Optimum Nutrition Serious Mass 2727g Chocolate Peanut Butter

One serving of Optimum Nutrition Serious Mass in Chocolate Peanut Butter flavor, prepared with water, provides approximately 1250 to 1270 calories and 50 grams of protein.
Additionally, one serving prepared with water contains over 250 grams of carbohydrates (often between 249g and 253g), 4-6 grams of fat, and a blend of 25 vitamins and minerals.

Optimum Nutrition Serious Mass Weight Gainer in Chocolate Peanut Butter flavor contains creatine monohydrate and L-glutamine. One serving also contains vitamins A, C, D, E, thiamin, riboflavin, niacin, and folic acid.

Optimum Nutrition Serious Mass is ideally recommended to be consumed at three different times to effectively support calorie intake. Taking it between meals helps maintain a positive nitrogen balance and supports a high-calorie diet in everyday life. After a workout, the shake contributes to rapid recovery and replenishes glycogen stores, while a serving before bed provides the body with essential nutrients for muscle growth overnight. New users should adjust the dosage at the beginning to allow their bodies to adapt to the high calorie density. It is recommended to start with half a serving daily (one scoop) during the first week and gradually increase the amount to a full serving or several servings per day only after an adjustment period.

Yes, Optimum Nutrition Serious Mass Weight Gainer is suitable for vegetarians. The protein blend used consists of whey protein concentrate, calcium caseinate, and egg white (egg albumen). The composition can vary depending on the region and specific product batch. Modern formulations often rely on whey protein, casein, and milk isolate, while older or specific versions may also contain egg albumen. The product is also classified as lacto-vegetarian.