Signs of Vitamin B12 Deficiency That Are Often Ignored

Vitamin B12 plays a crucial role in nerve function, red blood cell production, and brain health. When levels are low, symptoms can appear gradually and are often overlooked or mistaken for other conditions.

Common Signs and Symptoms

1. Balance and coordination problems
Because B12 is essential for nerve health, a deficiency can affect balance, coordination, and muscle strength. This may cause difficulty walking or a “wobbly” gait.

2. Memory problems and cognitive changes
Low B12 levels are linked to poor concentration, memory issues, confusion, and—in severe cases—cognitive decline or dementia.

3. Mood changes and depression
Vitamin B12 is involved in serotonin production, which regulates mood. A deficiency may lead to mood swings, irritability, anxiety, or depression.

4. Shortness of breath and dizziness
B12 deficiency can lead to anemia, reducing the blood’s ability to carry oxygen. This may cause dizziness or breathlessness, even during mild activity.

5. Glossitis (inflamed tongue)
The tongue may become sore, swollen, smooth, or red. This condition, called glossitis, can make speaking or swallowing uncomfortable.

6. Vision problems
In some cases, B12 deficiency can damage the optic nerve, leading to blurred or double vision.

7. Digestive issues

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