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Description
Unlike oral supplements, intramuscular B12 injections bypass the digestive system and deliver immediate absorption directly into the bloodstream especially helpful for those with poor absorption or dietary restrictions (e.g., vegans or vegetarians)
In a gastric bypass, food bypasses the duodenum, the part of the small intestine responsible for absorbing iron, calcium, zinc, and several B vitamins
Nicotinamide Adenine Dinucleotide in Aging Biology
Most B12 injections deliver a high dose typically 1,000 mcg of cyanocobalamin or hydroxocobalamin directly into muscle tissue
