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🚀 Bulk up smarter, not harder with Serious Mass!
Optimum Nutrition Serious Mass is a top-tier weight gainer delivering 1,260 calories, 50g of whey protein, and 250g+ carbs per serving, enhanced with 25 vitamins and minerals plus creatine and glutamine for muscle growth and immune support. Perfect for professionals committed to serious gains without compromise.






















| ASIN | B002DYIZPS |
| Age Range Description | Adult |
| Best Sellers Rank | #1,734 in Health & Household ( See Top 100 in Health & Household ) #2 in Sports Nutrition Weight Gainers #218 in Sales & Deals |
| Brand | Optimum Nutrition |
| Brand Name | Optimum Nutrition |
| Customer Reviews | 4.4 out of 5 stars 7,588 Reviews |
| Flavor | Banana |
| Global Trade Identification Number | 00748927028874 |
| Item Dimensions | 11.5 x 5.5 x 16 inches |
| Item Weight | 5.45 Kilograms |
| Manufacturer | Glanbia Performance Nutrition |
| Manufacturer Part Number | 1101533 |
| Material Type Free | Sugar Free |
| Model Name | Optimum Nutrition Serious Mass Weight Gainer Protein Powder Vitamin C Zinc and Vitamin D for Immune Support |
| Model Number | 1101533 |
| Net Content Volume | 13.88 Liters |
| Number of Items | 1 |
| Package Type Name | Pouch |
| Product Benefits | Immune Support |
| Protein Source | Whey |
| Recommended Uses For Product | Immune Support |
| Servings per Container | 16 |
| Total Servings Per Container | 16 |
| UPC | 748927028874 |
| Unit Count | 192.0 Ounce |
M**C
Great to reach your calorie intake
Perfect if you are trying to gain weight ( half scoop if you are a woman twice day) great flavor. You won't feel full so keep a record of what you are eating.
S**K
Great value for high quality product
Really like the banana flavor; it's the best tasting I.m.o. This product is a great deal for what it is
A**Z
Serious Mass rich in protein and vitamins that your body needs
I am very thin and I started taking this protein in smoothies and I have been able to notice the change in me apart from having a delicious flavor it has all the vitamins and probiotics I need at the same time it whets the appetite I love it I suggest them to all those who need to gain body mass
J**T
Almost perfect.
I review everything I buy. Especially what I'm putting into my body. Optimum Nutrition is a reputable company who really knows how to make a great product. I'm a hardgainer like most people who will be using this product. I use a few more supplements from Optimum Nutrition and this is by far my favorite. Besides Serious Mass, I also have Optimums Gold Standard Whey (Chocolate flavor) and Creatine. Let me start off by saying that the Whey's flavor is horrible. I don't understand why everyone raves about how good it tastes. Its distgusting. Serious Mass however does not dissapoint. If you feel the same way about the taste of other Optimum Nutrition supplements don't worry, Serious Mass tastes awesome, mixes very well in a shaker bottle, and contains exactly what im looking for in a weight gainer shake. PRO'S + Tastes great + Loaded with calories + Contains 3 different types of Protein. (Whey, Casein, and Egg Protein) + Very affordable + Easy on the stomach (Depending on the person this may be a problem if you follow the serving size. I'll get into that below) Con's - You may think getting a 12lb bag will last a long time. You couldn't be more wrong. Serving size is 2 scoops per shake. ONE SCOOP IS EQUAL TO 1 CUP OF POWDER. THAT IS ABSOLUTELY MASSIVE. Following the directions would cause to you finish a 12lb bag in 3 days. This is ridiculous. Half the serving and add your own ingredients. - Somewhat high sugar. This product does not add any sugar* However that doesnt mean it doesnt have enough already. its not very high. But its similar to a soda. ***Just to clarify for those that may not know this already. This shake is very filling. I expected this and it could be a good thing for some people but for someone who plans on taking this in conjunction with a meal, they may find it hard and feel very bloated after. Its recommended you eat normally and drink the shakes in between meals. I will be buying this product again and I would recommend it to those who want to try a great tasting weight gainer. You may need to experiment with your own add in ingredients like peanut butter or flaxseed oil to add more calories to makeup for the massive scoop size if you decide to half the serving size. All in all its a great product. I only wish they would have clarified how massive the serving size is a little more.
