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🚀 Bulk Up, Power On, and Own Your Gains!
Optimum Nutrition Serious Mass is a high-calorie weight gainer delivering 1,260 calories, 50g of whey protein, and over 250g of carbohydrates per serving. Enhanced with 25 vitamins and minerals including immune-supporting Vitamin C, Zinc, and Vitamin D, it’s designed for adults aiming to increase muscle mass and overall weight. Ideal for post-workout recovery and daily calorie surplus, this vanilla-flavored powder blends easily and supports serious bulking goals with trusted quality.













| ASIN | B000GIPJ02 |
| ASIN | B000GIPJ02 |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #1,290 in Health & Household ( See Top 100 in Health & Household ) #1 in Sports Nutrition Weight Gainers #147 in Sales & Deals |
| Brand Name | Optimum Nutrition |
| Caffeine Content Description | Caffeine Free |
| Customer Reviews | 4.5 4.5 out of 5 stars (19,540) |
| Date First Available | May 27, 2004 |
| Department | GNC|ALL|ALL|NUTRITIONAL SUPPLEMENTS |
| Diet Type | Vegetarian |
| Flavor | Vanilla |
| Is Discontinued By Manufacturer | Yes |
| Item Dimensions | 11.5 x 5.5 x 16 inches |
| Item Weight | 192 Ounces |
| Item model number | 1031920 |
| Manufacturer | Glanbia Performance Nutrition |
| Manufacturer | Glanbia Performance Nutrition |
| Manufacturer Part Number | 1031920 |
| Material Type Free | Caffeine Free |
| Model Name | Optimum Nutrition Serious Mass Weight Gainer Protein Powder Vitamin C Zinc and Vitamin D for Immune Support |
| Model Number | 1031920 |
| Net Content Volume | 13.88 Liters |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product Benefits | Immune Support, Muscle Growth, Weight Gain |
| Product Dimensions | 11.5 x 5.5 x 16 inches; 12 Pounds |
| Protein | 50 Grams |
| Protein Source | Whey |
| Recommended Uses For Product | Calorie Increase, Muscle Growth, Post-Workout, Weight Gain |
| Supplement Formulation | Multi-Supplement |
| Total Servings Per Container | 16.0 |
| UPC | 748927023824 |
| Unit Count | 192.0 Ounce |
| Vitamins And Minerals | 0.9, 3.0, 30.0, 5.0, 700.0 Milligrams, 100, 100, 28, 63, 80 Percent Daily Value |
C**Y
Highly recommend for anyone looking to bulk up effectively! 💪
This is my 5th time buying Optimum Nutrition Serious Mass, and it continues to deliver great results. It has really helped me maintain a steady calorie surplus and support my weight gain goals. The taste is consistent, it blends well (especially in a smoothie), and I like that it includes added vitamins like Vitamin C and Zinc. I’ve seen noticeable improvements in my weight and muscle size when using it consistently with workouts.
A**A
Great Weight Gainer, Quality Product.
I purchased this item for my father, as he was looking to gain weight. We've used this brand before, and he's liked the taste, as well as the overall feel of it, so we decided to give it a shot. This powder is easy to use and incorporate into a daily diet. It's also packed with vitamins and protein, which is a nice bonus. The quality is also excellent. It dissolved easily in a shake, and also digests well. The texture is a little rough, though balanced and not too chunky when thoroughly incorporated, and overall, it is great. At $50 for 6 pounds, it's a bit pricey, but quality doesn't come cheap. I would recommend this product.
J**U
Tastes better than expected and mixes easily
I've been using this protein shake for about a couple of weeks now, and overall I’m really satisfied with it. I usually take it after workouts or sometimes as a quick meal replacement, and it’s been working well for me.
L**O
energy level 100%
Since I started using this, I’ve noticed better energy during workouts and less soreness afterward. It’s become part of my daily routine. Great product for anyone looking to support their fitness goals — highly recommend!
R**L
Have used this since 2021
I’ve been using this protein for years. Overall, with powerlifting and this, I’ve put on about 50 lbs. Recently I’ve lost 5 lbs due to nursing school (exhausted, less money, very busy). I have been trying different protein powders which I also liked, but after seeing the weight on the scale today, I’m back. I prefer the vanilla, because it can go in more smoothies or you can buy multiple coffee syrup flavors and add them to change it up. This time I’ll be having vanilla and brown sugar cinnamon. Excited to be working towards my goal of 150 lbs again now that I’m about to get my life back lol
J**N
A Perfect Duo for Gaining Muscle Mass!
I am on a journey to increase my muscle mass and decided to combine two powerhouse supplements - Top Shelf King Maker and Optimum Nutrition Serious Mass. The results have been nothing short of incredible, and I can't recommend this combo enough to fellow fitness enthusiasts! The supp to combine with ON's serious Mass is Top Shelf King Maker ... it is an anabolic supplement for men to increase lean muscle growth and it certainly lives up to the claim. Its carefully crafted blend of ingredients is specifically designed to promote lean muscle development, and I've experienced remarkable gains in a short period of time. With King Maker, I felt an increase in strength and endurance, which helped me push harder during my workouts. Optimum Nutrition Serious Mass, on the other hand, is a renowned mass gainer that provides a substantial calorie and protein boost. It's a perfect complement to Top Shelf King Maker, as it offers the essential fuel my body needs for muscle growth. This supplement helped me hit my daily calorie and protein targets with ease, ensuring that I never fell short on the nutrients required to pack on muscle. The combination of these two products has been next level for me. Not only have I seen noticeable increases in muscle size and definition, but I've also experienced faster recovery times between workouts. This means I can hit the gym more frequently and maintain a consistent workout routine, which is crucial for muscle growth. One concern that some may have with mass gainers is the potential for unwanted fat gain. However, by using Top Shelf King Maker alongside Serious Mass, I've been able to maintain a lean physique while still adding mass. This is a testament to the targeted approach of King Maker in promoting lean muscle gains. In conclusion, if you're serious about gaining muscle mass and you want to do it the right way, the combination of Top Shelf King Maker and Optimum Nutrition Serious Mass is a winning strategy. These two supplements work in harmony to help you achieve your muscle-building goals, and the results are simply outstanding. I've never been more satisfied with my progress, and I owe a big part of it to this dynamic duo. Give it a try, and you won't be disappointed!
