> It you a eat a lot of fat you will get fat too. Its all about moderation. If you eat 4000 calories of FAT everyday you will get fat
Calories-in-calories-out without considering the hormones that drive both satiety and crucially fat-storage-vs-fat-mobilization (and thus drive both how many calories are craved and how many are burned) is misguided. CICO isn't wrong, but for all practical purposes what drives CICO in real life are those hormones, which are in turn affected by the ratio of fats and carbs in diet: chiefly insulin and leptin. How those are affected by 4000kcal-of-carbs-low-fat (badly) vs 4000kcal-of-fat-no-carbs (benign/beneficially) is easy to find out.
4000kcal of fat and low carbs, if one could stomach it for years, after a few weeks of keto-adaptation? They'd be a tad little bit fatter than they'd like, and feel profusely hot and sweaty. As their leptin and insulin sensitivity gets ever-better, 4000kcal will soon become impossible to stomach, however. 4000kcal of carbs and low fat for years, just become obese and get metabolic syndrome.
> Calories-in-calories-out without considering the hormones
Your argument here boils down to: CICO is easier with a balanced diet. I don't think a reasonable person is going to argue against that.
> after a few weeks of keto-adaptation? They'd be a tad little bit fatter than they'd like
Honestly, if they could stomach it, they'd balloon up just as much as its opposite. Keto-adaptation doesn't change how your body processes fat, it just does a better job of not making a person feel ill when eating more fat in their diet.
Calories-in-calories-out without considering the hormones that drive both satiety and crucially fat-storage-vs-fat-mobilization (and thus drive both how many calories are craved and how many are burned) is misguided. CICO isn't wrong, but for all practical purposes what drives CICO in real life are those hormones, which are in turn affected by the ratio of fats and carbs in diet: chiefly insulin and leptin. How those are affected by 4000kcal-of-carbs-low-fat (badly) vs 4000kcal-of-fat-no-carbs (benign/beneficially) is easy to find out.
4000kcal of fat and low carbs, if one could stomach it for years, after a few weeks of keto-adaptation? They'd be a tad little bit fatter than they'd like, and feel profusely hot and sweaty. As their leptin and insulin sensitivity gets ever-better, 4000kcal will soon become impossible to stomach, however. 4000kcal of carbs and low fat for years, just become obese and get metabolic syndrome.