P**H
Gained 7 lbs in One Month
I am a 19 year old male going on 20 and am trying to gain weight and get stronger because I plan on joining the Marine Corps within a year. I started working out between 3-5 times a week doing squats, barbell curls, and benching among other things. I bought a bag of the banana flavored weight gain powder and drink it every time I work out and sometimes on off days. I use blend one scoop of the powder with 2 cups of milk and a banana. It comes to around 1000-1200 calories per drink. After only a month I had gained 7 lbs. and drastically increased my strength. I feel great and think that I look great too. My goal is to gain twenty pounds, I started out at 145 lbs and now weigh 152. My goal is to get to 165 lbs. The stuff is a chore to drink but that's how every work out powder is. I just ordered my second bag, this time I am trying the Chocolate Peanut Butter! Update to review (Forgive me for repetition or discrepancies between reviews) I have seen real results using this weight gain powder. I am training to be a Marine and I initially did not weigh enough. I am 6’2 and weighed 145 lbs. when I started working out and making these shakes. 148 lbs. is the minimum weight for my height. I set a goal to gain twenty lbs. and I reached 160 lbs. after three months. I stopped working out and drinking shakes for a while and I returned to my initial weight. I then started working out and with the shakes was able to get my weight back to 160 after about a month. I do all kinds of different workouts: running, rucking, I have back/leg day, and a chest/arm day. Core everyday and I try to workout 5 days a week, all very high intensity. I try to eat three meals a day, I’m not the healthiest eater in the world but calories are what matter when you are doing this kind of training. The MARSOC app says this blatantly, “Ideally you should eat healthy but eat anything and everything you can to get as many calories as possible. Big Macs are my best friend, each one is 500 calories. After every workout I drink a shake, what I do is I blend two cups of whole milk with one level scoop of powder, a banana, and recently I’ve started adding a teaspoon of Creatine to the shake. It ends up being about 1,200-1400 calories. I try to get between 500-1200 calories per meal. Add the shakes calories to the calories from breakfast, lunch, and dinner and you could be getting upwards of 3,000 calories in a day which is what is necessary for me to gain one lb. a week.
E**N
Good
Pretty good and the banana flavor taste good too.
P**D
Serious Mass, Serious Muscle Growth!
This banana-flavored gainer packs high calories and protein to build serious muscle size. The massive 12-pound bag delivers incredible value, immune support, and easy mixing. Highly recommended for hardgainers!
T**T
Weight Gain
Love this!!!! Bought it 3 1/2 weeks ago and I was 89 lbs I'm now at 103. I need more it's almost gone. For the first week I started with 1 scoop With milk. By week 2 I was doing 2 scoops. I'm going to have to push it up to 2 1/2 scoops per day when I get my next batch. I want to gain 25 more pounds. I am a female. It also made my chest bigger This will work great if your trying to gain weight!!!!! Worth every penny.
V**K
Gainer
Hier gibt es nicht nur Eiweiß, sondern auch reichlich Kohlenhydrate für eine schnelle Gewichtszunahme. Es schmeckt lecker und ist nicht zu teuer. Ich kann es nur empfehlen.
S**M
Great taste
I’ve used this product on and off over several years. It really is good not full of garbage like you can find in other products of a similar nature. It’s a very well trusted brand vanilla or banana is my favorite as they both taste really good. You can probably use half of the recommended serving each time and still get great results. Just stick to a really good eating plan and you’ll feel the benefits of this.
C**E
Bon produit
BIEN
K**A
Hervorragendes Proteinpulver für Masseaufbau
Ich bin sehr zufrieden mit dem Optimum Nutrition Serious Mass hochkalorischen Proteinpulver. Ich benutze es immer wieder und habe festgestellt, dass es mir am besten hilft, meine Masseaufbauziele zu erreichen. Ich habe auch andere Marken ausprobiert, aber keine hatte den gleichen Effekt wie Optimum Nutrition. Der Geschmack ist angenehm und es lässt sich gut mischen. Insgesamt ein großartiges Produkt für alle, die ernsthaft Masse aufbauen möchten.
D**O
Ottimo prodotto
Allora sta da premettere che ovviamente non sono prodotti miracolosi ma ci sono vari fattori (allenamento, alimentazione e costanza) però un idea mia e che questo prodotto serve per chi era magro che assume poche calorie quindi diciamo che è un buon sostituto. Si miscelano bene e hanno un buon sapore soprattutto la banana
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1 month ago
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