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The enzyme methionine synthase needs methylcobalamin as a cofactor
Researchers are studying its possible role in metabolic signaling, cellular stress responses, insulin sensitivity, exercise adaptation, and energy regulation
High IGF-1 levels, often caused by exogenous HGH use, can increase cancer risk, water retention, and insulin resistance
These include: Vegetarians and Vegans : Since B12 is primarily found in animal products, those who follow plant-based diets may be at a higher risk of deficiency
Rapid entry into the bloodstream Once injected, vitamin B12 enters the bloodstream quickly
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