Background/objectives In addition to weight-loss, healthy dietary patterns and lower sodium intakes can help reduce blood pressure (BP), but individualised dietary advice may be necessary to achieve these effects. This study aimed to examine the impact of individualised dietary advice on BP in the intensive phase of a weight-loss trial. Subjects/methods Secondary analysis of baseline and 3-month data from the HealthTrack randomised controlled trial (n = 211). Participants were randomly assigned to one of three dietary advice groups: general advice (control), individualised advice (intervention group, I), or intervention group supplemented with 30 g walnuts/day (IW). Resting BP and 24-h urine sodium and potassium were measured. Dietary intake was evaluated through diet history interviews. Results Unadjusted SBP reduced signiﬁcantly in all groups (IW and I groups P < 0.001; control group P = 0.002) and DBP in IW and I groups (P < 0.001). Compared to controls, the reductions in BP were 3–4 mmHg greater in the I and IW groups, but this only reached signiﬁcance for DBP in the I group (−3.3 mmHg; P = 0.041). After controlling for age, sex, medi- cation, weight-loss, physical activity and smoking, only the IW group showed a signiﬁcant association between SBP reduction
European Journal of Clinical Nutrition – Springer Journals
Published: Mar 20, 2018
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