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Meier JJ, Gallwitz B, Siepmann N, et al
It also regulates matrix metalloproteinases to reduce excess collagen breakdown
Unlike other vitamins the body does not synthesize B12 on its own, on the contrary, it obtains the vitamin from animal sources such as red meat, fish, milk, and eggs
The effect of vitamin B12 on the levels of soluble sulfhydryl compounds in blood
