NSTK · 01.2026Independent supplement reference
NutriStack
Edition 1.0Updated August 1, 2026

Supplement × Supplement·Evidence index

Collagen Peptides and Vitamin C: what the published research says

PubMed indexes 5 records that name Collagen Peptides and Vitamin C together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.

Read this first

An evidence index, not guidance.

Every statement below is attributed to a named, dated, linked source.

This page lists published research relevant to Collagen Peptides and Vitamin C. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.

The research

5 studies naming Collagen Peptides and Vitamin C.

Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.

The diets of school-aged Aboriginal youths in Canada: a systematic review of the literature.

Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2015 · PMID 24852456

Systematic ReviewHuman subjects

“The diets of Canadian Aboriginal youths are energy-dense and nutrient-poor. The diets of Inuit and Métis youths, in particular, and perceptions of a balanced diet warrant further investigation.”

Gates et al. · Authors' conclusion

Names Collagen Peptides and Vitamin C together in an interaction, co-administration, or pharmacokinetic context.

Collagen Supplementation Augments Strength Training-Induced Gains in Tendon Size and Rate of Force Development in Elite Female Master Field Hockey Athletes.

International journal of sport nutrition and exercise metabolism · 2025 · PMID 40992424

Randomized Controlled Trial

“Similarly, pRFD increased in both groups (p = .002) but more in COL (7.9 ± 1.3 to 10.1 ± 2.4 kN/s) than PLA (8.2 ± 2.4 to 9.6 ± 2.9 kN/s, p = .039). Therefore, hydrolyzed collagen supplementation enhanced gains in PT CSA and pRFD following 8 weeks of eccentric RE in elite female field hockey Master athletes, thus providing an effective strategy to improve physical performance in this underresearched population.”

Nulty et al. · From the abstract

Names Collagen Peptides and Vitamin C together in an interaction, co-administration, or pharmacokinetic context.

Hydrolyzed collagen supplementation prior to resistance exercise augments collagen synthesis in a dose-response manner in resistance-trained, middle-aged men.

American journal of physiology. Endocrinology and metabolism · 2024 · PMID 39259166

Randomized Controlled Trial

“Strikingly, RE alone did not increase collagen synthesis (suggesting connective tissue anabolic resistance), but ingesting 15 g HC rescued the collagen synthesis response and 30 g augmented that response further. These results were associated with the increased bioavailability of collagen amino acids in the blood, which stimulate collagen synthesis.”

Nulty et al. · From the abstract

Names Collagen Peptides and Vitamin C together in an interaction, co-administration, or pharmacokinetic context.

Limitations

What this evidence cannot tell you.

Search-based evidence indexes have real limits, and it is worth being explicit about them:

NutriStack

Track what you actually take.

NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Collagen Peptides, Vitamin C, and several hundred other substances.

The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.

NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.