Signs of Vitamin B12 Deficiency That Are Easy to Ignore
Vitamin B12 deficiency can develop gradually, so its symptoms are sometimes mistaken for normal aging, stress, or tiredness. If untreated, deficiency can affect the blood, nerves, and brain.
8 signs to watch for
- Unusual tiredness or weakness — B12 deficiency can cause anemia.
- Numbness or tingling — especially in the hands or feet.
- Balance or walking problems — nerve damage can affect coordination.
- Memory or concentration changes — confusion, forgetfulness, or slower thinking can occur.
- Mood changes — depression or irritability may sometimes be associated with deficiency.
- Pale skin or dizziness — particularly when anemia is present.
- A sore, smooth, red tongue — called glossitis.
- Loss of appetite or unexplained weight loss — digestive symptoms can occur as well.
Who is more likely to be deficient?
Risk can be higher in older adults, people who eat little or no animal-derived food, and people with conditions or medicines that interfere with B12 absorption. Some diabetes and acid-reducing medicines can also affect B12 absorption over time.
Don’t simply assume it’s B12
These symptoms can have many other causes. A healthcare professional can order blood tests to determine whether B12 deficiency is actually present and investigate the underlying cause.
