Objective: This study aims to examine the association between dietary changes and improvement of metabolic syndrome components in Mexican postmenopausal women receiving two different nutrition interventions.
Methods: Women (n = 118) with metabolic syndrome were randomly assigned to group 1 (n = 63; structured hypocaloric diet) or group 2 (n = 55; behavioral therapy). Metabolic and nutrition assessment was performed at baseline and after 2, 4, and 6 months of intervention. Dietary changes throughout the study and achievement of cardioprotective dietary goals were assessed at the end of the intervention.
Results: There was a significant increase in the number of women who met recommended servings for fruits/vegetables, low-fat dairy, and sugars in both groups. In group 1, elimination of high-energy refined grains increased the probability of having normal fasting glucose (relative risk, 1.514; 95% CI, 0.989-2.316; P = 0.035). In this group, women who met the low-fat dairy goal at the end of the study had lower diastolic blood pressure (P = 0.012) and higher high-density lipoprotein cholesterol (P = 0.001). In group 2, women who met the high-fat dairy goal had greater probability of having normal fasting glucose (relative risk, 1.915; 95% CI, 1.123-3.266; P = 0.026). In all women, exclusion of high-fat dairy decreased by 60% the probability of having impaired fasting glucose (relative risk, 0.40; 95% CI, 0.181-0.906; P = 0.028).
Conclusions: Both strategies promote achievement of cardioprotective dietary goals for fruits/vegetables, sugars, soda and sweetened beverages, low-fat dairy, and high-energy refined grains, and improve some metabolic syndrome components. Elimination of high-fat dairy decreases the risk of impaired fasting glucose. Dietary strategies should be flexible and individualized based on metabolic profile.