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It is found naturally in animal-derived foods, such as meat, poultry, fish, eggs, and dairy products

This category groups the small molecules and peptide fragments most investigated across those pathways so researchers can compare mechanism, format and documentation in one place

PMC 3847746

Adults generally require around 1.5 micrograms per day and pregnant or breastfeeding women require up to 2.8 micrograms a day

These include: B12 levels before injection: Individuals with low B12 levels may experience a more significant and longer-lasting benefit from a B12 injection than those with normal or high levels

+ B12 is a water-soluble vitamin, which means the body excretes any excess in the urine, so the safety profile is very forgiving