| Abstrakt: |
A potential behavior change among obese individuals to promote better health is the inclusion of high amounts of vegetables and fruits in the diet. If vegetables and fruits that are low in energy density replace energy dense foods, such as fats and simple sugars, additional weight gain may be prevented and weight loss may even be promoted. Whereas calorie counting as a weight-loss strategy can be difficult and time consuming, a focus on consuming a high vegetable diet may be preferable for individuals seeking a simpler long-term solution. Obese (BMI 30-40 kg/m²) men and women (n = 57) underwent a 12-wk weight loss intervention. Group 1 restricted caloric intake by 500 kcal/d and fat to 25% of total kcal. Group 2 was instructed to consume at least 4 cups vegetables and 1 cup fruit per d. Blood chemistry was evaluated at baseline, 12 wk, and 1 y and serum carotenoids out to 1.5 y to evaluate vegetable consumption. After 12 wk, both groups showed modest weight loss. Group 1 lost significantly more fat weight (4.8 vs. i.9 kg, P < 0.01) and body weight (4.9 vs. 1.4 kg, P < 0.01) than group 2. Triglycerides decreased in group 1 but increased in group 2 (P = 0.01). After 1 y, (n = 46) body weight, fat mass and lean mass did not differ, indicating that neither dietary strategy was effective at sustaining weight loss when subjects were independently maintaining their diets. [ABSTRACT FROM AUTHOR] |
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