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💥 Bulk up smart, train hard, and never miss a rep!
Optimum Nutrition Serious Mass is a high-calorie mass gainer protein powder designed for athletes and professionals aiming to increase muscle size and weight. Each serving delivers over 1,250 calories, 50 grams of protein, 250 grams of carbohydrates, and 3 grams of creatine monohydrate, along with 25 essential vitamins and minerals. Available in a delicious strawberry flavor, it’s a convenient, nutrient-rich formula tailored for intense training recovery and muscle growth.














| Asin | B0001FSWMM |
| Country Of Origin | United Kingdom |
| Guaranteed Software Updates Until | unknown |
| Is Discontinued By Manufacturer | No |
| Item Model Number | 1031917 |
| Manufacturer | OPTIG |
| Product Dimensions | 29.21 x 13.97 x 40.64 cm; 5.45 kg |
User
Good
It's helping me put on weight. I added a tablespoon of peanut butter and a banana, tastes really good with the strawberry one. This seems to be the best mass gainer, I've looked around and this is always said to be the best with approved ingredients. It is sweet tasting but if you add some peanut butter it will tone down the sweetness.I'm just doing pushups, ab crutches, planks and dumbbells. I don't go to a gym. With noticeable growth to my arms and chest, just started working on abs to balance it out. I only started to see results after drinking this stuff.Good price on this bigger bag so I think I'll get this one again in the future.
User
Best mass gainer for taste and texture
Best tasting best mixing best mass gainer IMO. After years of trying diff mass gainers out I always come back to this one. Tried most flavours but my favourites are strawberry, choc peanut butter and banana. Gotta love it
User
Excellent for Weight and Mass Gain
This protein powder is an excellent for anyone serious about gaining mass. The large size offers fantastic value, and the mix is effective and potent. It mixes well, taste good and is essential for hitting those high-calorie and high-protein goals. Highly recommended for fast, reliable results!
User
It does the thing...
Having ordered these for just short of a year now, I thought i might post my findings for anyone considering this product...Pros:. At 620 kcals per half serving and just over 20g of protein, it makes an excellent post-workout shake or even a meal replacement if you arestruggling to meet those calorie goals during a busy day.. Achieves its purpose if used as part of a balanced (ish) diet.. At the time i found this product as one of the better bargains when compared to other products (but it has been a year since then, if it ain't broke).Pons... Cros?. Whilst initially a struggle to consume due to it being vastly thicker than a standard shake, it became significantly easier as i got used to it and i nowquite enjoy them.Cons:. Not for those who wish to gain that extra bit of weight or mass cleanly, as there is 75.3g of carbs per 100g, and at a full 334g serving that really begins to add up.. Personally, I found that it can make you relatively nauseous if taken earlier in the day, I.E. when haven't eaten as much and it doesn't settleproperly in the stomach.Overall, i am happy with this purchase and when taken in half servings it helped me to achieve my own goals over the last year.
User
Hard gainer? Look no further!
Worked a treat!I wouldn't recommend strawberry, i started out on chocolate and it was just about right for my taste buds, although a little thick i eventually grew to enjoy it (or tolerate depending how i felt).I struggled to put weight on in the past, BUT this was my own fault, i was only 8.5 stone and was 5"10 tall and never took the gym serious which always made me doubt growing in size.I will say this, i used the MyFitnessPal app on android to calorie count, i set a goal of 11 stone and tracked every bit of food i ate, i then used serious mass to help meet or exceed my daily calorie goals. I kept to this strict routine for a few months and saw myself growing exponentially! I also cut down on heavy cardio and lifted light with long reps at first and now i am lifting heavy with shorter reps and i can definitely see an improvement.The reason i write this is because i always considered myself a hard gainer, but after actually putting in the extra effort at the gym and with the calorie counter app (and not just taking the weight gainer hoping for the best) i am now 10.2st which is just muscle mass.Also as a side note:- You may grow a bit of a pot belly, since i have stopped using the gainer i have managed to lose the belly and keep the mass, i might be sensitive to lactose but i'll keep this here as a heads up.- I only used one scoop a day to meet my calorie goals (sometimes two) but i made it my best effort to NEVER miss a day of taking the mass gainer and stuck to my routine.
User
Perfect
Good quality
User
It’s a must buy ! Best & high quality mass gainer! Imo the best out there
I only use this brand of mass gainer… reason being it sits will in my digestive system, it definitely does what it supposed to do. I have used other brands, cheaper brands but they do not pack the punch this do 💪 I have literally been buying this for over 10 years now & will never use other cheaper products. Yes it’s expensive but quality costs money simple! It mix fairly well. The ingredients are of high quality. In my opinion you will not be disappointed & like I said you will definitely be getting the performance you want. I packed on good quality weight… 2st in 3 months but that’s training 5 days a week keeping meals healthy. Hope you find this review helpful.
User
Good taste, strawberry flavour
I'm struggling to gain weight very bad, I'm 1.80 meters tall and 30 yrs old and my metabolism is crazy, I put hard weight and is fair to say I dont eat too much as well, just 2 meals a day, sometimes only one but I've decided to change that and after reading alot of reviews of top mass gainers, I have decided to try this one.So I ordered myself the strawberry 5 kg bag along with a blender and I'm following the next plan:I am spliting the serving in 2: one in the morning and one in the evening before work.I put 350 ml whole milk, 1 full cup of proteins(~170 grams), 2 big spoons of peanut butter, I'm adding 5 more grams of creatine , 50 grams of oats and 1 banana for flavouring and must say the taste is amazing and the vascosity is not too high, is drinkable. Have managed to drink it whole after 20 mins after breakfast.This combination will give you around 1200 calories per shake, so 1200 calories in the morning and 1200 calories in the evening. Thats 2400 calories just from the shakers!For meals I will try to eat as many eggs in the morning with a salad and for dinner one piece of chicken breast with potatoes and salad.Inbetween meals I will eat 2 snickers, 2 kinder bueno bars and 1 croissant 7 days.By my maths, with the shake combination and meals and snacks, I will have around 4000 calories per day intake, my goal is to get 10 kg in 1 month and 10 days.Today is day 1 and I weigh 64 kg, will update you next week on my current weight!
User
It helps a lot
Optimum Nutrition Serious Mass is a great choice for anyone looking to gain weight, build muscle, or increase overall calorie intake. The Chocolate flavor mixes smoothly—especially if you use a blender—and has a rich, dessert-like taste without being overly sweet.Each serving delivers a very high amount of calories, protein, and carbs, which makes it ideal for people with fast metabolisms or those who struggle to eat enough throughout the day. It also includes added vitamins, minerals, and creatine for extra support.The bag is large and lasts a good amount of time depending on how much you use. The powder is heavy, so mixing by hand can be a bit difficult, but blending solves that problem easily.Overall, Serious Mass is effective for healthy weight gain and muscle-building goals. If you need a calorie boost and don’t mind a thick shake, it’s a solid and reliable product.
User
fragola
Bel sapore , e prodotto ottimo per la mass
User
..
Sehr gut
User
Ürün delik geldi kargoda hasar görmüş
Bana patlak geldi ürü
User
Très bon produit
très bien, le gout est pas trop mal fait
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