A supplement called mass gainers contains both proteins and carbs. Vitamins, minerals, and creatine are occasionally included.
Why Consume Mass Gainers?
Protein is the first item that springs to mind when considering how to build muscle. But it’s crucial to understand that for muscles to work properly, they require carbohydrates. Without a proper intake of carbohydrates, muscular growth is practically impossible.
Gainers are a good source of this macronutrient, while they can also be obtained by diet.
Because there aren’t enough carbs in the diet, the muscles can’t build up their stores of muscle glycogen, which has a detrimental impact on the strength markers.
Nevertheless, taking gainers is not advised when trying to lose weight or when following low-carb diets like the ketogenic diet.
Source- https://hyperfreaknutrition.blogspot.com/2022/11/what-are-mass-gainers-why-how-to.html