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Optimum Nutrition Serious Mass

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Optimum Nutrition Serious Mass

55 (0 reviews)  
Sale + 5 free ON samples with purchase
Sale + 5 free ON samples with purchase
Sale + 5 free ON samples with purchase
Sale + 5 free ON samples with purchase
Sale + 5 free ON samples with purchase
Sale + 5 free ON samples with purchase
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RRP $109.95
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before 12pm
on all orders over $300
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on orders over $99


Serious Mass is a muscle-building weight-gainer containing 1,250 calories per serve with a range of amino acids, vitamins, minerals, MCTs and 50 grams of protein per serve. This Serious Mass Gainer may be taken post-workout to enhance recovery or between meals to boost your calorie and protein intake.


Product Features

  • 1,250 Calorie per Serve!
  • Premium Protein Blend.
  • Medium Chain Triglycerides.
  • with Glutamine and Creatine.
  • Vitamins and Minerals.



Serious Mass Facts

Serious Mass is designed for those who have difficulty putting on weight or keeping weight on: the hard gainer. If this sounds familiar, don't despair. This calorie-loaded mass gainer is a great way to pack away extra calories and protein each day with ease. Serious Mass Gainer contains 50 grams of protein per serve from a blend of fast-acting and slow-release sources. This allows for a rapid response, yet with a prolonged release of amino acids into muscle.


Combined with a massive 250g carbs to fuel muscles, restore glycogen and enhance nutrient delivery, this product will have you stacking on kilograms in no time. The powerful nutrients glutamine and creatine offer the means to rebuild glycogen and ATP that much faster, supporting explosive strength, power and stamina, and the means to build muscle mass faster.

serious mass gainer

Serious Mass Calories

This product provides 1,640 calories per serve when consumed with low fat milk, these are simple and convenient calories that taste simply amazing. No one questions the nutritional authority of whey protein, which is why it's the first ingredient used in this product.


Whey protein is loaded with naturally occurring essential amino acids, which are potent stimulators of muscle protein synthesis. Protein synthesis is the creation of new muscle tissue protiens. This means more gains for you. Whey protein is particularly high in an essential amino acid called leucine. Leucine is a stimulator of mTOR, which is the spark that ignites muscle protein synthesis.  


Whether you're a novice or professional, Serious Mass Gainer will get you to your goal weight faster. You should notice some strength gains along the way too.


Does Optimum Nutrition Serious Mass Work?

Does a hammer work? It does if you use it properly. Serious Mass delivers quality protein with plenty of calories. If your goal is to gain size, strength or power, without necessarily having to stay lean, this product delivers premium nutritional support to help you steadily work towards this goal. The trick is to use this product consistently, every day, in addition to a quality diet and exercise program. And perhaps the most important point to remember is to not reduce your food intake when using this product. People who have extreme difficuly gaining weight may even find that they can still stay lean whilst using this product, gaining lean muscle mass only.


How to Use Serious Mass

Add 2 heaped scoops into a large shaker or blender with aprroximately 700ml water, milk or low fat milk. Mix or blend and consume.


ON shaker bottleWhen to Take Optimum Nutrition Serious Mass

ON Serious Mass may be taken between meals or after exercise. For mass gaining programs, you may like to try taking a 1/2 to 1 serving in water, 1/2-1 hour before exercise.


Is Optimum Nutrition Serious Mass Safe?

It is always a great idea to check with your healthcare practitioner before beginning a mass gaining program, particularly one that involves dietary and exercise changes. However, this product is simply a powdered form of nutrition. This product is not recommended to replace meals; it is designed for use between regular meals or after exercise. You may begin with 1/2 serve of Serious Mass gainer mixed with water, then build up to a full serve. This product is not suited to those who are allergic to milk or dairy products, gluten, egg or soy, or have lactose intolerance.


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Optimum Nutrition Serious Mass Nutritional Information

Serving Size: 336g (2 Heaped Scoops)(Chocolate)

Carbohydrates, total
- Sugars
Fat, total
- Saturated
Creatine Monohydrate
PABA (Para-aminobenzoic acid)
Vitamin A (as beta-carotene)
Vitamin C (Ascorbic Acid)
Vitamin D (as Cholecalciferol)
Vitamin E (as d-alpha tocopherol succinate)
Thiamin (as thiamin mononitrate)
Niacin (as niacinamide)
Vitamin B6 (as pyridoxine hydrochloride)
Folate (as Folic Acid)
Vitamin B12 (as cyanocobalamin)
Biotin (as d-biotin)
Pantothenic Acid (as d-calcium pantothenate)
Choline (as choline bitartrate)
Calcium (as calcium citrate, dicalcium phosphate)
Iron (as ferrous fumerate)
Phosphorus (as dicalcium phosphate, dipotassium phosphate)
Iodine (as Potassium iodide)
Magnesium (as Magnesium aspartate)
Zinc (as zinc citrate)
Selenium (as selenomethionine)
Copper (as copper gluconate)
Manganese (as manganese amino acid chelate)
Chromium (as chromium polynicotinate)
Molybdenum (as molybdenum amino acid chelate)
Potassium (as dipotassium phosphate)
OTHER INGREDIENTS: Maltodextrin, Protein BLend (Whey Protein Concentrate, Calcium Caseinate, Egg Whites, Sweet Whey), Cocoa (Processed with Alkali), Natural and Artificial Flavour, Medium Chain Triglycerides, Lecithin, Acesulfame Potassium, Sucralose.

ALLERGEN INFORMATION: Contains Egg, Milk, Soy.