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🚀 Serious Mass, Serious Gains — Don’t just grow, dominate your goals!
Optimum Nutrition Serious Mass is a high-calorie weight gainer delivering 1,250 calories, 50g protein, and 250g+ carbs per serving, enriched with 25 vitamins, minerals, creatine, and glutamine. Designed for adults aiming to maximize muscle growth and weight gain, it supports immune health and recovery with a banana flavor, perfect for post-workout or between meals. Trusted by thousands, it’s your ultimate partner for serious mass-building.













| ASIN | B002DYIZPS |
| ASIN | B002DYIZPS |
| Age Range Description | Adult |
| Best Sellers Rank | #38,443 in Health & Household ( See Top 100 in Health & Household ) #26 in Sports Nutrition Weight Gainers #2,477 in Sales & Deals |
| Brand Name | Optimum Nutrition |
| Caffeine Content Description | Caffeine Free |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,201) |
| Date First Available | February 3, 2007 |
| Flavor | Banana |
| Global Trade Identification Number | 00748927028874 |
| Is Discontinued By Manufacturer | Yes |
| Item Dimensions | 11.5 x 5.5 x 16 inches |
| Item Weight | 5.45 Kilograms |
| Item model number | 1101533 |
| Manufacturer | Glanbia Performance Nutrition |
| 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 | muscle growth weight gain |
| Product Dimensions | 11.5 x 5.5 x 16 inches; 12.02 Pounds |
| Protein Source | Egg, Soy, Whey |
| Recommended Uses For Product | Muscle Growth, Post-Workout |
| Supplement Formulation | Individual Supplement |
| Total Servings Per Container | 16 |
| UPC | 748927028874 |
| Unit Count | 192.0 Ounce |
M**Q
Game Changer
Absolutely amazing for the price and taste. Highly recommend for hard weight gainers like myself.
R**Z
Awesome
Great product definitely would buy it again
D**E
Banana
The taste is very good not like the other kinds that have a chalky texture to it
H**A
Delicious and effective!
I could have sworn somewhere I read that this tasted like Nesquick's Banana Milk. It doesn't. It taste more like a liquid Laffy Taffy Banana flavor. However, once you mix some peanut butter with it, it is incredible! I have been using this product semi-regularly for bout a week, but instead of their suggested heaps I've used tablespoons and I've gained 5 pounds from it alone. I have gone from 98lbs to 103lbs. I have drank and tried many weight gain formulas and supplements but none were as easy and yummy as this. Pros: - Doesn't glob up even after sitting for awhile, this may depend on how you mix it though - It does work in helping you gain some pounds - The resealable bag and that space from the top of the bag to the actual powder so that it doesn't fly everywhere - Comes with a scooper, really helps keep the "heaps" in mind. - Details on the bag on how to increase the caloric value - I really appreciate the simple design, so many other weight gainers are bright and "loud". Cons: - Sooo much sweeter than I anticipated, throw in some peanut-butter with this flavor when you make your shake - Not spoon mixable, I really had trouble getting it to mix. You need a blender or bullet, spoon stir won't cut it. - Hard to make smooth, it'll be thick unless you add a lot more liquid than the amount you have of the powder - Avoid water, I did try a water one out of curiosity. Has a very gritty feel to it.
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.
T**F
Certainly not Arnold
Started working out seriously June 2011 & had been using the 20 Gram Protien bars from Costco. Decided to step up to this. Was a little hesitant after reading some of the one star reviews, but had tried the Banana & thought it was ok. So far I'm about 70% through my first bag, using it right after working out & still use the protein bars on off days. The flavor's fine and the powder was fresh when it arrived so no complaints at all. The only possible downside is that I burp a lot after drinking it but that could be from air being incororated into the mix in the blender. As far as mixing, I blend in one scoop at a time to prevent lumps. Also, I only get some occasional muscle soreness after a hard workout ( working 4 sets to muscle failure ) and don't know if it's because the protein in this is absorbed quickly as they claim or not. Could be but who knows. I'm also up about 8 or 9 pounds since June ( a lot for me since I stated around 150 ) so everything together seems to be working. Short version is, yes, I recomend this stuff. March 22, 2012 Update. Had my annual physical. The blood test showed Creatinine High ( above range ) and protein in my urine. Doc said "If you're 18, that's ok, But.. ) since I'm "mature" (retired) that's not a good thing, and to reduce my protein intake, which I did by 1/3. So, just as a comment to all you "mature" people, your kidneys will love you more if you take in less protein than the directions recommend, even if you're working out hard (which I am). April 17th, 2012 update: Received my second bag last week. The flavor is not the same as the first. Not anywhere near as much banana flavor. Tastes a little "flat" Code on the bag is AO88364IJ. I'm guessing that's the lot number. Expiration date is 12/13. We'll see what the next bag is like.
S**R
Good for the price
Good taste and texture
C**E
BIEN
K**A
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
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
M**K
Everything about this product is fantastic. Five stars from me!
A**O
Muy buena relación calidad-precio recomiendo su compra
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