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[–]ReeferMadness 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (3 children)

Your resting metabolism is dependent on how healthy you are, so an active person's resting metabolism burns more in the 22 hours of non exercise than the 2 hours of exercise. But an inactive person's metabolism is much much slower. Starving yourself is a lot harder than exercising. People who crash diet always put the weight back on.

[–][deleted] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (2 children)

But an inactive person's metabolism is much much slower.

That's a myth. You can't make your metabolism more or less efficient unfortunately. The whole page is relevant in that link but for convenience I just c&p'ed one passage:

That increased calorie burn lasts as long as your workout. You might keep burning extra calories for an hour or so after that, but the aftereffects of exercise stop there. Once you stop moving, your metabolism will go back to its resting rate.

People who crash diet always put the weight back on.

Yup, and not just crash diets. The majority of people put back on the weight. The only way it sticks is if you make a lifelong change and that's not easy. I lost 49lbs a couple years ago and spent last year mostly putting it on again. It's frustrating.

[–]ReeferMadness 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (1 child)

So will building more muscle not boost your metabolism? Yes, but only by a small amount.

Then they go on to contradict themselves.

I'm not going to go find the paper, but studies have shown that the mitochondria of active people is very different than that of sedentary people. In sedentary people the mitochondria are clumped together and each cell has far fewer of them. They simply can not produce the same amount of ATP.

The article you are citing is the unscientific opinion of the author, who is confusing the difference in resting and exercising metabolic rate of the same person with the difference of resting rates of two different people.

I simply can't trust the opinion of someone who claims this is a myth because when you stop exercising your metabolism returns to its resting rate. That is simply not sound logic. Of course it returns to the resting rate, but that has nothing to do with how your resting rate compares to someone else who is in completely different shape than you.

[–][deleted] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

It supports what I experienced personally and other people's experiences in a few weight loss subreddits. I logged a whole year of dieting and my BMR changed very predictably based on my current weight and additional calories expended did not affect the BMR as far as I could tell.