K**S
Weight Gain
Great Quality, Good Buy
V**P
Optimum Nutrition
I'm try to gain weight so seen many positive reviews. But everyone is different in body chemistry. I took the advice of several reviews and started with 1/2 a portion, I put the milk in a large glass then poured the powder in & used my blender stick. It was very smooth & tasted like a melted vanilla milkshake & was so sweet, I had to force myself just to drink the half mixture. It is very sweet & filling. Tried it for 3 days & was so filling it was difficult to eat any food. So I stopped & took a break & will try 1/4 a recipe until I can stretch my stomach. I cant possible imagine drinking a full recipe without throwing up. It is supper sweet.
D**R
With weight training and a very physical job I need a ton of calories (around 4000 a day) this mass gainer definitely helps, I find it tastes better with semi skimmed milk than water, and totals more calories consumed with 2 servings. The scoop is quite bigger, larger than what you'd used you put detergent in your washing machine, and the dose is 2 a day, you could just have one after a workout, but I have one at work around 10-11am which helps feel a gap well and being a shame is easier than food or snacks. I got the vanilla one, it tastes a tad different to the normal whey protein by ON, sweeter maybe but after a first few tries it's fairly nice, I don't use a blender just a shaker ball, and about 600ml of milk, it does a clump a bit and needs several shakes between a few swigs. Put the milk or water in first (this is common knowledge) but try and shake it hard/drink quick after dropping the powder in as the longer it fits the more it'll clump at the bottom and it's not fun trying to consume the gloop at the bottom, messy. Or just don't be lazy like my and blend it, might come out better.
A**E
using this one for years now. for me it works perfect. am even mixing it sometime with fresh fruits to make a smoothy.
K**G
Het is alsinds lekker en zeker effectief aangezien ik toch wat extra kilo’s erbij heb gekregen
F**L
Inhaltsstoffe und Nährwert: Das Proteinpulver bietet eine umfassende Mischung für den Masseaufbau. Jede Portion enthält eine hohe Anzahl von Kalorien, was besonders für den gezielten Masseaufbau wichtig ist. Zusätzlich sind 25 Vitamine und Mineralien enthalten, die zur allgemeinen Gesundheit und Unterstützung während intensiver Trainingsphasen beitragen. Das Pulver enthält sowohl Kreatin als auch Glutamin, die die Muskelregeneration und das Muskelwachstum fördern. Geschmack: Der Vanillegeschmack des Pulvers ist angenehm und nicht zu süß. Es ist unkompliziert zu mischen und ergibt einen cremigen Shake, der gut schmeckt und sich leicht trinken lässt. Für diejenigen, die häufiger Proteinshakes konsumieren, ist der Geschmack besonders wichtig, und Serious Mass enttäuscht hier nicht. Anwendung und Dosierung: Die Packung enthält ausreichend Pulver für 8 Portionen, was bei regelmäßiger Anwendung für eine gute Weile reicht. Die Dosierungsanweisungen sind klar und einfach zu befolgen. Ich finde es besonders praktisch, dass das Pulver sich leicht in Wasser oder Milch auflösen lässt und keine Klumpen bildet. Wirkung: Ich habe festgestellt, dass die regelmäßige Einnahme von Serious Mass positive Auswirkungen auf meinen Masseaufbau hat. Durch die hohe Kalorienanzahl pro Portion konnte ich mein Kalorienziel leichter erreichen und die zusätzlichen Vitamine und Mineralien haben meine allgemeine Gesundheit unterstützt. Kreatin und Glutamin haben zur besseren Muskelregeneration beigetragen, sodass ich mich schneller von intensiven Trainings erholen konnte. Verpackung: Die Verpackung des Proteinpulvers ist robust und praktisch. Sie lässt sich gut verschließen, um das Pulver frisch zu halten. Die Informationen auf der Verpackung sind übersichtlich und gut verständlich. Fazit: Optimum Nutrition Serious Mass ist eine hervorragende Wahl für alle, die gezielt Masse aufbauen möchten. Die hochkalorische Mischung mit 25 Vitaminen und Mineralien sowie Kreatin und Glutamin bietet eine umfassende Unterstützung für intensives Training und Masseaufbau. Der angenehme Vanillegeschmack und die einfache Anwendung machen dieses Produkt besonders empfehlenswert. Ich bin sehr zufrieden mit diesem Proteinpulver und kann es jedem uneingeschränkt empfehlen, der auf der Suche nach einem wirksamen und schmackhaften Masseaufbauprodukt ist.
C**O
Che dire? Dopo aver provato molti prodotti di diverse marche, mi sono convinto che era arrivato il momento di testare le 'Serious Mass' della Optimum Nutrition. Mi alleno 6g su 7 la settimana, le prendo tutti i giorni perché a livello calorico ti riempiono la giornata e ti permettono di allenarti nella maniera più consona. Il gusto vaniglia è perfetto se lo si mischia con il latte, o facendo dei frullati, inoltre dentro la scatola si trova il misurino per dosare bene il contenuto. Subito dopo la prima settimana si vedevano i risultati prefissati, aumento di massa muscolare ben visibile, il mio corpo aveva ripreso brillantezza. Al momento il miglior prodotto che offre il mercato.
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