But, after surgery, the demands for protein are much higher, especially if you have incisions to repair. Aim to get 1.5 to 2.0 grams of protein per kilogram. For example, if you weigh 150 pounds, target 102 to 136 grams of protein per day. Thatâs 25-30 grams per 3 meals and 14-23 grams per 2 snacks.