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I've always wanted to try a fast for 1 - 2 days (but with water!) for religious purposes, but I'm always scared it may result in a slowed metabolism or some sort of health problem.

Will a 2 day fast impact the metabolism of an otherwise healthy person? When I start eating will I begin gaining weight rapidly? What else should I be concerned about? I'm having difficulty finding a definitive answer on the net.

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closed as off topic by JohnP, xiaohouzi79, Matt Chan Sep 20 '12 at 5:31

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Questions relating to general nutrition are off-topic as stated in the faq. – Matt Chan Sep 20 '12 at 5:32
@Chris Nice thought, but I think it will just be a debatefest. – JohnP Sep 20 '12 at 14:59

It won't if you're healthy, but it would be up to a doctor to determine if you are.

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