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They are usually safe but can cause problems for some people

Methionine, in turn, is required for the synthesis of S-adenosylmethionine (SAMe), a methyl group donor used in many biological methylation reactions, including the methylation of a number of sites within DNA and RNA

On its own, B12 is a powerful nutrient that accomplishes several important tasks in your body, including: Most of the B12 we get is through our diet and it exists in animal foods like fish, chicken, eggs, and dairy products

Animal vs

A person with borderline deficiency will certainly reach the ideal level faster than someone with pernicious anemia or severe malabsorption

A genuine medical treatment is prescribed to fix a diagnosed deficiency, not just to give you a temporary pick-me-up