Premium
Effect of Total Protein Intake on Bone Health in Overweight and Obese Adults Following a 36‐Week Exercise and Diet Intervention
Author(s) -
Wright Christian,
WeinheimerHaus Eileen,
Campbell Wayne
Publication year - 2015
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.29.1_supplement.738.8
Subject(s) - medicine , overweight , bone mineral , femoral neck , obesity , bone density , endocrinology , body mass index , bone mineral content , osteoporosis
Dietary protein is an essential macronutrient required for proper skeletal growth and adaptation. However, controversy exists concerning the effects of higher total protein intake (TPro) on bone health, which may be associated with reduced bone mineral density (BMD). This study investigated the effects of TPro (dietary intake + supplementation) and change in TPro (post‐pre) on BMD and bone mineral content (BMC; total body, total femur, femoral neck, and lumbar spine) in overweight and obese adults (N=113, age 50 ± 8 y, BMI 30.1 ± 2.9 kg/m 2 ). This secondary analysis utilized data from a 36‐week intervention where participants consumed whey protein supplements (0g, 10g, 20g, and 30g consumed twice daily with breakfast and lunch) along with their otherwise unrestricted diet and performed exercise training (resistance 2 d/wk and aerobic 1 d/wk). Anticipated differences and trends in indices of bone health (BMD and BMC) were observed including lower BMD in women versus men and decreases in BMD over time in peri‐menopausal women. Using a multiple linear regression model, TPro (g•d ‐1 or g•kg ‐1 •d ‐1 ) and change in TPro (g•d ‐1 ) were not associated with changes in total or regional BMD or BMC. Employing a cluster analysis approach (< 1.0 (n=41); 1.0‐1.2 (n=28); 蠅1.2 g•kg ‐1 •d ‐1 (n=43)), TPro was also not associated with changes in total or regional BMD or BMC over time.Dietary protein did not negatively or beneficial affect bone health in overweight and obese adults during a 9‐month exercise intervention. Funding: U.S. Whey Protein Research Consortium (WWC),NIH T32AG025671 (EMWH), NIH UL1TR001108, and USDA NIFA #2011‐38420‐20038 (WWC)