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Pernicious anaemia An autoimmune condition that causes your immune system to attack the cells in your stomach that produce the intrinsic factor, which means your body is unable to absorb vitamin B12
Aging: As people age, the ability of the stomach to produce stomach acid and intrinsic factors may decrease, which can affect the absorption of vitamin B12
Certificate of Analysis (COA) for Every Batch A Certificate of Analysis (COA) is a document that verifies a compounds identity, purity, and batch quality through independent laboratory testing
First, What Does NAD Stand For
Drawbacks: Injections require a visit to a healthcare professional, can be uncomfortable, and are often more expensive than supplements