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Optimum Nutrition Serious Mass Powder

Product Code: 60019909

  • The ULTIMATE weight gain formula
  • Add serious mass with 1250 kcal per serving
  • Supports muscle growth with 50g of protein and 250g of carbohydrates per serving
  • 25 vitamins and minerals

Regular Price: £46.99

Special Price £24.40

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Regular Price: £46.99

Special Price £24.40



Optimum Nutrition Serious Mass: the ULTIMATE in weight gain formulas. Serious Mass supplies you with the tools you need to pack on the pounds and develop the physique you've always wanted. Each servings contains 1250 calories per serving, but no added sugar. This includes 250g of carbohydrates and 50g of protein to support the growth of mass muscle.Serious Mass is a substantial weight-gain supplement that can be used to feed serious calorie needs in a variety of different ways. Between meals to maintain positive nitrogen balance and support a high calorie diet. Post Workout, 30 - 45 minutes following exercise to support maximum. Before bed, to provide nutrients to support recovering muscles throughout the night. For best results use Serious Mass combined with intense weight training (3-5 times a week) and a sensible whole foods diet.
Product Information


Maltodextrin, Protein Blend (Whey Protein Concentrate*, Calcium Caseinate*, Egg Albumen), Flavorings, Mineral Blend (Di-Potassium Phosphate, Sodium Chloride, Ferric Pryophosphate, Zinc Oxide, Copper Gluconate, Manganese Sulfate, Chromium Chloride Hexahydrate, Potassium Iodide), Whey Powder*, Medium Chain Triglycerides, Creatine Monohydrate, Color (Curcumin), Choline Bitartrate, L-Glutamine, Glutamine Peptides, Acidity Regulator (Malic Acid),, Inositol, Vitamin Blend (Dextrose Monohydrate, Ascorbic Acid, Vitamin E Acetate, Niacinamide, Biotin, Vitamin A Acetate, Calcium-D-Pantothenate, Pyridoxine Hydrochloride, Folic Acid, Cholecalciferol, Thiamin Hydrochloride, Riboflavin, Cobalamin), Sweetener (Sucralose). * From Milk Allergen Information: Contains Milk, Egg, Wheat (Gluten)


Add two heaping scoops of Serious Mass to a blender filled with 710 ml of water. Blend for 45-6 seconds. Then add a few ice cubes and, if desired, other calorie-contributing ingredients and blend for an additional 30-45 seconds.

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Optimum Nutrition Serious Mass Powder is rated 4.9 out of 5 by 14.
Rated 5 out of 5 by from It works! I've gone from 142lbs to 152.5bs in just over 4 weeks using this product combined with creatine, extra pure protein, and 4 to 5 half-hour weight training sessions per week. The results in my physique are also noticeable. And that's from just taking 75g of this product a day with 75g of pure protein mixed with water, as my existing diet is already strongly biased towards carbs. But combined, that's still much less than the suggested 334g per day of SM, and I'm still getting results! 334g per day is a lot, and you don't have to go with that volume if your stomach can't take it. Consuming less makes the process less expensive and more manageable for the stomach, especially if you are a small eater generally. Low in sugar too unlike some cheaper mass gainers I've seen on the market. Highly recommended.
Date published: 2017-02-06
Rated 5 out of 5 by from Well worth it! It costs a lot if you want to have 1 a day because it really doesn't last long however it works and is well worth spending the money on it. Tastes just like a milkshake as well and isn't too think.
Date published: 2017-03-02
Rated 5 out of 5 by from Excellent, does what it says. Tried this for 3days twice a Dayaks gained 6 pounds already, I was so surprised...didnt think it would work so fast! Will be buying again
Date published: 2016-05-08
Rated 5 out of 5 by from Does what it says on the tin I have always struggled to gain weight unless I eat non stop which leaves me feeling bloated & lethargic. I have not trained for a couple of years following a Trackday motorbike crash so I have lost size. I have been taking 2 servings a day, each is 1pt of whole Milk & 1 scoop of "Serious Mass", combined with Creatine & I have gained 9lbs in 10 days. I will continue to use" Serious Mass" until I reach my goal weight of 200lbs. Ive read reviews with people moaning that they can the scoop out of the carton.....its quite easy...fill the scoop with a spoon!!!!!!!
Date published: 2016-01-22
Rated 5 out of 5 by from Excellent product tastes great only downside is it can become expensive.
Date published: 2015-07-13
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