Anywhere from 10% to 35% of your calories should come from protein. So if your needs are 2,000 calories, that’s 200 to 700 calories from protein, or 50 to 175 grams. The recommended dietary allowance to prevent deficiency for an average sedentary adult is 0.8 grams per kilogram of body weight. For example, a person who weighs 165 pounds, or 75 kilograms, should consume 60 grams of protein per day.