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Joined: Dec 1999
Posts: 396
Advanced Master Member
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I've read that too much B6 can damage nerves. As much as 10mg a day taken for months is thought likely to lead to nerve damage. I'm not sure where you read this, but I've checked multiple sources and the above information is not correct. B6 is considered relatively non-toxic. Intravenous doses of 200 mg have proved non-toxic, and daily oral doses of 100 to 300 mg have been given to alleviate drug-induced neuritis (nerve inflammation) without side effects. Side-effects from B6 are rare. However, "huge doses" of 2,000 to 6,000 mg of B6 daily can cause side-effects such as numbness in the hands and feet, in which case supplementation should be stopped if such symptoms begin to develop. Pregnant and lactating women usually will not want to take more than 100mg, while other adults can take 200 to 300mg daily (although occasional problems have been reported in this range). It's important to note that B6 increases the bioavailability of magnesium. Mercury toxic people are often deficient in magnesium. You might want to check out these references, which I use all the time: The Real Vitamin & Mineral Book Nutrition Almanac The Natural Pharmacy
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