Low-Calorie Gainers are for those who normally don't have much difficulty in gaining the extra muscle mass when they wanted to.
Low-Calorie Gainers tend to have the same amount of protein as High-Calorie Gainers in 1 serving, however, has about only half the calories compared to High-Calorie Gainers. They are more expensive compared to High-Calorie Gainers because of the much higher protein count in the entire bottle.
Light-Calorie Gainers are fantastic post-workout shakes for those who feel that their muscle-building quest are plateauing, which is a very common situation which many can relate to.