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Article

Vitamin D Supplementation Does Not Impact Resting Metabolic Rate, Body Composition and Strength in Vitamin D Sufficient Physically Active Adults

1
School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia
2
Faculty of Health, Torrens University Australia, Melbourne, VIC 3000, Australia
3
School of Physiotherapy and Exercise Science, Curtin University, Perth, WA 6102, Australia
*
Author to whom correspondence should be addressed.
Received: 11 September 2020 / Revised: 7 October 2020 / Accepted: 8 October 2020 / Published: 12 October 2020
(This article belongs to the Special Issue Vitamin D, Diet and Musculoskeletal Health)
Supplementation with the most efficient form of Vitamin D (VitD3) results in improvements in energy metabolism, muscle mass and strength in VitD deficient individuals. Whether similar outcomes occur in VitD sufficient individuals’ remains to be elucidated. The aim of this study is to determine the effect of VitD3 supplementation on resting metabolic rate (RMR), body composition and strength in VitD sufficient physically active young adults. Participants completed pre-supplementation testing before being matched for sunlight exposure and randomly allocated in a counterbalanced manner to the VitD3 or placebo group. Following 12 weeks of 50 IU/kg body-mass VitD3 supplementation, participants repeated the pre-supplementation testing. Thirty-one adults completed the study (19 females and 12 males; mean ± standard deviation (SD); age = 26.6 ± 4.9 years; BMI = 24.2 ± 4.1 kg·m2). The VitD group increased serum total 25(OH)D by 30 nmol/L while the placebo group decreased total serum concentration by 21 nmol/L, reaching 123 (51) and 53 (42.2) nmol/L, respectively. There were no significant changes in muscle strength or power, resting metabolic rate and body composition over the 12-week period. Physically active young adults that are VitD sufficient have demonstrated that no additional physiological effects of achieving supraphysiological serum total 25(OH)D concentrations after VitD3 supplementation. View Full-Text
Keywords: calcitriol; energy metabolism; muscle strength; lean mass; adults calcitriol; energy metabolism; muscle strength; lean mass; adults
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MDPI and ACS Style

Montenegro, K.R.; Cruzat, V.; Melder, H.; Jacques, A.; Newsholme, P.; Ducker, K.J. Vitamin D Supplementation Does Not Impact Resting Metabolic Rate, Body Composition and Strength in Vitamin D Sufficient Physically Active Adults. Nutrients 2020, 12, 3111. https://0-doi-org.brum.beds.ac.uk/10.3390/nu12103111

AMA Style

Montenegro KR, Cruzat V, Melder H, Jacques A, Newsholme P, Ducker KJ. Vitamin D Supplementation Does Not Impact Resting Metabolic Rate, Body Composition and Strength in Vitamin D Sufficient Physically Active Adults. Nutrients. 2020; 12(10):3111. https://0-doi-org.brum.beds.ac.uk/10.3390/nu12103111

Chicago/Turabian Style

Montenegro, Karina R., Vinicius Cruzat, Hilton Melder, Angela Jacques, Philip Newsholme, and Kagan J. Ducker. 2020. "Vitamin D Supplementation Does Not Impact Resting Metabolic Rate, Body Composition and Strength in Vitamin D Sufficient Physically Active Adults" Nutrients 12, no. 10: 3111. https://0-doi-org.brum.beds.ac.uk/10.3390/nu12103111

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