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doi:10.1159/000053183 Heffernan MA, Thorburn AW, Fam B, et al
Should I purchase a smaller bottle
Understanding Vitamin B12 Vitamin B12 is a water-soluble vitamin that occurs naturally in animal products like meat, fish, dairy, and eggs
Knowing what supplements and medications you currently take ensures there are no contraindications
Unlike others, the absorption of vitamin B12 depends on a protein called intrinsic factor, which is produced in the stomach
Low vitamin B12 levels are more common among those who: If youre experiencing troubling symptoms or believe youre at high risk for a deficiency, raise these concerns with a healthcare provider, who may decide that you should be tested
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