763 calories per serving55 g of protein per serving Size is an advantage in many sports, but some athletes have a hard time gaining weight. You can only eat so much food, so we formulated Gold Standard Gainer with quality calories in a 2:1 ratio of carbohydrates to proteins. Each serving helps you grow bigger and stronger when taken in conjunction with a diet and exercise program. With high quality protein and complex carbs from oats and starch from pea and potato, Gold Standard Gainer raises the bar for weight gain performance.