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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 over 1,200 calories, 50g of whey protein, and 250g+ carbs per 2-scoop serving. Enhanced with 20+ vitamins and minerals for immune support, it’s designed for adults seeking rapid muscle growth and weight gain. Versatile for blending with calorie-dense add-ins, this 12LB chocolate-flavored tub is a top-rated, caffeine-free formula trusted by thousands to power serious results.
| ASIN | B000GIPJ0M |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #2,089 in Health & Household ( See Top 100 in Health & Household ) #2 in Sports Nutrition Weight Gainers #268 in Sales & Deals |
| Brand | Optimum Nutrition |
| Brand Name | Optimum Nutrition |
| Customer Reviews | 4.5 out of 5 stars 34,658 Reviews |
| Diet Type | Vegetarian |
| Flavor | Chocolate |
| Global Trade Identification Number | 00748927023800 |
| Item Dimensions | 11.5 x 5.5 x 16 inches |
| Item Weight | 12 pounds |
| Manufacturer | Glanbia Performance Nutrition |
| Manufacturer Part Number | 1101529 |
| Material Type Free | Caffeine Free |
| Model Name | ON SERIOUS MASS CHOCOLATE 12LB |
| Model Number | 1101529 |
| Net Content Volume | 13.88 liters |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product Benefits | Immune Support, Muscle Growth, Weight Gain |
| Protein | 50 g |
| Protein Source | Whey |
| Recommended Uses For Product | Calorie Increase, Muscle Growth, Post-Workout, Weight Gain |
| Servings per Container | 16 |
| Supplement Formulation | Multi-Supplement |
| Total Servings Per Container | 16 |
| UPC | 748927023800 748927063592 |
| Unit Count | 192 Ounce |
| Vitamins And Minerals | 0.9, 3.7, 30, 5, 700 milligrams, 100, 100, 1560, 410, 44, 59, 80 percent_daily_value_fda |
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