Whey protein, amino acids, and vitamin D supplementation with physical activity increases fat-free mass and strength, functionality, and quality of life in sarcopenic elderly
Rondanelli M, Klersy C
Published in American Journal of Clinical Nutrition
Methodology
Randomized controlled trial of whey protein, essential amino acids and vitamin D with activity in sarcopenic older adults.
Key Findings
Supplementation increased fat-free mass, strength and IGF-1 concentrations relative to placebo.
Conclusions
Combined whey plus vitamin D raises IGF-1 alongside functional gains in sarcopenia.
Limitations
Older sarcopenic adults only; combined intervention prevents attributing effects to one nutrient.
Supplements Studied
Whey protein, essential amino acids and vitamin D increased IGF-1 alongside fat-free mass in sarcopenic elderly
Whey protein, amino acids and vitamin D increased fat-free mass, strength and IGF-1 in sarcopenic elderly
Outcomes Measured
Whey protein, amino acids, and vitamin D supplementation with physical activity increases fat-free mass and strength, functionality, and quality of life in sarcopenic elderly
Compared with physical activity and placebo, supplementation plus physical activity increased fat-free mass (1.7-kg gain, P < 0.001), relative skeletal muscle mass (P = 0.009), android distribution of fat (P = 0.021), handgrip strength (P = 0.001)
Study Details
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