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Intakes and sources of total and added sugars among 4 to 13‐year‐old children in China, Mexico and the United States

Intakes and sources of total and added sugars among 4 to 13‐year‐old children in China, Mexico... IntroductionCulture and geography shape availability of foods, traditions, attitudes and preferences towards foods , which partly explain differences in nutrient intakes and the sources of nutrients across geographies. In the case of dietary sugars, several national and international recommendations on intakes of dietary sugars have been recently issued. There is a general global consensus that excess dietary sugar intakes may lead to excess weight gain and play a role in the development of non‐communicable diseases and should, therefore, be decreased . However, definitions and targets for recommendations differ broadly between organizations at both the national and international levels . While the World Health Organization (WHO) recommends to decrease free sugars to less than 10% total energy intake (TEI) with a preference to go as low as 5%, other recommendations range from 4.4% to 10% TEI with an upper limit of 25% TEI . Finally, some countries are advocating for a general reduction of sources of total and added sugars, without providing a specific threshold .Comparing intakes of nutrients such as dietary sugars across geographies may allow us to learn more about drivers of non‐communicable diseases at a national and international level, and also about the complexities that arise due to differing dietary recommendations.To our knowledge, there is no study to date examining dietary sugar intakes and their food sources across geographical regions using comparable methodology . To better understand the differences in food consumption patterns among 4 to 13‐year‐old children in different parts of the world, we conducted secondary data analysis from existing dietary surveys in China, Mexico and the United States in the frame of the Kids Nutrition and Health Study (KNHS) . The primary aim of this analysis was to assess the differences in intakes of total and added sugars in children in these countries. The secondary aim was to identify the main sources of total and added sugars.MethodsStudy populationSubjects for this study came from the 2011 China Health and Nutrition Survey (CHNS), 2012 Mexican National Health and Nutrition Survey (ENSANUT: Encuesta Nacional de Salud y Nutrición) and 2009–2012 What We Eat in America National Health and Nutrition Examination Surveys (NHANES). Secondary data analysis was carried out among 4 to 13‐year‐old children; 1460 from CHNS, 3980 from ENSANUT and 3647 from NHANES.The 2011 CHNS selected participants from nine provinces and three mega cities using a multistage random cluster design from its longitudinal household‐based cohort . With 27 447 individuals surveyed in 2011, the CHNS represents 47% of China's population, mirroring national age, gender and education profiles . ENSANUT is a cross‐sectional probabilistic population‐based survey which uses a multistage and stratified sampling to represent the Mexican population. A total of 50 528 Mexican households were surveyed between 2011 and 2012, with a response rate of 87%, from 32 federal entities . The NHANES uses a multistage stratified area probability sample of non‐institutionalized individuals, and examines a sample, weighted to be nationally representative, of about 5000 persons each year. Data from the 2009–2010 and 2011–2012 NHANES cycles were combined for this analysis .Dietary intake assessmentThe CHNS, ENSANUT and NHANES used the 24‐h recall method to collect dietary intake information. For the CHNS, dietary intake was collected from three consecutive 24‐h recalls during randomly allocated home visits from Monday to Sunday . For children <12 years old in CHNS, the person responsible for food preparation and feeding was used as a proxy for the children's food consumption. Conversely, children ≥12 years old reported food consumption at home or away from home themselves. Household food inventory and in‐house weighing approach were used to provide complementary information to estimate food consumption. For ENSANUT, a single 24‐h recall was administered on a random sub‐sample of the surveyed population via the USDA's Automated Multiple‐Pass Method (AMPM), which has been adapted to the Mexican context . The primary caregiver (usually the mother) reported the type and amount of foods and beverages consumed by the child while at home. In addition, children reported what they consumed away from home (i.e. while at school). In NHANES, dietary intakes were obtained from the Day 1 interviewer administered 24‐h dietary recalls also using the USDA's AMPM . Parents or caregivers of children younger than 5 years old responded to the survey on their behalf. Children 6–11 years old were assisted by a parent or caregiver, while children ≥12 years old completed the dietary interview on their own.In CHNS, food intake was converted into energy intake using the 2002 Chinese Food Composition Table (FCT) which contains approximately 2500 foods . Average intakes of the three consecutive 24‐h recalls were calculated. To capture energy intake in ENSANUT, the most recent FCT from Mexico was used which was based on a combination of pre‐existing Mexican FCTs (making up 67% of foods) and the FCT from USDA's Food and Nutrient Database for Dietary Studies (FNDDS) (making up 33% of foods). For NHANES, dietary intake data were converted to nutrient values using the USDA FNDDS . To calculate total and added sugar intakes in CHNS, ENSANUT (total and added sugars were neither available in the Chinese FCT nor in the Mexican FCT) and NHANES, each food was linked to the US Department of Agriculture's National Nutrient Database for Standard Reference , and then further linked to the MyPyramid Equivalents Database . Teaspoon equivalents in the Food Patterns Equivalents Database were converted to grams with the use of the ratio 4.2 g teaspoon−1.Food groupingsThe food/beverage groups (hereafter labelled food groups) used in this study have been previously published . We made a few modifications as follows: (i) separating unsweetened from sweetened milks and milk‐based beverages. Unsweetened milk‐based beverages include