B12 Deficiency?

Although anyone can develop vitamin B12 deficiency, certain groups have a higher risk.

Older Adults

As people age, changes in stomach acid production can make it more difficult for the body to absorb vitamin B12 from food.

People Following Vegan Diets

Vitamin B12 occurs naturally mainly in animal-based foods.

People following a strict vegan diet may therefore be at increased risk if they do not regularly consume fortified foods or take an appropriate supplement.

People With Digestive Disorders

Certain digestive conditions can interfere with the absorption of vitamin B12.

Examples include:

• Celiac disease
• Crohn’s disease
• Certain stomach disorders

People Who Have Had Certain Surgeries

Some stomach or intestinal surgeries can interfere with the body’s ability to absorb vitamin B12.

People Taking Certain Medications

Long-term use of some medications, including metformin and certain acid-reducing medicines, may affect vitamin B12 absorption in some people.

People should not stop prescribed medication