How fasting or changing the amount of food that you eat, tampers with your metabolism?
In: Biology
It doesn’t. Starvation mode and metabolism slowing is bullshit either by marketing, false wives tales, or an excuse that fat people use to shirk responsibility. It can for the most part be a simple matter of tdee (total daily energy expenditure). Assuming you have no conditions that would actually affect your metabolism. Your body uses a certain amount of calories based on your age, activity level, body mass, and body composition. If you eat less than your tdee, you will lose weight. And since your weight contributes to your tdee, it goes down as well.
If you go to more extreme cases of eating less, you may reduce neat (non exercise activity thermogenesis) basically fidgeting around and moving. This may impact your tdee negatively but it’s not your metabolism slowing, its your body unconsciously adapting to reduced calorie intake.
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