Its about 2000 cals (500grms x 4= 2000)..a protein and a carb gram have the same cals anyway.. 1gr=4cals. So why bother feeling shitty on low carbs..? 
Shut up and eat your proteins, because that is what you need from your food. Carbs are good only for storing energy as fat in your hanging ass, so you will be fine if you avoid them. What comes to calories, only thing about them is you have to know how much you need, and eat less than that. If you eat more, you remain as fat as you are now = 65% body fat. You guys need to understand that protein really is your food, and carbs are shit which is used to garnish your meal. I go to workout early in the morning after drinking 1 x 40g protein shake, and that is enough for 1,5h intensive training. After that I drink similar shake, then lunch etc. and during the day finish one more shake. I feel fine, I broke my records week after week and I am healthy as man can be. I eat about 160-200g of protein per training day, and 140-160g for recovery between training days. Last time I was sick I had little flu in 2009, so I must have done something right
