1 Graduate Program in Community Health, Ribeirão Preto Medical, School, University of São Paulo (USP), São Paulo, Brazil; 2 Department of Social Medicine, Ribeirão Preto Medical School, University of São Paulo (USP), São Paulo, Brazil.
Introduction: Maternal diet can lead to inadequate gestational weight gain, negatively affecting the health of mothers and children. However, few studies have investigated the relation between the Healthy Eating Index and excessive weight during pregnancy. Objective: To evaluate the association between components of the Healthy Eating Index for Brazilian Pregnancy (HEIP-B) and excessive weight during pregnancy. Method/Design: A cross-sectional study was conducted among 785 adult women, at the second trimester of pregnancy, in Ribeirão Preto, São Paulo state, Brazil. Excessive weight (overweight and obesity) during the pregnancy was defined according to Atalah criteria. Dietary intake was evaluated by two 24-hour dietary recalls and a food frequency questionnaire, and the Multiple Source Method was applied to estimate the usual intake of nutrients and foods. The relation between the components of the HEIP-B (vegetables; fruit; beans; white/ red meat ratio; fiber; trans fat acids; polyunsaturated/ saturated fatty acids ratio; folate; calcium and iron) and excessive weight during pregnancy, were investigated using logistic regression models, adjusted by age, schooling, physical activity, smoking status, gestational week at the time of the interview, and energy intake. Results: Among the 785 pregnant women evaluated, 448 (57%) had excessive weight. Pregnant women classified in the second [OR 0.64 (95% CI 0.44, 0.94), p < 0.05] and third tertiles of beans intake [OR 0.67 (95% CI 0.46, 0.99), p < 0.05] had a lower chance of excessive weight, when compared with women classified into the lowest intake. The highest intake of fiber was inversely associated with excessive weight [OR 0.60 (95% CI 0.40, 0.88), p < 0.05]. No associations between other HEIP-B components and excessive weight during pregnancy were found. Conclusions: Our findings suggest an inverse association between beans and fiber intake during mid-pregnancy and excessive weight. Funding: CAPE S,FAPESP,CNPq(472221/2010-8).