However, Serious Mass gainer side effects shouldn't be ignored. Serious Mass Nutrition Facts. Before coming over to the Optimum Nutrition Serious Mass review, let’s take an overview of this product. Nutrition Facts. Flavour: Vanilla Serving Size: 2 Heaping Scoops (334g) Servings per Container: 16 : Amount per Serving % RI per Serving : Energy: 5248kJ / 1261 kcal : 63 %* Fat: 4.4 g: 6 %* of which saturates : 1.3 g: 7 %* Carbohydrate: Optimum’s weight gainer Serious Mass boasts a massive 1250 calories per serving! From faster muscle growth and repair to greater energy, Serious Mass results are quite impressive. Optimum Nutrition Serious Mass (2,73 kg) Weight Gainers, Weight gainers for beginners Customer reviews and online shopping at ShopBuilder Webstore. Optimum Nutrition Serious Mass Side Effects | Livestrong.com Now if it were 1250 calories of pure junk, you’d be better off eating a tub of ice cream instead…but PLEASE don’t do that! : Calorie breakdown: 3% fat, 81% carbs, 16% protein. This carbohydrate content is delivered from maltodextrin and some naturally occurring lactose from the protein powders. There are 1250 calories in a 2 scoops serving of Optimum Nutrition Serious Mass. : Calorie breakdown: 3% fat, 81% carbs, 16% protein. : Calorie Breakdown: 3% fat, 81% carbs, 16% prot. Because with optimum nutrition serious mass side effects don’t come along but a tub ice cream does. To be specific, Serious Mass contains 1,250 calories per serving, and the powder is instantized to make it … Product Overview – Serious Mass Nutrition Facts. Optimum Nutrition Serious Mass is a premium mass gainer for the hard gainer wanting rapid results. Maltodextrin is considered a high glycemic index carbohydrate. There are 625 calories in 1 serving of Optimum Nutrition Serious Mass. Optimum Nutrition Serious Mass delivers a whopping 254 grams of carbohydrates per serve, 21 grams of which are sugars. Get full nutrition facts for other Optimum Nutrition products and all your other favorite brands. There are 375 calories in 100 g of Optimum Nutrition Serious Mass. There are 1250 calories in 2 scoops (334 g) of Optimum Nutrition Serious Mass.