Publications [#250660] of Gary G. Bennett

Journal Articles

1. Chandler, PD; Scott, JB; Drake, BF; Ng, K; Chan, AT; Hollis, BW; Emmons, KM; Giovannucci, EL; Fuchs, CS; Bennett, GG (2015). Impact of vitamin D supplementation on adiposity in African-Americans.. Nutrition & diabetes, 5, e147. [doi]
   (last updated on 2026/01/15)

   Abstract:
   

   Background

   African-Americans have higher rates of obesity-associated chronic diseases. Serum 25-hydroxyvitamin D (25(OH)D) shows an inverse association with obesity status. We investigated whether vitamin D supplementation changes body mass index (BMI).

   Subjects

   In total, 328 overweight African-Americans were enrolled over three consecutive winter periods (2007-2010) into a randomized, double-blind, placebo-controlled trial to receive cholecalciferol supplementation (0, 1000 international units (IU), 2000 IU or 4000 IU per day) for 3 months. Plasma concentrations of 25(OH)D and anthropometric measurements were done at baseline, 3 and 6 months.

   Results

   At 3 months, vitamin D supplementation in three dose groups (1000 IU, 2000 IU or 4000 IU per day) did not cause any significant changes in BMI as compared with placebo group 3-month change in BMI per 1000 IU per day estimate (SE): 0.01 (0.039); P=0.78.

   Conclusions

   In overweight African-Americans, short-term high-dose vitamin D supplementation did not alter BMI.