Comment on How exactly does one eat 1500 calories a day?

• SupraMario@lemmy.world ⁨4⁩ ⁨months⁩ ago

  Store back what? That’s not how physics works. If they continue to eat only what their body needs to maintain a set weight, they’re not magically going to gain weight because their body somehow is able to violate the laws of physics.

  source

  • GissaMittJobb@lemmy.ml ⁨4⁩ ⁨months⁩ ago

    So first off, I don’t think you should bring the laws of physics into conversations of how human bodies store fat. I know it’s tempting - I’ve been there before - but it’s just too reductive to be useful in the conversation, and it leads to generally poor conclusions.

    While it’s true that energy cannot be ‘conjured from nothing’ - human bodies don’t quite work on a fixed energy in/out model. They can be variably efficient in how much energy is required to perform certain tasks, and secondary systems can be turned off when the need to conserve energy becomes apparent (leptin is the signaling mechanism for this).

    The main mechanisms that cause rebound weight gain after sharp dieting is a reduction in passive energy needs stemming from the change in leptin levels, along with leptins very strong effect on appetite.

    I suggest to you, and anyone still under the impression that CICO is a useful model for understanding human metabolism, to read the book The Hungry Brain. It’s hugely useful for gaining greater insight into the subject.

    source

    • SupraMario@lemmy.world ⁨4⁩ ⁨months⁩ ago

      So first off, I don’t think you should bring the laws of physics into conversations of how human bodies store fat. I know it’s tempting - I’ve been there before - but it’s just too reductive to be useful in the conversation, and it leads to generally poor conclusions.

      Are you suggesting our bodies are more efficient and break thermodynamics?

      While it’s true that energy cannot be ‘conjured from nothing’ - human bodies don’t quite work on a fixed energy in/out model. They can be variably efficient in how much energy is required to perform certain tasks, and secondary systems can be turned off when the need to conserve energy becomes apparent (leptin is the signaling mechanism for this).

      What secondary systems get turned off? You’re body is going to utilize energy anyway it can if it needs it, if it doesn’t it stores it, usually in the form of fat.

      The main mechanisms that cause rebound weight gain after sharp dieting is a reduction in passive energy needs stemming from the change in leptin levels, along with leptins very strong effect on appetite.

      No it’s from eating way more calories…this is literally junk science your parroting here. The rebound in weight is because someone decides to stuff themselves again.

      I suggest to you, and anyone still under the impression that CICO is a useful model for understanding human metabolism, to read the book The Hungry Brain. It’s hugely useful for gaining greater insight into the subject.

      That book is about the psychology of overeating.

      Hell here is a quote from his AMA:

      There are many ways to lose weight, but they all involve either eating fewer calories or burning more.

      www.reddit.com/r/IAmA/comments/5stv4n/…/ddhwzhf/?…

      source
  • Valmond@lemmy.world ⁨4⁩ ⁨months⁩ ago

    It’s callef the yoyo effect (that’s why you should see a nutritionist when you want to lose weight). Also recent research hints at cells becoming more efficient when there is less energy available. There is even a Kurzhesagt video about it if you are interested.

    It seems it is not so easy as calories in, calories out.

    source

    • SupraMario@lemmy.world ⁨4⁩ ⁨months⁩ ago

      No…just no. You’re arguing against literal physical laws here. Most people do not accurately count their calories and end up posting antidotal garbage that gets passed off as science.

      source

      • Valmond@lemmy.world ⁨4⁩ ⁨months⁩ ago

        Dude, cells are not using up 100% of the energy you ingest, if they did you could live off a sugar cube a year. I think it might be you that doesn’t understand how the laws of physics work lol.

        source

        • -> View More Comments
  • theluckyone@lemmy.world ⁨4⁩ ⁨months⁩ ago

    Did you miss the “when you start eating normally again” bit?

    You can rant all you want about the laws of physics, but you might want to practice your reading comprehension.

    source

    • SupraMario@lemmy.world ⁨4⁩ ⁨months⁩ ago

      Then you’re not eating normally… you’re eating more than you need.

      source

      • theluckyone@lemmy.world ⁨4⁩ ⁨months⁩ ago

        Most people don’t count calories. You said it yourself, a few posts below. Are you going to start redefining “normal” now to meet your argument?

        source

        • -> View More Comments