BlainSA that’s partially true, but with keto (n=1), i can eat more calories than on a high carb diet and lose more weight. calories in-calories out is a good guide, but it’s not the entire picture
and when it comes to fasting, it’s unquestionably easier for me when my carbs are low, i just don’t get hungry and my blood sugar is significantly more stable. it also depends on how your body processes carbs. i did blood sugar testing for several months (baseline, 1 hr post meal, and 3 hours post meal) and i discovered that i can handle bread significantly better than potatoes, as one example. my wife is the opposite, so it’s never a one size fits all solution or strategy.