If you have good insulin sensitivity and low insulin secretion, odds are you will do well with a traditional bodybuilding type of diet which means high protein, highish carbs and low fat. Let’s say you’re consuming 1 g/lb of protein at 12 cal/lb. That’s 33% protein. If you go to 1.5 g/lb, that’s 50% protein. That leaves you with 50-67% of your calories to allocate between fat and carbohydrate. 15-20% dietary fat is about the lower limit as it becomes impossible to get sufficient essential fatty acids below that intake level. So, at 1 g/lb, your diet will be roughly 33% protein, 47-52% carbs (call it 45-50%) and 15-20% fat. If protein goes to 50% of the total, carbs should come down to 35% of the total with 15% fat.
If you’re not insulin sensitive and/or have high insulin secretion, a diet lower in carbs and higher in fat (don’t forget that protein can raise insulin as well) is a better choice. Assuming, again, 40% protein, a good starting place might be 40% protein, 20-30% carbs and 20-30% fat. A further shift to a near ketogenic (or cyclical ketogenic) diet may be necessary, 40% protein, 10-20% carbs and the remainder fat may be the most effective. If protein is set higher, up to 50% protein, carbs would be set at 10-20% with the remainder (20-30%) coming from dietary fat.