ON (Optimum Nutrition) Serious Mass

ON (Optimum Nutrition) Serious Mass



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• Glanbia Performance Nutrition (Brand Owner)

Sold By: FitBasket

Ships From: New Delhi

Optimum Nutrition, Inc.Attn: Consumer Affairs Dept, 3500 Lancey Road, Suite 1200, Downers Grove, IL 60515 | 1-800-705-5226 |
Country of Origin: USA


ON (Optimum Nutrition) Serious Mass

Benefits of ON (Optimum Nutrition) Serious Mass:

50g of Protein per Serving of 334g
In every serving of this supplement, you get 50 grams of protein and creatine, glutamine and glutamic acid to fuel your hard working muscles and for muscle recovery.

Muscle formula enhanced with 1250 calories per serving
Along with fulfilling all of your daily protein requirement, it also gives you 1250 calories and a massive 252g of carbs per serving so that you gain dense slabs of muscle mass.


Additional Information

DIMENSIONS 16 x 9 x 9 cm kg
BRAND Optimum Nutrition
FLAVOUR Banana, Chocolate, Chocolate Peanut Butter, Strawberry, Vanilla
FORM Powder
GOAL Bulking Up


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  • ✔ Each and Every Supplement purchased from our site will come with the Hologram/MRP label of its authorized importer.
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List of Importers


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Supplement Facts

19 reviews for ON (Optimum Nutrition) Serious Mass

  1. 5 out of 5


    awesome product, help to gain weight. not that fast but it is work…buy 12lbs bag because it is cheaper than buying 2 times 6lbs one
    Really satisfied

  2. 4 out of 5


    Tasted great and mixed really well.

  3. 4 out of 5


    Serious mass is a great mass gainer. Don’t think I’ve seen another with more calories but taking the prescribed amount of powder is a huge shake. Only downfall is that it’s high in carbs and sugar. If your a hardgainer this is definitely a protein powder for you. You will lose some definition but will visibly put on the extra pounds. Mixes pretty well in shaker but does have clumps, taste great, much better with milk then water. Enjoy

  4. 4 out of 5


    Great teast especially when you mix it with ice cube and one banana and a little bit of hershey , also great price

  5. 5 out of 5


    This will probably be the greatest review on the product from somebody who properly knows their stuff and has done countless of hours of research –

    Let’s start off with the obvious – did it work? Of course it did, and so would any other product on the market work, because at the end of the day no matter the product, you’re just paying for calories in liquid form. So yes any mass gainer will work.

    Effects – I gained about 6-7KG in 2 months (1 tub and 1 bag), but that was with very intense eating, I lost 3KG after I stopped the product, which is to be expected. I noticed I gained a belly which stuck out compared to other mass gainers for example from the sister brand BSN, I haven’t noticed any enlarged stomach.

    Taste – I ordered Chocolate, and the taste was vile with water, so I always used full fat milk #extragains and the taste was more akin to a milkshake. It’s not the greatest of tasting things, but it’s acceptable and definitely better than some other products I’ve tried.

  6. 5 out of 5


    Important information – I doubt any ectomorph is going to be able to tackle this supplement in a normal serving, so don’t be fooled, by the claims of the high calories because you probably won’t be taking them in most of time. I tried full serving and to down it with and hour and a half, ended up vomiting, when I did start and whilst I was on it I did notice a lot of bad smelling gas and needing to use the toilet a bit more for the runs. Do brace yourselves for acne on your face, chest and back when using this product!

    I also wouldn’t recommend this product to anyone who isn’t working out, you could be doing harm to your body as the contents of some things are very high.

  7. 5 out of 5


    The only good and brutally honest review of my experience

  8. 5 out of 5


    Hi, am a skinny guy weighed 55 kg in feb 2020 so I decided to try this product, after a month usage I weighed my self today am at 60.5 kg,,, it’s a good produc

  9. 5 out of 5


    I thought I would give this a try and I’m satisfied to say I actually gained weight, though it kinda depends on your body metabolism. But, if you’re looking to gain some weight, go for it! ? After some research, of course.

  10. 5 out of 5

    Sreekumar M

    original product

  11. 5 out of 5


    good stuff

  12. 5 out of 5


    Authentic product received

  13. 5 out of 5


    To check authenticity of any ON product
    Call 01149594959

  14. 5 out of 5

    Mohsin Ali

    100% original product with authentication code

  15. 5 out of 5

    Mohsin Ali

    Im certified golds gym fitness trainer.. I got 100% genuine, original product by fitbasket indian….and superb delivery by fedex thanks

  16. 4 out of 5


    good product

  17. 4 out of 5


    My Opinion

  18. 5 out of 5


    I used it for many months and I used to take 2 spoons a day.
    I started gaining like 4 kgs in first week of use followed by some small increase in weight gradually.
    So I would suggest you to try this product if you are actually looking for gaining weight without putting on too much fat but dont forget to do gym during its intake otherwise it will work the same way as any other carb intake

  19. 4 out of 5


    original product

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