Gainers from manufacturer Activlab is a category of sports nutrition products that are high in nutrients, mainly carbohydrates and proteins, all in different ratios. This ensures that the resulting blend is high in energy and is therefore a great way to supplement or increase caloric intake. Using gainers is especially suitable for people who want to cover the high energy requirements of a physically demanding lifestyle or strenuous trainings. Alternatively, they can be used as a means to gain body weight. However, using them is also suitable for athletes who want to accelerate regeneration and build muscle mass.