Poster Topical Area: Energy and Macronutrient Metabolism
Location: Hall D
Poster Board Number: 454
Objectives: To estimate changes in gestational weight gain (GWG) by lowering energy density through increased fruit intake.
Methods: Seventy-four overweight and obese pregnant Latinas completed a prenatal 24-hour recall in a mixed methods study designed to inform an intervention to improve prenatal fruit and vegetable intake. Women were included if they were: a) ≥ 18 years old; b) in their 2nd trimester of pregnancy; c) low-income; d) Latina; e) having a singleton pregnancy; f) overweight or obese (i.e. pregravid body mass index ≥ 25); g) not on a restricted diet. Fruit servings were computed with the Nutrient Data System for Research software. GWG change associated with energy density changes related to incremental increases in fruit intake was predicted using multivariable linear regression.
Results: Energy density (ED) was 1.27 kcal/grams and median fruit intakes were an average of 1.1 servings. Computer simulations found that increasing fruit intake incrementally by 0.5 servings (e.g. 0.5 of an apple with skin) decreased ED by 0.84 kcal/grams, 1 serving decreased ED by 1.36 kcal/grams, 1.5 servings decreased ED by 1.84 kcal/grams, two servings of fruit decreased ED by 0.15 kcal/grams, and three servings decreased ED by 0.20 kcal/grams. Changes in ED across all scenarios improved fiber, water, folate, vitamin C, carotenoids, and iron intakes. Reducing prenatal ED by 0.15 kcal/grams (i.e. 2 fruit servings) was estimated to reduce GWG by 2.51 lbs. Similarly, reducing prenatal ED by 0.20 kcal/grams (i.e. 3 fruit servings) was estimated to reduce GWG by 3.35 lbs. Subsequently, reducing prenatal ED by 0.20 kcal/grams resulted in a decrease of excessive GWG prevalence by 11.8% in our sample.
Conclusions: Preliminary findings suggest that increasing prenatal fruit intake has the potential to modify energy density, subsequently reducing gestational weight gain among overweight and obese pregnant Latinas.
New Haven, Connecticut