Collagen Content

    Last Updated: August 16, 2022

    Collagen is the main structural protein of the human body and makes up 25% to 30% of the body’s proteins in the forms of skin and hair, connective tissue, and bones. It contains the amino acids, glycine, proline, hydroxyproline, and arginine.

    examine-databaseExamine Database
    179 participants in 2 trials

    Examine Database: Collagen Content

    Vitamin A
    C
    Small Increase
    Vitamin D
    D
    No effect
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    Examine Database References

    1. Vitamin D - McAlindon T, LaValley M, Schneider E, Nuite M, Lee JY, Price LL, Lo G, Dawson-Hughes BEffect of vitamin D supplementation on progression of knee pain and cartilage volume loss in patients with symptomatic osteoarthritis: a randomized controlled trialJAMA.(2013 Jan 9)
    2. Vitamin A - Kafi R, Kwak HS, Schumacher WE, Cho S, Hanft VN, Hamilton TA, King AL, Neal JD, Varani J, Fisher GJ, Voorhees JJ, Kang SImprovement of naturally aged skin with vitamin A (retinol)Arch Dermatol.(2007 May)