What role does B12 play in MS?
Vitamin B12 is important for neurologic function, and a deficiency can cause symptoms like numbness and tingling — which are also common MS symptoms. This overlap can sometimes make it tricky to distinguish between B12 deficiency and MS-related issues.
Research on B12 supplements for MS has Show Full Answer
What role does B12 play in MS?
Vitamin B12 is important for neurologic function, and a deficiency can cause symptoms like numbness and tingling — which are also common MS symptoms. This overlap can sometimes make it tricky to distinguish between B12 deficiency and MS-related issues.
Research on B12 supplements for MS has been inconclusive. Studies have shown conflicting results, with some suggesting B12 supplements could worsen MS symptoms and others showing potential improvement. However, there's no solid evidence proving either outcome.
Some members with MS report feeling a bit sharper mentally when taking B12, which can be a positive experience. The good news is that taking extra B12 typically won't hurt you.
Your doctor may test your vitamin levels to check for deficiencies. If you do have low B12, supplementation may help you feel better overall. It's worth discussing with your neurologist whether testing your B12 levels makes sense for your situation.
October 29, 2025
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