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IF - Catabolic state or HGH release

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  • #16
    Originally posted by otzi View Post
    ...hunger hormones are in the 'feed me now' state early in the morning.
    Perhaps what we're interpreting as "feed me now" actually meant "go hunt now" to them...?

    Just a thought.

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    • #17
      Originally posted by otzi View Post
      left some supper to be eaten in the morning...leftovers if you will.
      I like the concept also, cuz I IF most days until lunch time. But quite a few things dont need refrigeration. (fruit, nuts, veggies, etc.) A number of those do need to be cooked some how though, like eggs. And I don't how long we have had fire, but baked goods were still okay back in the day, as were fresh ground grains for this or that, right? Maybe that isnt far enough back though.
      Last edited by gopintos; 08-22-2012, 02:46 PM.
      65lbs gone and counting!!

      Fat 2 Fit - One Woman's Journey

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      • #18
        Originally posted by ChocoTaco369 View Post
        If our metabolism slowed down with intermittent fasting, we would have died off as a species eons ago.
        Can you clarify why that is? The first thought that comes to mind is that slower metabolisms = survival for longer periods since you're subsisting on your own fat for longer. Or does the destruction of your organs cause too many problems for that to work well?
        My chocolatey Primal journey

        Unusual food recipes (plus chocolate) blog

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        • #19
          Originally posted by DeeDub View Post
          Perhaps what we're interpreting as "feed me now" actually meant "go hunt now" to them...?

          Just a thought.
          Probably both, if you have leftovers it makes sense to eat them ASAP before they spoil (except in cold climates). If you don't have leftovers it makes sense to hunt.
          Ye shall know them by their fruits.

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          • #20
            Originally posted by gopintos View Post
            I like the concept also, cuz I IF most days until lunch time. But quite a few things dont need refrigeration. (fruit, nuts, veggies, etc.) A number of those do need to be cooked some how though, like eggs. And I don't how long we have had fire, but baked goods were still okay back in the day, as were fresh ground grains for this or that, right? Maybe that isnt far enough back though.
            You cook eggs? Just kidding, me, too. We are all so far removed from our ancestors it's hard to say what they did. Seems like if you got up at the crack of dawn, in the cold air, you'd want to eat something to get your metabolism cranking for the hard day ahead. We sleep in late, get up to a warm house, take a hot shower, and worry about when and what to eat for breakfast.

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            • #21
              From what I've read it is likely that through bipedalism & sweating ability it is likely that we specialised as "Persistance Hunters" in Africa, as the San Bushman are:
              Human Mammal, Human Hunter - Attenborough - Life of Mammals - BBC - YouTube

              This activity would likely have taken place around the middle of the day when it is hotest, this is when herbivores are most vulnerable to heat stroke and seek shelter, where as Humans with greater cooling abilities could continue a high level of activity.

              So this suggests that more often than not we remained hungry until after midday, we may have nibbled on some scraps but nothing substantial, there was a marathon to run so a full belly would be a disadvantage, so once the hunt was done, there would be a small feed of blood and delicacies as the carcase was butchered and then taken back to camp for the feast which would most likely be mid to late afternoon, that's the Hunters (men) cycle.

              While this was going on the Gatherers (women & children) would have also gone out at mid morning to catch small prey, gather fruits, berries, tubers, insects etc. but theirs would be a more leisurely process, they would nibble as they gathered, basically grazing, here a grub, there a berry etc. and then they would bring their haul back. They would instinctively ensure that they had eaten something and that their children were fed because if the men returned without meat, failed hunt, then the men would claim priority to food and the women and their children may well go hungry.

              So this may also be an evolutionary factor in the different responses to IF, where men generally seem to have less issues going 24 hours, but more women lean towards the 16/8 protocol.
              Our circadian cycles seem to lean in this direction too where our body temp ramps up from a low at around 4am to daily max from about 10am to 4-6pm. I have tried to find some data regarding circadian cycles in digestion, but info is scant, there seems to be a general consensus that there are three stages:
              Cleansing - 4am to 12pm,
              Digestion - 12pm to 8pm,
              Assimilation - 8pm to 4am
              I'm not sure if this was established from purely cultural observations of health as I have not been able to locate any specific scientific data to verify this.
              Last edited by Omni; 08-22-2012, 04:58 PM.
              "There are no short cuts to enlightenment, the journey is the destination, you have to walk this path alone"

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              • #22
                Originally posted by Omni View Post
                From what I've read it is likely ...
                I loved reading all that. Thanks for taking the time to write it out.
                65lbs gone and counting!!

