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Can taking vitamin B-complex cause insomnia in some people

I've noticed when I take vitamin B complex-50 in the morning I have trouble sleeping that night. If I don't take it, I sleep better. Is this just a coincidence?
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Avatar universal
Not if you don't think it is.  You know your body better than anyone else.
Avatar universal
yes me too. we have the same situation. when i take b complex i cant sleep at night. if i didnt take it i can sleep well. so i wont take it anymore.
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