blurred or double vision due to nerve damage.
10. Digestive problems
A B12 deficiency can cause digestive problems such as nausea, diarrhea, constipation, or loss of appetite.
- Heart palpitations
People with B12 deficiency may experience palpitations or rapid heartbeat. This is associated with anemia caused by low B12 levels, which impairs the blood’s ability to carry oxygen.
Who is at risk for B12 deficiency?
Older adults: B12 absorption decreases with age.
Vegans and vegetarians: B12 is found primarily in animal products, so those who avoid meat, dairy,
and eggs may
