Sick people can lose weight eating as much cheese and meat as they want as long as they don’t eat carbs… in ketosis your body literally pisses out the excess energy as ketones instead of putting it on your body as fat but go off king
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And to your point about willpower… not counting anything, just eating as much as you want to when you’re hungry (as long as it’s not carbs) is much less taxing on the willpower so it’s easier to stick to