Decathlon muscle gainer:
protein powder for bulking-up

Do you weight train and are looking for a product that will help you bulk up? Discover our protein especially designed for weight gain.

Nicolas polo

Protein & dietary supplement product manager

We are always striving to improve the quality of our products, that's why we have perfected a new formula made in France that will exceed even the highest expectations! After working with a panel of testers and nutrition professionals, we are happy to announce the release of our new edition of Muscle Gainer🥳

All the quality of a home-made muscle gainer in a ready-to-use form that will help you reach your muscle and weight gain goals!

Discover all the changes we've made to our new version.

Decathlon muscle gainer: why a new formula?

Our new products are part of our strategy to offer more natural sports nutrition options. We particularly focus on the origin of raw materials, more natural products and a shortened ingredient list.

Plus, following much feedback, we wanted to rework the product to meets your needs: a gainer with a healthy source of carbohydrates and natural flavours, but without any creatine. That's why our new Muscle Gainer has been tested and approved by a panel of sports users via our Decathlon co-creation platform.

The chocolate flavour of our MUSCLE GAINER received an overall rating of 4.2/5 from our testers. The chocolate flavour satisfied 92% of the testers' expectations, the recipe/nutritional value have been judged to be 98% effective and finally, 86% deemed it to be a natural product.

Decathlon muscle gainer: what has changed in the new formula?

1/ Premium-quality ingredients made in france

To ensure the quality of our Muscle Gainer, we decided to use a healthy source of carbohydrates: we replaced the white sugar, dextrose or maltodextrin with rolled oats.

We are still using whey protein concentrate but have opted for GRASS FED quality protein. This label guarantees that the cows that supplied the milk spent 120 to 300 days on pasture every year, therefore ensuring that they are fed mostly grass or hay. We also chose natural flavouring for our chocolate and vanilla gainers.

This means that you will find a fairly short list of ingredients in our Muscle Gainer formula: whey protein concentrate, rolled oat flour, cocoa powder, natural chocolate flavouring and vitamins B6 and B9.

Muscle gainer is a complete, high-calorie snack (389kcal/shaker) that is easy to drink and transport. It can help you reach all your bulking and weight gain goals.

2/ A single gainer instead of 2

Say goodbye to mass gainer 3 and mass gainer 7. We decided to only offer one gainer, without any creatine, so that you can choose whether or not to add creatine to your shaker.

You will find all the necessary ingredients and macronutrients for bulking up in your new Muscle Gainer:

Nutritional table: 100g (Per shake)
Energy: 389 kcal / 1643 Kj
Fats: 5.9 g of which saturates: 2.1 g
Carbohydrates: 45 g of which sugar: 8.1 g
Protein: 36 g

3/ New sizes, new packaging

More than just our formula has been updated, our packaging has too! We decided to replace our jars with doypacks that have a lower impact on the environment (one-fifth of the environmental impact of a plastic jar).

Available sizes:
700 g (chocolate),
1.5 kg (chocolate & vanilla),
2.5 kg (chocolate & vanilla).