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Anonymous
Protip kids: You can lose fat without a deficit. If you rebalance your diet to be 50% protein, 30% fat, 20% carbs, and put carbs in the morning and fats at night, then you can low fat while you sleep due to low insulin levels. During exercise, anywhere from 10-40% of calories expended come from fat directly, and the same applies during the day. If you need 2500 calories per day (exercise factored into there already), and 15% of the calories your body use come from fat throughout the entire expenditure of those 2500, then it breaks down like this:
Exercise and living burns 375 calories from fat, but you consumed 750 calories from dietary fat through the day. So you might think 475 calories of fat are left in you to be stored! Then again, 20% for carbs makes you have only have 500 calories from carbs on hand for everything else. So that's 945 calories you have total left to expend that your body wants to get from carbs alone, but takes it from fat because it has no choice. But your body needs 1250 more calories to live, and it can't get it from fat nor carbs! So it turns to the protein, after using it for its primary purpose of supporting muscle life. Instantly, your body will try to convert protein to usable energy, but it's shown to be very very inefficient at it. Thus you have a natural caloric deficiency already just by eating maintenance calories, and thus nearly the entirety of it will come from fat, some from muscle too, but a good deal of it from fat. And this is assuming your metabolism sucks and you can only burn 15% from fat!
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