From the website National Institute of Health.org,
this is a chart of accepted Vitamin B6 doses:
this is a chart of accepted Vitamin B6 doses:
Experts from the National Institute of Health say, "High intakes of vitamin B6 from food sources is not reported to have adverse effects. However, chronic administration of 1-6 g oral pyridoxine (B6) per day for 12-40 months can cause severe and progressive sensory neuropathy characterized by ataxia (loss of control of bodily movements)".
Other symptoms are gastrointestinal, such as heartburn, nausea, loss of appetite, and abdominal pain. Skin issues, such as painful, disfiguring dermatological lesions and allergic skin reactions. Also light sensitivity. Too much Vitamin B6 has been linked to nerve damage. Imbalance of Vitamins - taking too much of one B vitamin may cause an imbalance with the other B vitamins to the point of deficiencies in the other B vitamins.
Symptoms of toxicity have been reported in people taking over 1,000 mg daily. These symptoms resolve with reduction of B6. According to the writers of Live Strong.com, "Although no studies have shown human toxicity when daily vitamin B6 intake is below 200 mg. The National Academy of Science has established a upper tolerable limit of 100 mg daily for adults."
Links
- http://ods.od.nih.gov/factsheets/VitaminB6-HealthProfessional/
- http://www.livestrong.com/article/517581-negative-effects-of-too-much-b6-vitamin/
- http://www.livestrong.com/article/546209-can-too-much-vitamin-b-cause-tingling/
- http://www.livestrong.com/article/414105-vitamin-b6-overdose-amount/
- http://www.livestrong.com/article/367247-vitamin-b1-overdose-symptoms/
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