Optimum Nutrition Serious Mass is a high-calorie weight gainer designed to support muscle building and weight gain. Each serving provides up to 1,260 calories, 50 grams of whey protein concentrate, 250–253 grams of carbohydrates, and 5 grams of creatine monohydrate.
Additionally, it delivers 8 grams of naturally occurring glutamine and 11 grams of branched-chain amino acids (BCAAs) per serving. The formula also includes 19 essential vitamins and minerals to support overall health.
This product is ideal for individuals with high metabolic rates or those struggling to consume sufficient calories through whole foods alone. It is available in multiple flavors and is recommended to be mixed with cold water, milk, or another beverage for a rich and effective weight-gainer shake.
Long-time Serious Mass user. I use it as a meal replacement for days when my schedule is jam packed and getting lunch is not an option. Tastes great. Quells my hunger and keeps my muscles fed.
Taste really good and it’s very easy to mix and it’s defiantly working the texture is also good and very nice and smooth once mixed and it’s definitely worth its value
super amazing omg i need another one rn i just finished mine!!! it helped me create muscle mass very healthily since i don’t gain weight easy. its great and it lasted so long. tastes yummy like cake!!