unsweetened cow's milk (plain milk and other dairy drinks) and unsweetened animal and plant‐based milks such as soy milk. Sweetened milk‐based beverages include sweetened cow's milk (flavoured milk, milkshakes, other sweetened dairy drinks) and sweetened animal and plant‐based milks such as soy milk. (ii) In Mexico, combining fruit juices and aguas frescas (beverage consisting of fruits, flowers or seeds with water and sugar) to create the fruit drinks food group. (iii) Separating ready‐to‐eat (RTE) cereals from cooked cereals such as oatmeal. Potatoes (all types, such as baked, boiled and fried potatoes) were included in the vegetables food group due to their low contribution to total sugars.Statistical analysesIn CHNS, an outlier was defined as any single intake data that was beyond four standard deviations of the same age group average. Data cleaning process included corrections to ID variables, corrections to the household roster, deletion of duplicate, records, deletion of blank records and recoding out‐of‐range values to missing status.Dietary intake data for ENSANUT were cleaned in two stages: hand cleaning of inconsistencies in coding of the food, quantities, recipe ingredients using questionnaires and field notes, followed by standardized imputations .After all food group assignments were made, population proportions were calculated to estimate the contribution of each to total and added sugar intakes. Results are given as population means (standard error (SE)) for energy intake (kcal d−1) and total and added sugars (g d−1 capita−1 and % energy intake). Differences in mean intakes of energy, total and added sugars between countries were tested by using Student's T tests with statistical significance set at P < 0.05 (Fig. ). Stata v.13 and v.14 (College Station, TX, USA) were used to conduct statistical analyses for CHNS and ENSANUT respectively, while SAS Version 9.2 (Cary, NC, USA) was used for NHANES.1Mean intake of energy, total and added sugars among 4–13‐year‐old children in China, Mexico and the United States. (A) Mean absolute energy intake (kcal d−1 capita−1) in China, Mexico and the United States. (B) Mean absolute intake of total and added sugars (g d−1 capita−1) in China, Mexico and the United States. (C) Mean relative intake of total and added sugars (percent of total daily energy d−1 capita−1) in China, Mexico and the United States. Energy, total and added sugar intakes were significantly different between countries (P < 0.05 for all two‐by‐two country comparisons using Students' T‐test). Standard errors for China, Mexico and the United States were 13.7, 20.3 and 17.0 for energy intake; 0.6, 1.5 and 1.5 for total sugar intakes; 0.3, 1.1 and 1.2 for added sugar intakes; 0.1, 0.3 and 0.3 for percent of energy from total sugars; 0.1, 0.2 and 0.2 for percent of energy from added sugars, respectively.ResultsAmong 9092 children in China, Mexico and the United States, mean age was similar at around 8 years old (Table ). The percentage of male to female children was equal in Mexico and the United States; in China, there was a slightly higher proportion of male children. There were differences in educational outcomes of the primary caregiver, with almost 58% of US caregivers having more than a high school education compared with 21% in China, and only 6% in Mexico.Socio‐demographic characteristics and dietary intakes of 4 to 13‐year‐old children in China, Mexico and the United StatesChinaMexicoUnited StatesSample size146039853647Socio‐demographic characteristicsMean age, years8.8 (1.7)8.5 (0.07)8.5 (0.08)Male, %52.0 (1.3)49.5 (1.1)50.2 (1.2)Education level of parents/guardians, %Less than elementary4.3 (0.6)5.4 (0.6)7.8 (1.1)Elementary‐secondary70.9 (1.3)88.2 (0.8)34.6 (1.2)More than high school24.8 (1.2)6.4 (0.6)57.6 (2.1)Values are expressed as mean (SE).US and Mexican children showed higher daily mean energy intake (~1900 kcal d−1) than Chinese children (~1400 kcal d−1) (Fig. ). US children had the highest mean total and added sugar consumption (124 and 76 g d−1, respectively) followed closely by Mexico (92 and 55 g d−1, respectively). Mean total and added sugars among US and Mexican children were more than three times higher compared to Chinese children (26 and 9 g d−1, respectively, p < 0.05). The percentage contribution of added sugars to energy intake also differed widely between countries: while added sugars contributed to less than 3% to total daily energy in Chinese children, it contributed to 12% among Mexican and 16% among US children (p < 0.05).The top 10 food sources made up 81% of total sugar intakes in China, 75% in Mexico and 72% in the United States (Table ). While this list was topped by fruits and vegetables (solid foods) in China, beverages (fruit drinks, soft drinks and milk‐based beverages) were the highest contributors to total sugars consumption in Mexico and the United States. All sugar‐sweetened beverages (SSBs) contributed to 43% of total sugar intakes in Mexico, 28% in the United States, while only 7% in China.2ATop 10 food sources of total sugar intakes among 4 to 13‐year‐old children in China, Mexico and the United StatesCountryRankFood/beverage groups% of total intakeMean (g)China1Fruits25.86.82Vegetables 16.44.33Rolls and buns10.52.84Unsweetened milk‐based beverages 9.02.45Cakes and pies7.72.06Sweetened milk‐based beverages 4.21.17Soft drink and fruit drinks2.20.68Olives, pickles, pickled vegetables1.90.59Yogurt1.90.510Candy1.80.5Top 1081% of total intakeMexico1Fruit drinks 14.813.72Soft drinks11.710.83Sweetened milk‐based beverages 9.78.94Fruits9.78.95Sweetened tea and coffee7.16.56Unsweetened milk‐based beverages 6.25.77Cookies4.64.38RTE cereal4.44.19Yogurt3.63.410Sweetened bread3.43.1Top 1075% of total intakeUnited States1Fruit drinks 10.112.62Soft drinks10.012.33Unsweetened milk‐based beverages 9.111.34Fruits8.510.65Sweetened milk‐based beverages 7.49.16100% fruit juice6.98.67Ice cream and frozen dairy desserts 6.07.58Candy5.67.09Cookies and brownies4.25.310RTE cereal4.04.9Top 1072% of total intakeaIncludes potatoes (which contribute to 1% of total sugar intakes in China).bUnsweetened milk‐based beverages include unsweetened cow's milk (plain milk and other dairy drinks); and unsweetened animal and plant‐based milks such as soy milk.cSweetened milk‐based beverages include sweetened cow's