The notorious &quot;calories in, calories out&quot; is so unscientific and is in my view a criminal oversimplification. It ignores things like epigenetics, hormones, thermogenesis, metabolic diseases, digestion problems, microbiota, etc. Yes, counting calories can give you some rough idea about things, but it&#x27;s so rough that it&#x27;s useless for the purpose of dieting! Calories from fats and carbs don&#x27;t get metabolised the same way either! When I see MDs giving such advice, I smell quackery! I cut my dietary intake by over 1,000 from fats (I was putting ghee and MCT&#x2F;coconut oil in my coffee) without actually compensating or expending less energy. I didn&#x27;t lose a gram of weight!