assertion
Analysis v1
Strong Opposition
Collagen has special amino acids that your body uses to build and fix things like cartilage, tendons, and skin.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
This study says collagen is super important for skin, tendons, and cartilage—and collagen is made mostly of glycine, proline, hydroxyproline, and arginine, so those building blocks must be essential too.
Contradicting (1)
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Community contributions welcome
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This study looked at how L-arginine affects cartilage health in rats with a certain condition, and found it to be beneficial.