Vitamin B6 supports many body processes, including protein metabolism and nerve health. However, taking higher doses over months or years, especially from multiple supplements that add up, has been linked in various reports to peripheral neuropathy.
This can show up as tingling, burning, numbness, or a “pins and needles” feeling that often starts in the feet and moves up the legs. In some cases, it contributes to muscle weakness or difficulty with balance and walking. Health authorities have noted that even doses once considered moderate can lead to these sensations in sensitive individuals when used long-term.
Why this happens: Excess B6 can affect sensory nerves, and the symptoms sometimes resemble those of B6 deficiency itself, making it tricky to spot without guidance. Many multivitamins, energy formulas, or magnesium blends include B6, so totals can quietly add up.
2. Vitamin A – Too Much Can Affect Bones and Muscles Indirectly
