Vitamin C-enriched gelatin supplementation before intermittent activity augments collagen synthesis

Shaw G, Lee-Barthel A, Ross ML, Wang B, Baar K · The American Journal of Clinical Nutrition

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15 g gelatin before exercise doubled serum PINP (a collagen-synthesis marker) and improved engineered-ligament mechanics ex vivo.

Population: Healthy young men, crossover design
Intervention: 5 or 15 g vitamin C-enriched gelatin taken 1 h before 6 min of rope skipping
Comparator: Placebo
Limitations: Very small crossover; surrogate biomarker rather than clinical outcome.

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2 entries reference this study

Collagen peptides
Supplements → Collagen & building blocks · key study
STRONGStrong
Gelatin + vitamin C before exercise
Foods & Nutrition → Collagen from food · key study
PROM.Promising