20 Servings. High Calorie Weight Gain Formula. The premise for R1 LBS is a simple one: to be BIG, you need to go BIG. With over 1,000 calories, a 200-gram complex carb blend, and 40 grams of protein from three types of whey, R1 LBS is large and in charge. In addition to a 5:1 carb to protein ratio, this calorie-packed formula provides added creatine, MCTs, and glutamine to help you achieve your most SIZEable aspirations.