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B12 offers benefits such as: reduced risk of heart disease reduced risk of stroke reduced risk of vision loss supporting neurological function healthy cell growth, repair, and reproduction mood regulation healthy digestion A person who eats meat, fish, or dairy usually gets enough B12 from their diet

Cell Signal (2019) 63:109363

Decreased cysteine and proline synthesis in parenterally fed, premature infants

While scientists historically viewed cysteine as the primary limiting factor for this process, recent research on aging and oxidative stress reveals that endogenous glycine synthesis often falls drastically short of cellular demands, making glycine the true bottleneck for antioxidant production