Macros

Set them any way you want. If you don't know what you want them to be, at least start with the default. You don't even have to track macros if you don't want to, or have any compelling reasons, like health concern or fitness goals. You lose weight when you stick to the calorie goal MFP gave you.

https://community.myfitnesspal.com/en/discussion/819055/setting-your-calorie-and-macro-targets/p1