Price: $83.99 - $74.00
(as of Sep 30, 2025 06:35:41 UTC – Details)
More calories. More protein. More carbs. SERIOUS MASS by Optimum Nutrition serves up 1,260 calories, 50g of blended protein, and over 250g of carbohydrates per serving to help you maximize your daily caloric intake – the ideal post-workout and between meals shake for sizing up your goals. SERIOUS MASS provides you with more tools to help you pack on pounds, when taken in addition to normal calorie intake and over time with regular resistance training. Calories per gram: Fat 9, Carbohydrate 4, Protein 4.
Is Discontinued By Manufacturer : Yes
Product Dimensions : 11.5 x 5.5 x 16 inches; 12 Pounds
Item model number : 1031920
Department : GNC|ALL|ALL|NUTRITIONAL SUPPLEMENTS
Date First Available : May 27, 2004
Manufacturer : Glanbia Performance Nutrition
ASIN : B000GIPJ02
Best Sellers Rank: #2,599 in Health & Household (See Top 100 in Health & Household) #2 in Sports Nutrition Weight Gainers #362 in Sales & Deals
Customer Reviews: 4.5 4.5 out of 5 stars 39,372 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Packaging may vary – New look, with the same trusted Quality!
Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
High Calorie Weight Gainer: 1,250 Calories per 2-Scoop Serving
50 Grams of Protein per Serving
Over 250 Grams of Carbohydrates per Serving
25 Vitamins & Minerals Plus Creatine & Glutamine
Using an Electric Blender to Add Fresh or Frozen Fruits, Peanut Butter, Nuts & Other Calorie Dense Foods to Boost Your Weight Gain Potential
Customers say
Customers find this protein powder effective for muscle growth and recovery, helping them gain up to 15 pounds of solid muscle. The product receives positive feedback for its taste, quality, and value for money, with customers noting it works well as a meal replacement. The mixability receives mixed reviews – while some say it blends well without clumps, others find it very hard to mix properly. The serving size is also mixed, with customers appreciating the 16 servings per container but finding the 12-pound bag size too large.