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Experimental Fat Loss's avatar

I think what destroys your metabolism is not the "yo-yo" shape, it's starving yourself down.

In short, your body can only access so much body fat per day. If you're overweight, almost by definition that's somehow inhibited, or you wouldn't have become overweight.

Say your body can only get at 800kcal/day.

So when you try to drastically get into a deficit of e.g. 1,500kcal/day, only 800 of those are going to be made up by body fat - by definition, cause you can't get to more than that.

The rest your body will either have to get from burning lean mass like muscle, or by saving on expenditure. This can result in infamous symptoms like feeling cold all the time, reduced immune function (=getting sick), lethargy, inability to concentrate.. basically, your body running on low-energy mode to survive.

When you then go back up to a "normal" amount of energy, your body will go back into full power mode and you might gain more than you starved off to begin with.

This is all obviously bad and I'd avoid it if possible.

Since I (almost) never intentionally restrict calories, I don't think my experiments have this effect. I mostly switch between different ways of eating ad-libitum to satiety.

I have confirmed this various ways by measuring my metabolic rate, e.g. via RMR (resting metabolic rate) and DLW (doubly-labeled water). My metabolic rate is right where it's supposed to be.

Sounds like you've experienced exactly the phenomenon I've described above.

Since my diets are all ad-libitum energy, I wouldn't expect this to happen to you. That said, when I go back on high protein diets I gain fat very rapidly still, just like I did before. So it's not the case either that you can just do one of these diets for 6 months and then go back to normal eating w/o regaining weight.

If you want to try a diet, I'd pick either high-carb/low-fat (potato/rice diet) or low-fat/high-carb (cream diet). Depending on which one sounds better to you haha.

Try to stick to 80%+ of that macro (carbs or fat), and 10% or less protein.

E.g. here is a description of what I eat on ex150: https://www.exfatloss.com/p/ex150-diet-macros-2294kcal-88-fat

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John Lawrence Aspden's avatar

> when I go back on high protein diets I gain fat very rapidly still

Have you checked this recently? Sounds like your non-24 is good and gone. Actually fixed rather than 'in remission'. It would be interesting if protein/swamp adventures brought it or the hyperphagia back, wouldn't it?

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Experimental Fat Loss's avatar

The hyperphagia was def still there. Would I gain 20lbs if I kept doing the high protein for a month or two? I haven't tested that.

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