A cross-sectional study of carbohydrate intake in relation to overweight and obesity. Data were taken from The Canadian Community Health Survey Cycle 2.2, 2004-2005 (n=4451 healthy adults). Diet was evaluated using a 24-hr dietary recall. One third of respondents were asked to complete the questionnaire for a second, randomly chosen day. After multivariate adjustment, carbohydrate intake and overweight and obesity were inversely related: the risk of overweight and obesity was 40% lower in the highest carbohydrate intake category, compared to the lowest. The likelihood of overweight and obesity declined as carbohydrate intake increased, up to 290-310g/d: at that point, the likelihood of overweight/obesity began to rise, but the risk was still reduced as compared to the lowest carbohydrate intakes. BMI decreased as carbohydrate intake increased, until it reached 290-310g/d.
August 2009