Optimum Nutrition Mass Gainers
Find the right Optimum Nutrition mass gainer for you
Our range of mass gainers from Optimum Nutrition is designed to fit alongside your training and goals, day after day. Whether you’re just getting started with weight training or you’ve been lifting for years, you can choose a shake that suits your lifestyle, taste and targets.
What’s in an Optimum Nutrition mass gainer?
Optimum Nutrition mass gainers are high-calorie powder blends that you mix with water or milk. They usually bring together:
- Protein blends – to sit alongside your meals and snacks
- Carbohydrates – to help you easily increase your daily calorie intake
- Added ingredients such as creatine or vitamins, depending on the product
They offer a convenient, shake-based way to increase calories when food alone can feel like a lot to manage.
Flavours and formats to fit your day
You’ll find a choice of flavours, so you can pick something you actually look forward to drinking:
- Rich and classic options like Serious Mass Chocolate 2.73kg
- Lighter, creamy picks such as Serious Mass Vanilla 2.73kg
- Fruity twists like Serious Mass Banana 2.73kg
Pack sizes can vary, so you can try a smaller tub first, then move up to a larger one once you know what works for you.
Explore more from Optimum Nutrition and beyond
If you’d like to see how other brands compare, you can browse our full range of Applied Nutrition Mass Gainers. To broaden your sports nutrition options, take a look at Optimum Nutrition Active Nutrition Supplements or explore everything from the brand in Optimum Nutrition Active Nutrition.
