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Dietary deficiency versus malabsorption When low intake is the suspected cause Diet-related deficiency can occur when a person does not regularly obtain enough vitamin B12 from food or fortified products
B12 is an essential nutrient involved in proper functioning of blood cells, nerves and many other critical processes in the body
The FDA uses these categories as frameworks for substances used in pharmacy compounding, and it may move peptides from one category to another as safety data changes
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