Nutrition Breakdown

  • Calories per serving: 1250
    •  252 g carb
    • 50 g protein
    • 3.5 g fat
  • Other
    • 27% DV cholesterol
    • 10% DV saturated fat
    • 23 g sugar
  • Bonus
    • Creatine Monohydrate
    • Vitamins and Minerals

ON Serious Mass is by far the most popular mass gainer supplement on the market today — and with good reason. For those who need add a lot of calories to their daily intake, say no more, ON serious mass delivers with an absolutely massive 1250 calories per serving.

The carb-to-protein ratio is about 5:1 which is quite high, so make sure to adjust your remaining food calorie breakdown accordingly. Amazingly, the ON Serious Mass only has 3.5 g of fat per serving, making it one of the lowest fat weight gainers on the market. It is also fairly low in cholesterol and saturated fats.

High mixability and universally liked taste makes consuming these calories a pleasure instead of a chalky / chunky hassle.  ON Serious mass also has added creatine monohydrate, which is a muscle building supplement that has robust scientific evidence for bodybuilding. On top of that, this supplement has nearly all your daily requirements for micronutrients (vitamins and minerals)

While chocolate is the standard, ON Serious Mass gainer comes in variety of other flavors such as vanilla, banana, and strawberry.

At about $47 for a 12 pound bag on, this is one of cheapest and fastest ways you can get a quality 1250 calories into your body.