

🚀 Serious Mass, Serious Gains — Don’t Just Grow, Dominate!
Optimum Nutrition Serious Mass is a high-calorie weight gainer delivering 1,250 calories, 50g of blended protein, and 250g of carbohydrates per 2-scoop serving. Enhanced with creatine, glutamine, and over 25 vitamins and minerals including immune-supporting Vitamin C and Zinc, it’s designed for serious muscle growth and weight gain. Perfect for professionals balancing busy lives who want efficient, customizable nutrition to fuel their fitness goals.













| ASIN | B00GJXA2RS |
| ASIN | B00GJXA2RS |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #2,374 in Health & Household ( See Top 100 in Health & Household ) #2 in Sports Nutrition Weight Gainers #326 in Sales & Deals |
| Brand Name | Optimum Nutrition |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,275) |
| Date First Available | November 8, 2013 |
| Diet Type | Vegetarian |
| Flavor | Chocolate Peanut Butter |
| Global Trade Identification Number | 00748927051438 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions | 8.06 x 8.06 x 10.39 inches |
| Item Weight | 6 Pounds |
| Item model number | 1114117 |
| Manufacturer | Glanbia Performance Nutrition |
| Manufacturer | Glanbia Performance Nutrition |
| Manufacturer Part Number | 1050988 |
| 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 | 1114117 |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product Benefits | Immune Support, Muscle Growth, Weight Gain |
| Product Dimensions | 8.06 x 8.06 x 10.39 inches; 6 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 | 8 |
| UPC | 748927051438 |
| Unit Count | 96.0 Ounce |
| Vitamins And Minerals | 0.9, 3.7, 30, 5, 700 Milligrams, 100, 100, 1300, 44, 60, 700, 95 Milligrams |
J**H
Great taste
Great tasting product, and mixes well. This product has played a key role in the weight gain for our 15 yo son.
M**.
It Works
Getting these extra calories, protein & carbs is really helping. I don't eat breakfast at all & hardly any lunch so I'll drink 1 scoop mixed with 2% milk in place of those meals (2 scoops/1 serving per day). I'm on my 6th container having 1 serving per day & went from 179-181 lbs to 188-191 lbs (6'00") in less than a month and a half. The chocolate peanut butter is by far the best flavor, especially if you add a Tbsp of peanut butter to it. It's also definitely helping with building muscle combined with lifting. Surprisingly fast results, great taste, a little high on the sugar, but great product.
P**A
Good
Super good
T**B
flavor decent
One thing i love about this protein powder is that its filled with calories, carbs, and protein. when bulking using this is a must now the flavors could be better, No 1 the vanilla taste to me like cheesecake now cheesecake is good but im not a huge fan of cream cheese, so i got peanut butter chocolate and its drinkable for the calories i can deal with it but there arent a crazy amount of flavor choices imo
D**Z
P
Excelente
M**N
Good product
Great product. Does not make me feel bloated or sick. I got probiotics just in case but ended up not needing them. This is NOT a meal substitute. It’s best to use a blender, especially if you follow the serving size and suggested amounts of scoops. It’s thick and at first will feel like sludge. This particular flavor doesn’t really have a strong peanut butter flavor so I would add addition peanut butter. The taste is pretty good though. TIP: I drank this while eating a simple carb fruit like an apple or a pear
C**N
Muscles shrinks
for my body it doesnt suites i was looking for massgainer i have used this but no use even i was takeing strict diet and gym my biceps were shrinked to 2 cm after using this product.i was saying regarding my body .
C**S
Great taste, easy to drink
My son is extremely picky, but he actually likes the chocolate peanut butter flavor and drinks it with no issues. That alone is a big win. The scoops are huge, which likely adds to the calorie count, but so far, so good. Time will tell if it helps with weight gain, but the first hurdle—taste—was a success.
J**T
Like the flavour.
Trustpilot
1 month ago
1 month ago