milk (flavoured milk, milkshakes, other sweetened dairy drinks); and sweetened animal and plant‐based milks such as soy milk.dFruit drinks include fruit‐flavoured drinks and other fruit‐based drinks such as aguas frescas (beverage consisting of fruits, flowers or seeds with water and sugar).eIncludes frozen yogurt, gelatins, ices, sorbets and puddings.The top 10 food sources contributed to 88% of added sugar intakes in China, 85% in Mexico and 79% in the United States (Table 2B). For Mexican and US children, the top 10 food sources of added sugars were similar to those for total sugars with soft drinks, fruit drinks and sweetened milk‐based beverages, at the top of the lists. Among Chinese children, all solid foods – such as rolls and buns and cakes and pies – contributed to 84% of added sugar intakes. Overall, sweets and sweetened beverages were the primary contributors to added sugars in China (51%), Mexico (74%) and the United States (72%).2BTop 10 food sources of added sugar intakes among 4 to 13‐year‐old children in China, Mexico and the United StatesCountryRankFood/beverage groups% of total intakeMean (g)China1Rolls and buns27.42.52Cakes and pies21.41.93Sweetened milk‐based beverages 9.30.84Candy5.10.55Soft drink and fruit drinks5.00.46Ice cream and frozen dairy desserts b4.70.47Olives, pickles, pickled vegetables4.30.48Crackers4.10.49Quick breads and bread products3.50.310Yeast breads3.50.3Top 1088% of total intakeMexico1Soft drinks19.010.82Fruit drinks17.29.73Sweetened milk‐based beverages 9.95.64Cookies8.75.05Sweetened tea and coffee7.14.06Sweetened bread6.03.47Yogurt4.72.78RTE cereal4.42.59Candy4.22.410Cakes3.52.0Top 1085% of total intakeUnited States1Soft drinks16.312.32Fruit drinks14.711.13Ice cream and frozen dairy desserts 8.16.14Candy7.25.55Cookies and brownies6.75.16Sweetened milk‐based beverages a6.54.97RTE cereal6.24.78Jams, syrups, toppings and honey5.34.09Cakes and pies4.73.610Sweetened tea and coffee3.72.8Top 1079% of total intakeaSweetened milk‐based beverages include sweetened cow's milk (flavoured milk, milkshakes, other sweetened dairy drinks); and sweetened animal and plant‐based milks such as soy milk.bIncludes frozen yogurt, gelatins, ices, sorbets and puddings.DiscussionIn this study, large differences were observed in both absolute and relative intakes of total and added sugars among children in China, Mexico and the United States. Compared to Chinese children, mean intakes of added sugars were 6 and 8 times higher among Mexican and US children, respectively. Moreover, added sugars represented only one third of total sugar intakes in Chinese children, while accounting for almost two third of total sugars in Mexican and US children. Differences in food sources of sugars explained these findings. While the main source of total sugars in China were fruits and vegetables (naturally‐occurring sugars), beverages (added sugars) contributed around 31% and 43% to total sugar intakes in Mexican and US children.Recent surveys have observed a stable decline in added sugars consumption in the United States over the past decade . Despite such reports, we found that consumption of both total and added sugars in the United States remains high, with mean intakes far above Mexico and China. Few data are available on intakes of sugars among children worldwide. Compared with Australian children, absolute intakes of added sugars (50 g d−1 for 4–8 years and 68 g d−1 for 9–13 years) and relative energy contribution (12% for 4–8 years and 13% for 9–13 years) were similar to those of Mexican children, but lower than those of US children . Comparing the results with other countries in Latin America, mean absolute intakes of added sugars among 10 to 19‐year‐old Brazilians (about 68 g) and 10 to 16‐year‐old (87 g and 15% TEI) Ecuadorians were closer to intakes among US children . In contrast, sugar consumption in China remained below these levels, despite social and economic transition and diets being more and more Westernized .The food preference plays an important role in sugar intakes, and the relative low added sugar intakes among Chinese children might be due to the regional food culture. A recent study reported a low consumption of total sugars and SSBs in Korean children and adolescents as compared to western countries . We found in this study that while soft drinks and fruit drinks were the top sources of added sugars in both Mexico and United States, these were not among the top 3 food sources in Chinese children. In addition, it has been reported that packaged processed foods contribute to a lower percent of all calories in China, compared to Mexico and the United States (30%, 58% and 75%, respectively) . Packaged processed food in general, and SSB in particular, are the main sources of added sugars: indeed, a 350‐mL serving of SSB can provide as much as 33 g of added sugars. Such differences in packaged food consumption may likely explain the lower added sugars consumption in China.Our data show that the added sugars contribution represented 12% and 16% of TEIs in Mexico and in the United States, respectively. This ratio was obtained by using the energy intake calculated from the participant's 24‐h dietary recall (1847 kcal in Mexico and 1905 kcal in the United States) and is above WHO's recommendation of 10% of total energy from free sugars. On average, the recommended energy intake for moderately active children aged 4–12 years can be assumed to be around 1700 kcal d−1 , indicating that overall mean energy consumption is above the recommended threshold as well. Therefore, if one would take this recommended energy intake value, the percent contribution of added sugars would be even higher, which represents a further risk of calorie displacement.Different food sources contributed to total and added sugar intakes between countries. In China, the main source of sugars was from naturally‐occurring sources, such as fruits and vegetables. In contrast, in both Mexico and the United States, the main contributors to sugar intakes were added sugars present in beverages, such as SSBs (soft drinks and fruit drinks) and sweetened milk‐based beverages. These results highlight the cultural differences in food choices. Previous research has also observed the excessive contribution of SSBs in the United States and Mexico . Indeed, in