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How can I prevent vitamin B12 deficiency?

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Most people can prevent vitamin B12 deficiency by eating enough meat, poultry, seafood, dairy products, and eggs.

If you don't eat animal products, or you have a medical condition that limits how well your body absorbs nutrients, you can take vitamin B12 in a multivitamin or other supplement and foods fortified with vitamin B12.

If you choose to take vitamin B12 supplements, let your doctor know, so he or she can make sure they won't affect any medicines you're taking.

From: Vitamin B12: What to Know WebMD Medical Reference

SOURCES:

University of Florida Institute of Food and Agricultural Sciences (IFAS) Extension: "Facts About Vitamin B12."

University of Arizona’s Arizona Telemedicine Program: "Vitamin B12 Deficiency: Pernicious Anemia."

Harvard Health Publications: "Vitamin B12 Deficiency: Vegetarians, elderly may not get enough vitamin B12, says the Harvard Health Letter."

National Heart, Lung, and Blood Institute: "Pernicious Anemia."

Oregon State University’s Linus Pauling Institute: "Vitamin B12."

Kaiser Permanente: "Vitamin B12 Deficiency Anemia."

National Institutes of Health Office of Dietary Supplements: "Vitamin B12."

MedlinePlus: "Anemia -- B12 deficiency."

Reviewed by Melinda Ratini on June 8, 2019

SOURCES:

University of Florida Institute of Food and Agricultural Sciences (IFAS) Extension: "Facts About Vitamin B12."

University of Arizona’s Arizona Telemedicine Program: "Vitamin B12 Deficiency: Pernicious Anemia."

Harvard Health Publications: "Vitamin B12 Deficiency: Vegetarians, elderly may not get enough vitamin B12, says the Harvard Health Letter."

National Heart, Lung, and Blood Institute: "Pernicious Anemia."

Oregon State University’s Linus Pauling Institute: "Vitamin B12."

Kaiser Permanente: "Vitamin B12 Deficiency Anemia."

National Institutes of Health Office of Dietary Supplements: "Vitamin B12."

MedlinePlus: "Anemia -- B12 deficiency."

Reviewed by Melinda Ratini on June 8, 2019

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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