Nutrition Diet: What are the sources of type 4 collagen?
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4 min read
Over 90% of the body's collagen is type I, II, or III, but the less common type IV performs a critical function within basement membranes, the specialized extracellular matrix that supports cells. This raises a common question: **What are the sources of type 4 collagen?** The surprising answer is that you cannot get it directly from your diet, as your body produces its own.
