> Why multiply by physical activity level? I was describing how TDEE is calculated. I wasn't telling you to multiple TDEE by something, TDEE has that multiplic

> Why multiply by physical activity level? I was describing how TDEE is calculated. I wasn't telling you to multiple TDEE by something, TDEE has that multiplication built right in. If you look at any TDEE calculator (of which there are hundreds) they'll ask you your PAL e.g.: https://tdeecalculator.net https://tdeecalculator.net More info on the PAL here: https://en.wikipedia.org/wiki/Physical_activity_level https://en.wikipedia.org/wiki/Physical_activity_level > Calorie density is the only thing I'd add to your recommendations. I've seen more people successfully lose weight by NOT changing WHAT they eat than I have completely upending their diets and burning out. Then they return to their original diets and gaining it all back. As long as you eat below your TDEE, you can eat whatever you want. If you want to only eat microwave mini-pizza, you do you. You can still lose weight that way even if it is objectively not healthy. Volume eating may be a useful tool, but that's all it is, a tool. You cannot rely on volume to stay on the path.