Okay, I was just going over a diet (another that I wont go through with *sigh*) and got to thinking...
Well, most people calculate macro ratios...that is, they will have a percentage of their total calories from each of the three major macronutrients. On top of that, many people eat different amounts of food on different days. For example, more cals on training days then non-training days, etc.
However, why do we need to vary things like fat and protein based off of our caloric increases? Protein and fat are not primary sources of energy (not so much dietary fat anyway), so why should we vary it?
What I'm saying is, should we just base our protein and fat intakes off of our LBM, and let carbs take care of the rest of the cal intake, and let it be the only macro that varies on a day to day basis.
For example, say I need 3200kcal to cut on workout days, and 2700 on non-workout days. I'll give my body .65g/kg of fat and 3.3g/kg of protein on both types of days. However, I'll vary the carbs.
So, no matter what day of the week it is, for protein and fat we'll have this:
100kg* 3.3g protein/kg = 330g protein
100kg* 0.65g fat/kg = 65g fat
That's a consistent 1905 calories day to day.
This would mean that I have different cal requirments left over from day to day, which can be filled with carbs. So, I would need 324g carbs on a training day and on a non-training day I'll need 198g carbs.
Makes sense to me, and it would actually make eating much easier for me. I hate changing fat and protein intake.