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Selectivity was reported against COMT and against the SAM-dependent DNA and protein methyltransferases DNMT1 and PRMT3
For years, oral supplements represented the standard approach to addressing B12 insufficiency
Vitamin B12 injections are also used by people with impaired vitamin B12 absorption or deficiency called Pernicious anaemia caused by: Inadequate dietary intake of B12 Loss of gastric parietal cells in chronic atrophic gastritis Structural damage or surgical resection of the small intestine or stomach Long-term use of acid regulating medication Alcoholism Gastric banding surgery Celiacs disease Pernicious anaemia Crohns disease Until now, injection of methyl-B12 has required a needle
Nutrition Focus on a balanced, whole-food diet that includes lean proteins, healthy fats, and complex carbohydrates
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