Mexico, some traditional dishes are commonly consumed with a sweetened beverage such as a soda rather than plain water. Second, while bakery products were common sources of total and added sugars across the three countries, the type of the bakery products differed. In China, these were mainly rolls and buns, cakes and pies; in Mexico, these were mostly cookies and sweetened breads (pan dulce); and in the United States these were mainly ice cream and frozen dairy desserts, candy, cookies and brownies, and RTE cereal (mostly high sugars RTE cereal (>21.2 g/100 g)). While these foods are typically consumed at snacking occasions or breakfast, their history of consumption varies between countries: in the United States, brownies, cookies and candies have been consumed for a long time and their consumption is embedded in the local culture. Similarly, in Mexico, bread was introduced by the Spaniards, and sweetened breads (pan dulce) are part of the every day diet . Finally, the introduction of sweet pastries is more recent in China; those may be consumed at the expense of traditional diets which comprise whole grains, legumes and vegetables, a reflection of the nutrition transition . This potentially rapid change in eating habits highlights the need to monitor the changes in intake of sweet bakery products with time in China.The data presented in this paper highlight the heterogeneity of food patterns worldwide, and the need for adapted country‐specific public health recommendations. One example is to encourage caregivers and children to limit consumption of SSBs and to make water and low‐fat milk the preferred beverage choices . Our data suggest that while such measure is of prime importance in the United States and Mexico, its impact may be more moderate in countries such as China, where SSBs contribute to only a minor proportion of sugar intakes. However, even with relatively low sugar intake, an association was found between the cardiometabolic risk factors and sugar consumption in Chinese children . Another way to reduce sugar intakes involves product reformulation by food manufacturers. Our data highlight the need to carefully select the targeted food groups in reformulation strategies, which should be country specific in order to be relevant and impactful. In China, where added sugars represent only a low proportion of total sugars, product reformulation may not be the preferred primary strategy as it may only reach a limited population.The biggest limitation in this study was the use of the US Food Patterns Equivalents Database to estimate total and added sugar intakes in China and Mexico. In fact, manufacturers could have different compositions for same product in different countries, possibly due to consumer tastes and preferences. However, a study in Mexico calculated added sugars using an algorithm and found similar mean intakes of added sugars and contribution of added sugars to TEI . Another limitation is that some differences in the recall methodologies could partly explain the comparability of the results between countries. The lack of the multiple pass 24‐h recall in China could lead to underreporting of foods and beverages. However, added sugars used in baking for example, could be captured using the household food inventory in China. Another methodological limitation is that the US FCT contains much more food items than the Chinese and Mexican ones. This could lead to more extensive reporting of foods and beverages in the United States and thus explain the higher total and added sugar intakes observed. However, while absolute intakes (g d−1 of total and added sugars) could be impacted by misreporting due to different methodologies across countries, using relative measures (percent of energy from total and added sugars) would make the comparison more even. Strengths of the study include the cross‐country comparison using nationally representative surveys, large sample sizes and use of validated 24‐h recalls to estimate food intake. Also, we were able to compare the food sources of sugar intakes across countries, identifying cultural preferences.In summary, our analysis revealed large differences in sources and intakes of total and added sugars between countries, highlighting the cultural specificities of food choice. Sugar intakes were substantially lower among Chinese children compared to Mexican and US children. Moreover, added sugars represented only a small proportion of total sugar intakes in Chinese children, while accounting for almost two third of total sugars in Mexican and US children. These data highlight (i) the value to translate overall recommendations to absolute intake ranges that are age group and sex specific, and (ii) the need for adapted and relevant country‐specific public health initiatives in order to be most impactful.Source of supportNestlé Research Center.AcknowledgementsWe thank Barry Popkin for his assistance in obtaining data and calculating results for the 2011 China Health and Nutrition Survey and 2012 Mexican National Health and Nutrition Survey. Phil Bardsley provided excellent data management and programming assistance for computing China and Mexico results. We thank Victor Fulgoni for analysis of the US data. We would like to acknowledge Lolita Bazarova for supporting this project idea and guiding along the way, Alison Eldridge for critical review of the manuscript and Kevin Mathias for his valuable support in answering the reviewers' comments.Conflict of InterestAll authors were employed at the Nestlé Research Center at the time this work was performed. BNSK is currently at the State University of New York at Buffalo.Author contributionsMCA and KAL designed the research question and study design. All authors contributed to data interpretation. MCA, BNSK and KAL wrote the first draft of the manuscript. All authors reviewed, edited and had final approval of the manuscript.ReferencesAtkins P, Bowler I. Food in Society: Economy, Culture, Geography. : Routledge, 2016.Te Morenga L, Mallard S, Mann J. Dietary sugars and body weight: systematic review and meta‐analyses of randomised controlled trials and cohort studies. 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Obesity, non‐communicable disease (NCD) risk factors and dietary factors among Chinese school‐aged children. Asia Pac J Clin Nutr 2016; 25: 826–840. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pediatric Obesity Wiley

