I’m trying to lose weight and was told that hwo I eat about 800-1000 calories a day is too low and lowers my metobolism which will prevent weight loss. I’ve looked up some meal plans and can’t really afford stuff like chicken breast, steak, or salmon every week. So that is why I’m wondering how I can eat 1500 calories a day. Are there some alternatives that I can do?

Also I’d like to ask, say I exercise and burn say 500 calories would I have to eat those calories back or no? I ask cuz I’ve been told yes and told no.

  • Valmond@lemmy.world
    53·
    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.

    • SupraMario@lemmy.world
      57·
      4 months ago

      You have just argued that they do. You cannot magically create mass from eating less. That’s literally what you’re stating.

      • Valmond@lemmy.world
        43·
        4 months ago

        I didn’t state something along those lines, ofc you cannot gain 100gram eating only 50grams.

        Let me expmain:

        If your body gets 100 “energy” out of a burger, that doesn’t mean getting “200” energy out of a burger is against physics.

          • Valmond@lemmy.world
            1·
            4 months ago

            Dude, either you aren’t reading or understanding what I’m typing, ot you just throws parts of your random knowledge in here withput logic.

            If you want to discuss, great! But if you want to make random word salad, no thank you.

              • HappyRedditRefugee@lemm.ee
                11·
                4 months ago

                Here is a explanation:

                When you eat, your body process the food and tries to utilize it for different things (Nutrients absorpsion, muscle/fat/bone repair and creation and so on). This processes are not 100% independent and they are modulated via several ways, as an example insulin regulates(or inhibits, depends who you ask) lyposis, which is the fat burning process.

                There are a large number of ways to regulate all of this process and to some extend they all regulate each other constantly.

                Now, the yoyo effect, i.e. ganing lots of ways after finishing a diet: After your body runs in a deficit for a whiley your body is behaving as is food was scarse then, when you increase your calorie intake your body uses its enzymes, hormones and whatnot to assure that the most energy is saved, it can do this, going back to the fat example by raising your insuling levels more than usual and so, storing more energy from the same meal.

                It makes sense from a evolutionary view also, your body can’t try to store everything when your starving, since it needs the extra effort to go get food, then, when you find the food it tries to store it all and also, since it has enough you can spare some hours of letargy, i.e. why peoole get sleepy after a big meal. Also relevant, when you are in a deficit your body starts pumpling growth hormones, even tho it has nothing to grow off, but the hormone is there to kick start creation as soon as some extra energy is avaliable.

                Of course that, compunded with how normally people tent to underestimate their calorie intake is even worst. Which happens a lot.

                • SupraMario@lemmy.world
                  21·
                  4 months ago

                  Of course that, compunded with how normally people tent to underestimate their calorie intake is even worst. Which happens a lot.

                  This is literally it. It’s nothing to do with anything else you posted. People get fat or regain the weight not because they dieted and not because of some bullshit cave man theory… it’s because they go back to over eating.

                  • HappyRedditRefugee@lemm.ee
                    1·
                    3 months ago

                    Well… Is not a caveman theory… Is actually kind of a new topic in nutrition…

                    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9036397/

                    This paper even address the first law of thermodymics, which you really do not seem to understad. Bodies do not use 100% of the energy in your food, the usaged percentage is variable and what is not use you just shit, conserving the 1st law.

                    And true, people go back to eat too much, but you can’t assure that 100% of the cases of weight regain after diet are coused because of that, there are:

                    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6082688/

                    This is quite the hot topics between nutrition experts, but I’m guessing you already know that, since your seem to belive to already have analysed all possible information about this ultra-complex topic.

                    Yes, CICO works most of the time if you count well enough, but there are somw cases where your hormones will just fuck you over.

                    I really can’t tell if you’re trolling or if you reaaaaaaallyyyyy think you know what the 1st law actually means but are not capable enough to see that open systems are not bound by it in the way you think they are.

                    https://bookdown.org/asvn90/Understanding-Thermodynamics/the-first-law-for-open-systems.html

                    Take a look at chapter 5.2, it explains how the 1st law applies to open systems -like your body, in case you don’t get why I am talking about open systems-

                    In shot

                    Food = energy + shit (+others)

                    You can shit more or less, depending on how your body process food. I hope that one is simple enough for you.

                    Also: maybe is easier to understand https://www.youtube.com/watch?v=lPrjP4A_X4s