Dont worry yourself with calories. Make sure you are getting all your proper nutrition. Your main concern is your protein and your fluids. When i get up in the morning, the first thing i do is scramble an egg. I wait 30 minutes. Then i drink 3 oz of my protein drink. I wait 15 minutes then i drink water, 2 ozs. I wait another 15 min back to protein. I hope this helps 9 days post op