Intakes and sources of total and added sugars among 4 to 13‐year‐old children in China, Mexico and the United States

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Abstract

IntroductionCulture and geography shape availability of foods, traditions, attitudes and preferences towards foods , which partly explain differences in nutrient intakes and the sources of nutrients across geographies. In the case of dietary sugars, several national and international recommendations on intakes of dietary sugars have been recently issued. There is a general global consensus that excess dietary sugar intakes may lead to excess weight gain and play a role in the development of non‐communicable diseases and should, therefore, be decreased . However, definitions and targets for recommendations differ broadly between organizations at both the national and international levels . While the World Health Organization (WHO) recommends to decrease free sugars to less than 10% total energy intake (TEI) with a preference to go as low as 5%, other recommendations range from 4.4% to 10% TEI with an upper limit of 25% TEI . Finally, some countries are advocating for a general reduction of sources of total and added sugars, without providing a specific threshold .Comparing intakes of nutrients such as dietary sugars across geographies may allow us to learn more about drivers of non‐communicable diseases at a national and international level, and also about the complexities that arise due to differing dietary recommendations.To our knowledge, there is no study to date examining dietary sugar intakes and their food sources across geographical regions using comparable methodology . To better understand the differences in food consumption patterns among 4 to 13‐year‐old children in different parts of the world, we conducted secondary data analysis from existing dietary surveys in China, Mexico and the United States in the frame of the Kids Nutrition and Health Study (KNHS) . The primary aim of this analysis was to assess the differences in intakes of total and added sugars in children in these countries. The secondary aim was to identify the main sources of total and added sugars.MethodsStudy populationSubjects for this study came from the 2011 China Health and Nutrition Survey (CHNS), 2012 Mexican National Health and Nutrition Survey (ENSANUT: Encuesta Nacional de Salud y Nutrición) and 2009–2012 What We Eat in America National Health and Nutrition Examination Surveys (NHANES). Secondary data analysis was carried out among 4 to 13‐year‐old children; 1460 from CHNS, 3980 from ENSANUT and 3647 from NHANES.The 2011 CHNS selected participants from nine provinces and three mega cities using a multistage random cluster design from its longitudinal household‐based cohort . With 27 447 individuals surveyed in 2011, the CHNS represents 47% of China's population, mirroring national age, gender and education profiles . ENSANUT is a cross‐sectional probabilistic population‐based survey which uses a multistage and stratified sampling to represent the Mexican population. A total of 50 528 Mexican households were surveyed between 2011 and 2012, with a response rate of 87%, from 32 federal entities . The NHANES uses a multistage stratified area probability sample of non‐institutionalized individuals, and examines a sample, weighted to be nationally representative, of about 5000 persons each year. Data from the 2009–2010 and 2011–2012 NHANES cycles were combined for this analysis .Dietary intake assessmentThe CHNS, ENSANUT and NHANES used the 24‐h recall method to collect dietary intake information. For the CHNS, dietary intake was collected from three consecutive 24‐h recalls during randomly allocated home visits from Monday to Sunday . For children <12 years old in CHNS, the person responsible for food preparation and feeding was used as a proxy for the children's food consumption. Conversely, children ≥12 years old reported food consumption at home or away from home themselves. Household food inventory and in‐house weighing approach were used to provide complementary information to estimate food consumption. For ENSANUT, a single 24‐h recall was administered on a random sub‐sample of the surveyed population via the USDA's Automated Multiple‐Pass Method (AMPM), which has been adapted to the Mexican context . The primary caregiver (usually the mother) reported the type and amount of foods and beverages consumed by the child while at home. In addition, children reported what they consumed away from home (i.e. while at school). In NHANES, dietary intakes were obtained from the Day 1 interviewer administered 24‐h dietary recalls also using the USDA's AMPM . Parents or caregivers of children younger than 5 years old responded to the survey on their behalf. Children 6–11 years old were assisted by a parent or caregiver, while children ≥12 years old completed the dietary interview on their own.In CHNS, food intake was converted into energy intake using the 2002 Chinese Food Composition Table (FCT) which contains approximately 2500 foods . Average intakes of the three consecutive 24‐h recalls were calculated. To capture energy intake in ENSANUT, the most recent FCT from Mexico was used which was based on a combination of pre‐existing Mexican FCTs (making up 67% of foods) and the FCT from USDA's Food and Nutrient Database for Dietary Studies (FNDDS) (making up 33% of foods). For NHANES, dietary intake data were converted to nutrient values using the USDA FNDDS . To calculate total and added sugar intakes in CHNS, ENSANUT (total and added sugars were neither available in the Chinese FCT nor in the Mexican FCT) and NHANES, each food was linked to the US Department of Agriculture's National Nutrient Database for Standard Reference , and then further linked to the MyPyramid Equivalents Database . Teaspoon equivalents in the Food Patterns Equivalents Database were converted to grams with the use of the ratio 4.2 g teaspoon−1.Food groupingsThe food/beverage groups (hereafter labelled food groups) used in this study have been previously published . We made a few modifications as follows: (i) separating unsweetened from sweetened milks and milk‐based beverages. Unsweetened milk‐based beverages