                Fat 2 Fit - One Woman's Journey

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                • #23
                  Thank you all for responding! It helped a lot!

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                  • #24
                    I do IF but its not very long usually skipping breakfast and eating at 12. I cant go any longer. This whole 1 meal a day thing seems MUCH to little for a 200 lb male unless your really able to eat 2000 calories in one meal. Ive done 2 meals with a shake but could never manage 1 meal. Arent you people hungry? lol.

                    I think IF is a great way to lose some pounds.

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                    • #25
                      Originally posted by sakura_girl View Post
                      Can you clarify why that is? The first thought that comes to mind is that slower metabolisms = survival for longer periods since you're subsisting on your own fat for longer. Or does the destruction of your organs cause too many problems for that to work well?
                      A low metabolic rate could be advantageous at times - like a long walk in cold weather. But it's also going to mean you won't be able to run as fast, jump as high or throw as far. What good is a downregulated metabolic rate when you're hungry in the middle of the summer because you missed a meal? If you're hungry, it stands to reason that you're going to need to run FASTER to catch your food.

                      And that's the dichotomy - when you're fasted (a day or so), it makes more sense to me that you'd be able to run faster to catch your meal. You're hungry! But if you haven't eaten for 4-5 days, now you're starving - then to me, it makes more sense to have a downregulated metabolism to preserve your fat stores, and you should be in "gather" mode instead of "hunt" mode.

                      At least that makes sense to me. I'm not saying I'm correct, but this is what seems logical in my mind. I can tell you right now, I can run a lot faster and lift a lot harder if I'm hungry. I max out around ~12-16 hours without food, and I'm sluggish if I were to go to the gym a few hours after a significant meal.
                      Last edited by ChocoTaco369; 08-23-2012, 06:15 AM.
                      Don't put your trust in anyone on this forum, including me. You are the key to your own success.

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                      • #26
                        Omni that is very interesting, thanks for posting that. At the moment i am intermittent fasting on a 20:4 ratio. i usually eat from 8pm to 12am. would you recommend i change that to 4-8pm? or would it eating 8pm-12am just shift the cycle.
                        (By the way, that video is incredible, everyone should check it out if they haven't)
                        Last edited by Lukey; 08-23-2012, 06:56 AM.

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                        • #27
                          Originally posted by stumprrp View Post
                          Arent you people hungry? lol.
                          When your eating nutrient dense meals, you feel full/not hungry for longer. Its also much easier when your a "fat burning beast".

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                          • #28
                            1 pound of meat, probably a pound of veggies, and some fruit and im still hungry a few hours later lol. IMO eating healthier im hungrier more often then when i ate shit. This is why i added some carbos to the mix too.

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                            • #29
                              Well, its also been said that it just isn't for some people. sounds like you may be one of them. LOL.

                              I do 20ish(sometimes 24)hour fasts 2-3 times a week but for the most part I'm 16/18 with 2 meals. I love going to Krav Maga on a 20+hour fast. something about it makes me hit harder and move faster.

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                              • #30
                                I do IF but its not very long usually skipping breakfast and eating at 12. I cant go any longer. This whole 1 meal a day thing seems MUCH to little for a 200 lb male unless your really able to eat 2000 calories in one meal. Ive done 2 meals with a shake but could never manage 1 meal. Arent you people hungry? lol.
                                I've eaten plenty of 3500 calorie meals. And I'm only 5'9" and 172 pounds now. But I do know how it feels to be full enough to have to stop eating. It's happened to me TWICE so far in my life. So now I actually believe people who say they can't eat that much. But, physiologically, most people can fill their stomach with up to a gallon of fluid, or similar volume of food.
                                Crohn's, doing SCD

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