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Oral Supplements: These are easy to take at home but require daily intake for consistent results

B12 shots may help you get more red blood cells, reduce symptoms like weakness and fatigue, and give enhanced benefits compared to oral vitamins

Because the body cannot make B12 on its own, it has to come from food (meat, fish, eggs, dairy) or from supplements

Find out how and when to take it so your body gets the most from it

Antibiotic exposure postweaning disrupts the neurochemistry and function of enteric neurons mediating colonic motor activity (in Eng)

People with Leber hereditary optic neuropathy should not receive cyanocobalamin