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Serious Mass Gainer

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Optimum Nutrition Serious Mass Gainer

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Only £30.99
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0p in Loyalty Points with this product choice
Active Ingredient Per Serving Per 100g
Energy (kj) 5269
1577.54
Energy (kcal) 1258 376.65
Protein 53.1g 15.9g
Carbohydrates 251.5g 75.3g
of which Sugars 21.8g 6.53g
Fat 4.4g 1.32g
of which Saturates 1.6g 0.48g
Fibre 0g 0g
Sodium 547mg 164mg

Nutritional information guideline only – view disclaimer.

Pack on serious size with Optimum Nutrition’s Serious Mass Gainer with a mammoth 53g of protein per serving!

Each serving provides your body with a whopping 53g of protein from a blend of premium proteins, including the highest quality whey.

Unlike cheaper alternatives, Serious Mass Gainer doesn’t use sugar to bump up the carbs, only the best ingredients specially designed to build muscle are used.

And with 250g of quality carbs in every delicious shake, you’ll be filled with energy to smash through every session!

With an incredible 1,258 high quality calories per shake, ON's Serious Mass Gainer gives you a one way ticket to maximum gains!

Ideal for those who struggle to gain weight, Serious Mass Gainer is the ULTIMATE weight gain formula, with everything you need to pack on size and improve strength.

Pack on serious size with Optimum Nutrition’s Serious Mass Gainer with a mammoth 53g of protein per serving!

Each serving provides your body with a whopping 53g of protein from a blend of premium proteins, including the highest quality whey.

Unlike cheaper alternatives, Serious Mass Gainer doesn’t use sugar to bump up the carbs, only the best ingredients specially designed to build muscle are used.

And with 250g of quality carbs in every delicious shake, you’ll be filled with energy to smash through every session!

With an incredible 1,258 high quality calories per shake, ON's Serious Mass Gainer gives you a one way ticket to maximum gains!

Ideal for those who struggle to gain weight, Serious Mass Gainer is the ULTIMATE weight gain formula, with everything you need to pack on size and improve strength.

QUICK FACTS:

  • The ULTIMATE weight gain formula
  • Support muscle growth with 53g of protein
  • Enjoy between meals, post-workout & before bed
  • Add serious mass with 1,258 quality calories per shake
  • REVIEWS

    5 / 5 stars
    Based on 13 review(s)
    Earn 10 loyalty points when you

    Recent Reviews

    10 of 13 reviews
    I love it!
    Review by Daniel Fox, 19/11/2019
    I love it!
    Review by sean henry, 25/06/2019
    I love it!
    Review by sean henry, 25/06/2019
    I love it!
    Review by Rocio Casillas, 30/05/2019
    I love it!
    Review by james butler, 22/05/2019
    I love it!
    Review by james butler, 17/05/2019
    Great product
    I love it!
    Review by jan surwilo, 28/02/2019
    I love it!
    Review by Danniel Ridsdale, 09/01/2019
    gain!!!
    Review by Abc, 15/09/2015
    I bought serious mass 3kg container and i gained 9lbs in 8 days with it, ive always been skinny who could never gain weight but this product worked on me and im sure it works on everyone who uses it gonna buy a 12lb bag soon!
    Beefcake
    Review by The king gain, 08/09/2015
    Put on a massive 5kg since using this for 3 weeks - I would say at least 4 is actual muscle - Strength gone up too, definitely recommend for skinny people.

  • NUTRITIONALS
    Active Ingredient Per Serving Per 100g
    Energy (kj) 5269
    1577.54
    Energy (kcal) 1258 376.65
    Protein 53.1g 15.9g
    Carbohydrates 251.5g 75.3g
    of which Sugars 21.8g 6.53g
    Fat 4.4g 1.32g
    of which Saturates 1.6g 0.48g
    Fibre 0g 0g
    Sodium 547mg 164mg

    Nutritional information guideline only – view disclaimer.

  • INGREDIENTS

    Banana: 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).

    Chocolate: Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumen), Fat-Reduced Cocoa Powder, Flavorings, Mineral Blend (Di-Potassium Phosphate, Sodium Chloride, Ferric Pryophosphate, Zinc Oxide, Copper Gluconate, Manganese Sulfate, Chromium Chloride Hexahydrate, Potassium Iodide), Medium Chain Triglycerides, Creatine Monohydrate, Choline Bitartrate, L-Glutamine, Glutamine Peptides, Whey Powder, 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).

    Strawberry: 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), Medium Chain Triglycerides, Color (Beetroot Red), Creatine Monohydrate, Choline Bitartrate, L-Glutamine, Glutamine Peptides, Whey Powder, 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).

    Vanilla: 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, Choline Bitartrate, L-Glutamine, Glutamine Peptides, Inositol, Colors (Curcumin, Beetroot Red), 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).

    Peanut Butter:

    Maltodextrin, Whey Protein Concentrate, Calcium Caseinate (Emulsifier: Soy Lecithin), Fat-Reduced Cocoa Powder (23%), 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, 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)

    Allergen Information For allergens see ingredients in bold

  • STORAGE & PREP

    Mix up 2 scoops with milk or water in your shaker and enjoy between meals, post-workout and/or before bed.