include unsweetened cow's milk (plain milk and other dairy drinks) and unsweetened animal and plant‐based milks such as soy milk. Sweetened milk‐based beverages include sweetened cow's milk (flavoured milk, milkshakes, other sweetened dairy drinks) and sweetened animal and plant‐based milks such as soy milk. (ii) In Mexico, combining fruit juices and aguas frescas (beverage consisting of fruits, flowers or seeds with water and sugar) to create the fruit drinks food group. (iii) Separating ready‐to‐eat (RTE) cereals from cooked cereals such as oatmeal. Potatoes (all types, such as baked, boiled and fried potatoes) were included in the vegetables food group due to their low contribution to total sugars.Statistical analysesIn CHNS, an outlier was defined as any single intake data that was beyond four standard deviations of the same age group average. Data cleaning process included corrections to ID variables, corrections to the household roster, deletion of duplicate, records, deletion of blank records and recoding out‐of‐range values to missing status.Dietary intake data for ENSANUT were cleaned in two stages: hand cleaning of inconsistencies in coding of the food, quantities, recipe ingredients using questionnaires and field notes, followed by standardized imputations .After all food group assignments were made, population proportions were calculated to estimate the contribution of each to total and added sugar intakes. Results are given as population means (standard error (SE)) for energy intake (kcal d−1) and total and added sugars (g d−1 capita−1 and % energy intake). Differences in mean intakes of energy, total and added sugars between countries were tested by using Student's T tests with statistical significance set at P < 0.05 (Fig. ). Stata v.13 and v.14 (College Station, TX, USA) were used to conduct statistical analyses for CHNS and ENSANUT respectively, while SAS Version 9.2 (Cary, NC, USA) was used for NHANES.1Mean intake of energy, total and added sugars among 4–13‐year‐old children in China, Mexico and the United States. (A) Mean absolute energy intake (kcal d−1 capita−1) in China, Mexico and the United States. (B) Mean absolute intake of total and added sugars (g d−1 capita−1) in China, Mexico and the United States. (C) Mean relative intake of total and added sugars (percent of total daily energy d−1 capita−1) in China, Mexico and the United States. Energy, total and added sugar intakes were significantly different between countries (P < 0.05 for all two‐by‐two country comparisons using Students' T‐test). Standard errors for China, Mexico and the United States were 13.7, 20.3 and 17.0 for energy intake; 0.6, 1.5 and 1.5 for total sugar intakes; 0.3, 1.1 and 1.2 for added sugar intakes; 0.1, 0.3 and 0.3 for percent of energy from total sugars; 0.1, 0.2 and 0.2 for percent of energy from added sugars, respectively.ResultsAmong 9092 children in China, Mexico and the United States, mean age was similar at around 8 years old (Table ). The percentage of male to female children was equal in Mexico and the United States; in China, there was a slightly higher proportion of male children. There were differences in educational outcomes of the primary caregiver, with almost 58% of US caregivers having more than a high school education compared with 21% in China, and only 6% in Mexico.Socio‐demographic characteristics and dietary intakes of 4 to 13‐year‐old children in China, Mexico and the United StatesChinaMexicoUnited StatesSample size146039853647Socio‐demographic characteristicsMean age, years8.8 (1.7)8.5 (0.07)8.5 (0.08)Male, %52.0 (1.3)49.5 (1.1)50.2 (1.2)Education level of parents/guardians, %Less than elementary4.3 (0.6)5.4 (0.6)7.8 (1.1)Elementary‐secondary70.9 (1.3)88.2 (0.8)34.6 (1.2)More than high school24.8 (1.2)6.4 (0.6)57.6 (2.1)Values are expressed as mean (SE).US and Mexican children showed higher daily mean energy intake (~1900 kcal d−1) than Chinese children (~1400 kcal d−1) (Fig. ). US children had the highest mean total and added sugar consumption (124 and 76 g d−1, respectively) followed closely by Mexico (92 and 55 g d−1, respectively). Mean total and added sugars among US and Mexican children were more than three times higher compared to Chinese children (26 and 9 g d−1, respectively, p < 0.05). The percentage contribution of added sugars to energy intake also differed widely between countries: while added sugars contributed to less than 3% to total daily energy in Chinese children, it contributed to 12% among Mexican and 16% among US children (p < 0.05).The top 10 food sources made up 81% of total sugar intakes in China, 75% in Mexico and 72% in the United States (Table ). While this list was topped by fruits and vegetables (solid foods) in China, beverages (fruit drinks, soft drinks and milk‐based beverages) were the highest contributors to total sugars consumption in Mexico and the United States. All sugar‐sweetened beverages (SSBs) contributed to 43% of total sugar intakes in Mexico, 28% in the United States, while only 7% in China.2ATop 10 food sources of total sugar intakes among 4 to 13‐year‐old children in China, Mexico and the United StatesCountryRankFood/beverage groups% of total intakeMean (g)China1Fruits25.86.82Vegetables 16.44.33Rolls and buns10.52.84Unsweetened milk‐based beverages 9.02.45Cakes and pies7.72.06Sweetened milk‐based beverages 4.21.17Soft drink and fruit drinks2.20.68Olives, pickles, pickled vegetables1.90.59Yogurt1.90.510Candy1.80.5Top 1081% of total intakeMexico1Fruit drinks 14.813.72Soft drinks11.710.83Sweetened milk‐based beverages 9.78.94Fruits9.78.95Sweetened tea and coffee7.16.56Unsweetened milk‐based beverages 6.25.77Cookies4.64.38RTE cereal4.44.19Yogurt3.63.410Sweetened bread3.43.1Top 1075% of total intakeUnited States1Fruit drinks 10.112.62Soft drinks10.012.33Unsweetened milk‐based beverages 9.111.34Fruits8.510.65Sweetened milk‐based beverages 7.49.16100% fruit juice6.98.67Ice cream and frozen dairy desserts 6.07.58Candy5.67.09Cookies and brownies4.25.310RTE cereal4.04.9Top 1072% of total intakeaIncludes potatoes (which contribute to 1% of total sugar intakes in China).bUnsweetened milk‐based beverages include unsweetened cow's milk (plain milk and other dairy drinks); and unsweetened animal and plant‐based milks such as soy milk.cSweetened milk‐based beverages include