Optimum Nutrition Serious Mass Powder Chocolate Peanut Butter 2.73kg

Optimum Nutrition Serious Mass Powder Chocolate Peanut Butter 2.73kg
Optimum Nutrition Serious Mass Powder Chocolate Peanut Butter 2.73kg

Optimum Nutrition Serious Mass Powder Chocolate Peanut Butter 2.73kg

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Optimum Nutrition Serious Mass

  • For Muscle Building & Weight Gain
  • More than 1260 kcal per serving to help boost your calorie intake
  • 50 g protein per serving to help build and maintain muscle

Serious weight gain requires serious calories. However, those who need the extra calories most often have the toughest time consuming enough of them. For many aspiring to be bigger, SERIOUS MASS is the ultimate in weight gain formulas. With 1,250 calories per serving to boost daily calorie intake, 50g high protein to support muscle growth and repair, over 250g carbohydrates, and now with 3 g added Creatine to support performance per serving, you’ve got nothing to lose and lots to gain. It is time to stop thinking small and get serious – SERIOUS MASS

Use Anytime, it is quick, convenient and easy to prepare. Serious Mass is ideal between meals, after weight training as part of your recovery routine and before bed. Just mix two scoops of Serious Mass (334g) with 710ml of water to create a tasty, calorie-packed shake.

Customer Reviews

4.51/5 stars


Full ingredients

Maltodextrin, Whey Protein Concentrate (milk), Calcium Caseinate (milk) (Emulsifier: Soy Lecithin), Fat-Reduced Cocoa Powder (2.3%), Flavouring, Minerals (Sodium Chloride, Dipotassium Phosphate, Ferric Pyrophosphate, Zinc Oxide, Cupric Gluconate, Manganese Sulphate, Chromium III Chloride Hexahydrate, Potassium Iodide), EGG Albumen, Medium Chain Triglycerides, Creatine Monohydrate, Choline Bitartrate, L-Glutamine, Glutamine Peptides [Wheat], Whey Powder (milk), Inositol, Vitamin Blend (L-Ascorbic Acid, Nicotinamide, DL-Alpha-Tocopheryl Acetate, Calcium D-Pantothenate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Hydrochloride, Retinyl Acetate, Pteroylmonoglutamic Acid, D-Biotin, Cholecalciferol, Cyanocobalamin), Sweetener (Sucralose). For allergens, see ingredients in bold.

Always read the label before use

Nutritional Information

Per 100g / 330g serving
Energy (kJ) 1596kJ / 5266kJ
Energy (kcal) 381kcal / 1259kcal
Fat 1.6g / 5.3g
Of which saturates 0.9g / 3.1g
Carbohydrate 76g / 252g
Of which sugars 7.8g / 252g
Fibre 0.7g / 2.4g
Protein 15g / 50g
Salt 0.58g / 1.91g
Vitamin A 91.7µg / 303µg
Vitamin D 0.57µg / 1.9µg
Vitamin E 1.1mg / 3.7mg
Vitamin C 6.7mg / 22mg
Thiamin 0.16mg / 0.52mg
Riboflavin 0.19mg / 0.61mg
Niacin 2.1mg / 6.9mg
Vitamin B6 0.23mg / 0.74mg
Folic Acid 21.7µg / 71.6µg
Vitamin B12 0.14µg / 0.46µg
Biotin 17µg / 55µg
Pantothenic Acid 0.67mg / 2.2mg
Potassium 414mg / 1360mg
Chloride 335mg / 1110mg
Calcium 123mg / 407mg
Phosphorus 180mg / 596mg
Magnesium 20.2mg / 66.6mg
Iron 2.8mg / 9.2mg
Zinc 1.2mg / 4.1mg
Copper 0.26mg / 0.85mg
Manganese 0.18mg / 0.59mg
Selenium 3.3µg / 11µg
Chromium 43µg / 140µg
Iodine 15µg / 51µg
Sodium 231mg / 763mg

Additional Info

Remember to:

We go to great efforts to ensure that the information on this page is accurate at the time that the page was last edited. As we are constantly reviewing and developing our products to meet our consumer needs, consumers, particularly those that suffer from allergies and intolerances, should always check product labelling, warnings, and directions provided with the product that is delivered, prior to use or consumption.


Add 2 heaped scoops (330 g) of Serious Mass to a blender filled with 710 ml of water. Blend for 45-60 seconds. Then add a few ice cubes and, if desired, other calorie-contributing ingredients and blend for an additional 30-45 seconds. TIP: New users may find it beneficial to begin with ½ a serving daily for the first week and then gradually increase to 1 or more full servings several times a day.

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