Calories in Snow Crab Legs. *Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. Some of these foods were entered by users and are subject to error.
If you want to gain body weight, you need to consume more calories than you burn. One pound of body weight is roughly equivalent to 3500 calories, so eating an extra 500 calories per day will cause you to gain one pound a week.
Then, you used that information to adjust your estimated calorie maintenance level and figure out exactly how many calories you need to eat per day to build muscle (or just gain weight in general). After that, you learned what the ideal rate of weight gain is for you and this new ideal calorie intake of yours.