Category: Vitamin safety

According to a 2025 report from the Brain Foundation, all documented cases of vitamin B6 toxicity have been linked to dietary supplements, not food sources. Excessive intake, usually from high-dose supplements, can lead to serious health problems, particularly affecting the nervous system.

While B vitamins are often praised for boosting energy, prolonged intake of excessive vitamin B6 can cause serious, sometimes irreversible, nerve damage. This critical finding prompts a closer look at whether megadoses of B vitamins are safe for general use and which specific vitamins pose the greatest risks.