Age: 23

height: 5’10

weight: 173

bodyfat %: 17%

BMR at rest: 1876

BMR in motion: 2908

goal: muscle gain

training experience: 5 years

daily calories: 2892

daily macros

protein: 242g

carbs: 299g

fat:81g

I’m having some trouble determining my macros for my bulk. I calculated my daily calories and macros using the gaining muscle formula’s of Scott’s calorie and macro calculator. Should I add 125g carbs on workout days and subtract 125g carbs on rest days?

@CoolPapaO First of all, you might need more calories. I guess that might be what you're getting at with having an extra 125g carbs on workout days? Because if your BMR in motion is 2900 calories, then you should be aiming for 3150 - 3400 calories to be in a surplus. If that were the case, I would suggest something like...

Protein: 250g (1000 Calories)

Carbs: 350g (1400 Calories)

Fat: 100g (900 Calories)

Total Calories = 3300

This should put you in basically a 400 calorie surplus on workout days, and it does so without going overboard on your carbs. Carbs change from person to person - you might be able to go higher with your carbs and stay lean, so that's something you can play around with.

But on rest days, you could simply cut carbs, like you said. Keep protein and fat the same, but take carbs down to 250g.