pernicious anemia how often b12 injections Vitamin B12 Deficiency - Harvard

Studied for effects on glucose tolerance and insulin response in preclinical models of metabolic syndrome

Older adults are also at a higher risk of B12 deficiency due to decreased stomach acid levels, which are needed to separate B12 from protein in the diet for absorption

Biotin may help some people, especially when low nutrient intake or increased B vitamin demand is a concern

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Vitamin B12 Deficiency Is Rare The liver can store excess vitamin B12, and only trace amounts are lost through daily bodily functions such as urination, perspiration, and defecation

If you do not see blood, then youre good to inject