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.

  • Questions relating to general nutrition are off-topic as stated in the faq.
    – user241
    Commented Sep 20, 2012 at 5:32
  • area51.stackexchange.com/proposals/44550/nutrition
    – Kenshin
    Commented Sep 20, 2012 at 9:55
  • @Chris Nice thought, but I think it will just be a debatefest.
    – JohnP
    Commented Sep 20, 2012 at 14:59

1 Answer 1


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

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