Here we have another heavy hitter in the calorie department. Coming in second with a hefty count of 1.250 calories per serving and 50g of protein the Optimum Nutrition Serious Mass Gainer is a great option to consider if you are looking to bulk up. Features of the aforementioned include the following:
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- Whey, egg, and casein protein.
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- Gainer with protein.
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- Variety of flavor.
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- 1,250 calories per serving (50g protein, 250g carbs).
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- 25 essential vitamins.
- 12 lbs.
Optimum Nutrition Serious Mass Gainer Protein Powder
The Verdict
As the name might suggest this mass gainer is a serious contender. It is a gainer with protein which is idea for those who are looking to build the healthy lean muscles of an athlete. It combines three different protein sources to ensure you are getting the nutrients from the places you need. Whey is the most common protein source to be found in gainers and protein powders because of its lean fats. However, egg and casein are also great sources and when combined this gainer ensures that you will be getting the calories and proteins your body needs to put on muscle. Additionally, your body needs carbs in order to break down proteins properly and that is why Optimum Nutrition has added 250g per serving to their gainer as well. This combined with the twenty-five essential vitamins should make it simple for your body to feed off of the nutrients you are giving it in order to transform those calories into pure lean muscle. It comes in a twelve-pound bag to keep you from frequent trips to the store, whether physical or online.
Optimum Nutrition also offers a variety of flavors for you to choose from, so you don’t need to worry about having to flavor it yourself with fruits and a blender. Or try to force yourself to drink some flavorless powder. The added flavor will make it easier for you to simply shake this up in your bottle on the go for fast and easy in between meal snacks.

The Advantages of the Product
The major benefit this particular gainer has to offer is the variation in protein sources. Not everyone’s body breaks down protein (or any other food for that matter) at the same rate, and some people have more difficulty breaking down proteins from particular sources more than others. So, having a gainer with three different type of protein will help ensure you are getting the type that is ideal for your particular body type. This is a major benefit for those who might have had trouble putting on the weight of gaining muscles before. It might be something as simple as taking something with the wrong type of protein for your body to easily digest.Optimum Nutrition also offers a variety of flavors for you to choose from, so you don’t need to worry about having to flavor it yourself with fruits and a blender. Or try to force yourself to drink some flavorless powder. The added flavor will make it easier for you to simply shake this up in your bottle on the go for fast and easy in between meal snacks.
The Disadvantages of the Product
If you have an egg sensitivity you may want to look elsewhere. Though it is a great benefit to have several protein sources in your gainer it can definitely be a drawback for anyone who has a food sensitivity. And it doesn’t stop at the egg either, as this gainer contains artificial flavors and sweeteners as well. Again, having a flavored gainer can certainly make it much less of a pill to swallow, so to speak, but may be a deal breaker for people with sensitivities. I’m also uncertain of the source used to add maltodextrin and am inclined to believe it is likely from a wheat source as that is the most common to be found in gainers. This means it would contain gluten and not be suitable for people with celiac disease. However, if you don’t have any of these issues then the flavor could definitely be an incentive rather than a drawback.