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Mass Gainer

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Mass Gainer

Your objective: Gaining muscle mass.

Gaining muscle mass without gaining fat will not happen by chance and many factors are involved. In order to help you reach your goal, we offer products suited to your body type, whether you are prone to:

- Being thin, with a very fast metabolism: Ectomorph

- Easily developing muscle mass: Mesomorph

- Excess weight with a slow metabolism: Endomorph

Discover all our products dedicated to muscle mass gain: the Mass Gainer range. Mass Gainers were specifically designed to promote muscle development. Their formulas combining proteins and carbohydrates make them ideal to increase your muscle mass. For optimal performance, it is important to support the Mass Gainers with a balanced diet.


Decathlon offers an efficient delivery service. You can also make use of our secure online payments system and high‐quality after‐sales service.