sweetened cow's milk (flavoured milk, milkshakes, other sweetened dairy drinks); and sweetened animal and plant‐based milks such as soy milk.dFruit drinks include fruit‐flavoured drinks and other fruit‐based drinks such as aguas frescas (beverage consisting of fruits, flowers or seeds with water and sugar).eIncludes frozen yogurt, gelatins, ices, sorbets and puddings.The top 10 food sources contributed to 88% of added sugar intakes in China, 85% in Mexico and 79% in the United States (Table 2B). For Mexican and US children, the top 10 food sources of added sugars were similar to those for total sugars with soft drinks, fruit drinks and sweetened milk‐based beverages, at the top of the lists. Among Chinese children, all solid foods – such as rolls and buns and cakes and pies – contributed to 84% of added sugar intakes. Overall, sweets and sweetened beverages were the primary contributors to added sugars in China (51%), Mexico (74%) and the United States (72%).2BTop 10 food sources of added sugar intakes among 4 to 13‐year‐old children in China, Mexico and the United StatesCountryRankFood/beverage groups% of total intakeMean (g)China1Rolls and buns27.42.52Cakes and pies21.41.93Sweetened milk‐based beverages 9.30.84Candy5.10.55Soft drink and fruit drinks5.00.46Ice cream and frozen dairy desserts b4.70.47Olives, pickles, pickled vegetables4.30.48Crackers4.10.49Quick breads and bread products3.50.310Yeast breads3.50.3Top 1088% of total intakeMexico1Soft drinks19.010.82Fruit drinks17.29.73Sweetened milk‐based beverages 9.95.64Cookies8.75.05Sweetened tea and coffee7.14.06Sweetened bread6.03.47Yogurt4.72.78RTE cereal4.42.59Candy4.22.410Cakes3.52.0Top 1085% of total intakeUnited States1Soft drinks16.312.32Fruit drinks14.711.13Ice cream and frozen dairy desserts 8.16.14Candy7.25.55Cookies and brownies6.75.16Sweetened milk‐based beverages a6.54.97RTE cereal6.24.78Jams, syrups, toppings and honey5.34.09Cakes and pies4.73.610Sweetened tea and coffee3.72.8Top 1079% of total intakeaSweetened milk‐based beverages include sweetened cow's milk (flavoured milk, milkshakes, other sweetened dairy drinks); and sweetened animal and plant‐based milks such as soy milk.bIncludes frozen yogurt, gelatins, ices, sorbets and puddings.DiscussionIn this study, large differences were observed in both absolute and relative intakes of total and added sugars among children in China, Mexico and the United States. Compared to Chinese children, mean intakes of added sugars were 6 and 8 times higher among Mexican and US children, respectively. Moreover, added sugars represented only one third of total sugar intakes in Chinese children, while accounting for almost two third of total sugars in Mexican and US children. Differences in food sources of sugars explained these findings. While the main source of total sugars in China were fruits and vegetables (naturally‐occurring sugars), beverages (added sugars) contributed around 31% and 43% to total sugar intakes in Mexican and US children.Recent surveys have observed a stable decline in added sugars consumption in the United States over the past decade . Despite such reports, we found that consumption of both total and added sugars in the United States remains high, with mean intakes far above Mexico and China. Few data are available on intakes of sugars among children worldwide. Compared with Australian children, absolute intakes of added sugars (50 g d−1 for 4–8 years and 68 g d−1 for 9–13 years) and relative energy contribution (12% for 4–8 years and 13% for 9–13 years) were similar to those of Mexican children, but lower than those of US children . Comparing the results with other countries in Latin America, mean absolute intakes of added sugars among 10 to 19‐year‐old Brazilians (about 68 g) and 10 to 16‐year‐old (87 g and 15% TEI) Ecuadorians were closer to intakes among US children . In contrast, sugar consumption in China remained below these levels, despite social and economic transition and diets being more and more Westernized .The food preference plays an important role in sugar intakes, and the relative low added sugar intakes among Chinese children might be due to the regional food culture. A recent study reported a low consumption of total sugars and SSBs in Korean children and adolescents as compared to western countries . We found in this study that while soft drinks and fruit drinks were the top sources of added sugars in both Mexico and United States, these were not among the top 3 food sources in Chinese children. In addition, it has been reported that packaged processed foods contribute to a lower percent of all calories in China, compared to Mexico and the United States (30%, 58% and 75%, respectively) . Packaged processed food in general, and SSB in particular, are the main sources of added sugars: indeed, a 350‐mL serving of SSB can provide as much as 33 g of added sugars. Such differences in packaged food consumption may likely explain the lower added sugars consumption in China.Our data show that the added sugars contribution represented 12% and 16% of TEIs in Mexico and in the United States, respectively. This ratio was obtained by using the energy intake calculated from the participant's 24‐h dietary recall (1847 kcal in Mexico and 1905 kcal in the United States) and is above WHO's recommendation of 10% of total energy from free sugars. On average, the recommended energy intake for moderately active children aged 4–12 years can be assumed to be around 1700 kcal d−1 , indicating that overall mean energy consumption is above the recommended threshold as well. Therefore, if one would take this recommended energy intake value, the percent contribution of added sugars would be even higher, which represents a further risk of calorie displacement.Different food sources contributed to total and added sugar intakes between countries. In China, the main source of sugars was from naturally‐occurring sources, such as fruits and vegetables. In contrast, in both Mexico and the United States, the main contributors to sugar intakes were added sugars present in beverages, such as SSBs (soft drinks and fruit drinks) and sweetened milk‐based beverages. These results highlight the cultural differences in food choices. Previous research has also observed the excessive contribution of SSBs in the United States and Mexico . Indeed, in Mexico, some traditional dishes are commonly consumed with a sweetened beverage such as a soda rather than plain water. Second, while bakery products were common sources of total and added sugars across the three countries, the type of the bakery products differed. In China, these were mainly rolls and buns, cakes and pies; in Mexico, these were mostly cookies and sweetened breads (pan dulce); and in the United States these were mainly ice cream and frozen dairy desserts, candy, cookies and brownies, and RTE cereal (mostly high sugars RTE cereal (>21.2 g/100 g)). While these foods are typically consumed at snacking occasions or breakfast, their history of consumption varies between countries: in the United States, brownies, cookies and candies have been consumed for a long time and their consumption is embedded in the local culture. Similarly, in Mexico, bread was introduced by the Spaniards, and sweetened breads (pan dulce) are part of the every day diet . Finally, the introduction of sweet pastries is more recent in China; those may be consumed at the expense of traditional diets which comprise whole grains, legumes and vegetables, a reflection of the nutrition transition . This potentially rapid change in eating habits highlights the need to monitor the changes in intake of sweet bakery products with time in China.The data presented in this paper highlight the heterogeneity of food patterns worldwide, and the need for adapted country‐specific public health recommendations. One example is to encourage caregivers and children to limit consumption of SSBs and to make water and low‐fat milk the preferred beverage choices . Our data suggest that while such measure is of prime importance in the United States and Mexico, its impact may be more moderate in countries such as China, where SSBs contribute to only a minor proportion of sugar intakes. However, even with relatively low sugar intake, an association was found between the cardiometabolic risk factors and sugar consumption in Chinese children . Another way to reduce sugar intakes involves product reformulation by food manufacturers. Our data highlight the need to carefully select the targeted food groups in reformulation strategies, which should be country specific in order to be relevant and impactful. In China, where added sugars represent only a low proportion of total sugars, product reformulation may not be the preferred primary strategy as it may only reach a limited population.The biggest limitation in this study was the use of the US Food Patterns Equivalents Database to estimate total and added sugar intakes in China and Mexico. In fact, manufacturers could have different compositions for same product in different countries, possibly due to consumer tastes and preferences. However, a study in Mexico calculated added sugars using an algorithm and found similar mean intakes of added sugars and contribution of added sugars to TEI . Another limitation is that some differences in the recall methodologies could partly explain the comparability of the results between countries. The lack of the multiple pass 24‐h recall in China could lead to underreporting of foods and beverages. However, added sugars used in baking for example, could be captured using the household food inventory in China. Another methodological limitation is that the US FCT contains much more food items than the Chinese and Mexican ones. This could lead to more extensive reporting of foods and beverages in the United States and thus explain the higher total and added sugar intakes observed. However, while absolute intakes (g d−1 of total and added sugars) could be impacted by misreporting due to different methodologies across countries, using relative measures (percent of energy from total and added sugars) would make the comparison more even. Strengths of the study include the cross‐country comparison using nationally representative surveys, large sample sizes and use of validated 24‐h recalls to estimate food intake. Also, we were able to compare the food sources of sugar intakes across countries, identifying cultural preferences.In summary, our analysis revealed large differences in sources and intakes of total and added sugars between countries, highlighting the cultural specificities of food choice. Sugar intakes were substantially lower among Chinese children compared to Mexican and US children. Moreover, added sugars represented only a small proportion of total sugar intakes in Chinese children, while accounting for almost two third of total sugars in Mexican and US children. These data highlight (i) the value to translate overall recommendations to absolute intake ranges that are age group and sex specific, and (ii) the need for adapted and relevant country‐specific public health initiatives in order to be most impactful.Source of supportNestlé Research Center.AcknowledgementsWe thank Barry Popkin for his assistance in obtaining data and calculating results for the 2011 China Health and Nutrition Survey and 2012 Mexican National Health and Nutrition Survey. Phil Bardsley provided excellent data management and programming assistance for computing China and Mexico results. We thank Victor Fulgoni for analysis of the US data. We would like to acknowledge Lolita Bazarova for supporting this project idea and guiding along the way, Alison Eldridge for critical review of the manuscript and Kevin Mathias for his valuable support in answering the reviewers' comments.Conflict of InterestAll authors were employed at the Nestlé Research Center at the time this work was performed. BNSK is currently at the State University of New York at Buffalo.Author contributionsMCA and KAL designed the research question and study design. All authors contributed to data interpretation. MCA, BNSK and KAL wrote the first draft of the manuscript. All authors reviewed, edited and had final approval of the manuscript.ReferencesAtkins P, Bowler I. Food in Society: Economy, Culture, Geography. : Routledge, 2016.Te Morenga L, Mallard S, Mann J. Dietary sugars and body weight: systematic review and meta‐analyses of randomised controlled trials and cohort studies. 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Journal

Pediatric Obesity – Wiley

Published: Apr 1, 2018

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