How much protein to eat for weight loss⁉️ I get this question a lot. That’s exactly why I made this free macronutrient calculator that will generate your calorie deficit PLUS all of your weight loss macros. Protein is the most important weight-loss macro nutrient. It is something that you should be tracking every single day in order to be maintaining in building muscle mass during your calorie deficit. The more muscle mass that you have, the better your metabolism will run. Find the link in b1o!