In rare cases, vitamin B12 deficiency can affect your vision. Damage to the optic nerve (optic neuropathy) can result in blurred or double vision, sensitivity to light, or visual disturbances. Though uncommon, this effect is a warning sign that your deficiency is becoming severe.
Who’s at Risk?
Certain groups are more likely to suffer from vitamin B12 deficiency, including:
People over 60 (due to reduced stomach acid production)
Vegans and vegetarians (B12 is mostly found in animal products)
Individuals with digestive disorders (like Crohn’s or celiac disease)
People taking certain medications (like metformin or acid reducers)
What You Can Do
If you’re suffering from any of the above symptoms—especially if you fall into one of the higher-risk categories—it’s a good idea to talk to your healthcare provider. A simple bl00d test can check your vitamin B12 levels.
Final Thoughts
Vitamin B12 might not get as much attention as other nutrients, but its impact on your body and mind is significant.
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