Can anyone tell me how much calories I'm supposed to take in at 3 weeks post op or does it not matter some times I feel like I'm eating to much and I'm constantly hungry????

Every doctor has their own recommendations. I've heard as much as 2000 calories to as low as 500 per day. My doctor wanted me to eat about 800 calories per day.

It depends. The primary number I focus on is protein. What is your protein goal?

40 grams of protein shake and 40 grams of food today i started counting calories and have only taken 640 cal.

Do you mean you ate 80 grams of protein or 80 grams of food? Did your NUT give you a protein goal? Mine is 100 grams. Which means I need to get at least 100 grams of protein a day, every day.

80 grams of protein a day 40 in shakes and 40 in foods