Tell me about 'starvation mode' or metabolic slowdown

Discussion in 'Fitness & Nutrition' started by Wombats Unlimited, Apr 15, 2005.

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  1. Wombats Unlimited

    Wombats Unlimited OT Supporter

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    I always read about this 'starvation mode' we go into if we starve ourselves or if our caloric deficit is too high. How exactly does this metabolic slow down occur? If you go 6 hours hungry say during the day would you go into this mode, or does it take a few days of extreme caloric deficit or even a few weeks? I've always wondered about it because when I'm dieting/cutting I don't want to go into it if I could be eating MORE and keeping my metabolism up for better gains. So any detail/ non-technical sources would be great. :x:
     
  2. shastaisforwinners

    shastaisforwinners OT Supporter

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    starvation mode comes on from various hormone levels dropping - leptin, etc
    if you go low enough, your body starts shutting down "un-needed" functions, like your reproductive and immune system, since it is trying to conserve as much energy as possible to sustain you till you find food again.

    metabolic suppression is limited to about 30% of normal.
     
  3. Wombats Unlimited

    Wombats Unlimited OT Supporter

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    Ok, and how long does it take to onset at each level of caloric deficit? For instance does it take longer to set in if you have a caloric deficit of 700 vs 1500? How long does it take to set in generally? The metabolic slowdown.
     
  4. RenaultFreak

    RenaultFreak OMG

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    oh fawk I'd never mess with that :noes: :run:
     
  5. Ceaze

    Ceaze https://hearthis.at/DoYouEvenUplift Moderator

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    there is a chapter about this in the Rapid Fat Loss Handbook
     
  6. shastaisforwinners

    shastaisforwinners OT Supporter

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    varies depending on a lot of factors... how sensitive you are to leptin, whether you are using drugs (EC, bromo, etc), whether you were in a caloric deficit prior to this diet, the list goes on. Generally, the more severe the deficit, the more metabolism will slow. Generally takes your body a few days to adapt, even in severe deficits. Leptin levels will generall fall within 3 - 4 days, and takes a solid 2 days (or more) to raise it. That's the idea behind diet breaks and/or refeeds.

    edit: This is a vary simplified generalization of what happens, btw
     
  7. shastaisforwinners

    shastaisforwinners OT Supporter

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    yeah, read the Rapid Fat Loss Handbook and the Ulitmate Diet 2.0. Both explain this stuff in good detail, but in an easy to understand way. Recommended reading for anyone that plans on dieting.
     
  8. Wombats Unlimited

    Wombats Unlimited OT Supporter

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    Any more info I dont have this book...
     
  9. Elfling

    Elfling New Member

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    www.bodyrecomposition.org

    Good articles, good forum, just don't fuck around on the forum they're quick on the draw :p.
     
  10. shastaisforwinners

    shastaisforwinners OT Supporter

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    of course there is no reason for our bodies to do this anymore (well, maybe in Etheopia and whatnot), but physiological adaptations will take thousands, if not millions, of years before 'starvation mode' isn't an issue anymore. Of course the human race will probably be extinct by then, but stil...
     
  11. ACURA TL-S

    ACURA TL-S OT Supporter

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    mmmmmm.....sushi refeed tonight. Yummy.
     
  12. edmang

    edmang New Member

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  13. Elfling

    Elfling New Member

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  14. dank

    dank fuck yeah

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    i thought it had more to do with eating just one or two big meals a day than with a caloric deficit.
     
  15. shastaisforwinners

    shastaisforwinners OT Supporter

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    no
     
  16. AznRyda

    AznRyda キモかわいい!

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    Flexible dieting, Fat Loss book, UD 2.0 all have this info.
     
  17. AznRyda

    AznRyda キモかわいい!

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    40 pieces for me last time. Felt good

    Couldn't eat the fatty pieces though.
     
  18. dank

    dank fuck yeah

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    so your metabolism would be the same eating 1 2000 calorie meal per day vs. 5 400 calorie meals?
     
  19. AznRyda

    AznRyda キモかわいい!

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    its about the same if you eat 3 versus 6.
     
  20. dank

    dank fuck yeah

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    so why eat 6 meals?
     
  21. AznRyda

    AznRyda キモかわいい!

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    Individual reasons. People can't eat big meals. People feel better eating tons of small meals throughout the day. People are on a calorie deficit so having 6 tiny ass meals is not satisfying, etc etc.

    People worry way too much about minor stuff.
     
  22. gsteclipse97

    gsteclipse97 New Member

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    if you are dieting it helps to keep you full all day and not have cravings
     
  23. AznRyda

    AznRyda キモかわいい!

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    I guess. I was hungry yesterday, and I ate a small 200 calorie meal and it was nothing. if anything, it made me more hungry.
     
  24. dank

    dank fuck yeah

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    :rofl:

    whatever, any given question on this forum gets a random different answer each time.
     
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