







🚀 Serious Mass, Serious Gains: Elevate your muscle game with every scoop!
Optimum Nutrition Serious Mass is a high-calorie mass gainer powder designed for athletes and fitness enthusiasts aiming to bulk up efficiently. Each serving delivers over 1250 calories, 50 grams of protein, 250 grams of carbs, and 3 grams of creatine monohydrate, alongside 25 essential vitamins and minerals. Available in six delicious flavors, it’s the ultimate post-workout or between-meal shake to accelerate muscle growth, recovery, and performance.


| Weight | 3.18 kg |
| Units | 2730.0 gram |
| Serving Recommendation | 2 Scoops |
| Manufacturer contact | 4 Waterside, Dublin 24, Ireland |
| Brand | Optimum Nutrition |
| Format | Powder |
| Age Range Description | Adult |
| Country of origin | United Kingdom |
| Serving Size | 100 g |
| Energy (kcal) | 380.01 kcal |
| Fat | 1.4 g |
| of which: | - |
| - Saturates | 0.5 g |
| Carbohydrate | 77 g |
| of which: | - |
| - Sugars | 7.8 g |
| Protein | 15 g |
| Salt | 0.47 g |
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