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A member asked:
Can vitamin b1 be used as an insect repellant?
6 doctors weighed in across 2 answers
Yes, sometimes: 50 mg of b1 a day can help reduce your attractiveness to fleas and mosquitoes. Studies are weak but i've seen it work for some people and it's quite safe.
Answered 4/17/2015
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Natural bug repeller: Vitamin b1, thiamine, has been reported to change the body odor making humans less appealing to insects. The minimal data is old and not well controlled, so i can not vouch for it's truth.
Answered 12/8/2015
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