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Description
  • Over 1250 calories per serving

  • 50 g of whey protein

  • 250 g carbs helps support muscle recovery 
  • 25 vitamins and minerals
  • 3 g of creatine to support performance 
  • Ideal formula to support weight gains
  • Enjoy post work-out and between meals
  • Available in a range of sizes and great tasting flavours

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, a highly active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. 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 helping support muscle recovery , 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™

 

DESCRIPTION

Ready to mix powder with protein, carbohydrates, vitamins and minerals, with sweetener.

 

Nutritional Facts

Directions

Add one serving of ON Serious Mass to your preferred amount of water or milk and shake. For best results consume in between meals, post workout and/or before bed. New users would benefit from starting with half of the recommended serving size.  

Serving Information

Serving Size: 2 scoops (334g) 

Servings per container: 2.73kg = 8 servings 

Ingredients

Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumen, Sweet Dairy Way), Creatine Monohydrate, L-Glutamine, Glutamine Peptides, Choline (as Choline Bitartrate), Inositol, Paba (Para-Aminobenzoic Acid), Artificial Flavor, Vitamin & Mineral Blend (Di-Potassium Phosphate, Magnesium Aspartate, Di-Calcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, d-Calcium Pantothenate, d-alpha Tocopherol Succinate, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Picolinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Medium Chain Tri-glycerides, Acesulfame Potassium

Manufactured using equipment that processes products containing Milk, Soy, Egg, Gluten, NutsPeanuts and Shell Fish

For Allergens, please see ingredients in bold

Nutritional Values 

Calories per 334g serving: 1250 

Protein (g) per 334g serving: 50 
Carbohydrates (g) per 334g serving: 252 
    of which sugars (g) per 334g serving: 20 
Fiber (g) per 334g serving: 4
Fat (g) per 334g serving: 4.5
    of which saturates (g) per 334g serving: 1.5
Cholesterol (mg) per 334g serving: 80
Vitamin A (IU) per 334g serving: 5000 
Vitamin C (mg) per 334g serving: 60 
Vitamin D (IU) per 334g serving: 200  
Vitamin E (IU) per 334g serving:  30 
Thiamin (mg) per 334g serving: 4.8
Riboflavin (mg) per 334g serving: 4
Niacin (mg) per 334g serving: 50
Vitamin B6 (mg) per 334g serving: 5
Folic Acid (mcg) per 334g serving: 400
Vitamin B12 (mcg) per 334g serving: 10
Biotin (mcg) per 334g serving: 300
Pantothenic Acid (mg) per 334g serving: 25 
Calcium (mg) per 334g serving: 590
Iron (mg) per 334g serving: 8 
Phosphorus (mg) per 334g serving: 430 
Iodine (mcg) per 334g serving: 150 
Magnesium (mg) per 334g serving: 140 
Zinc (mg) per 334g serving: 15
Selenium (mcg) per 334g serving: 70
Copper (mg) per 334g serving: 1.6
Manganese (mg) per 334g serving: 2 
Chromium (mcg) per 334g serving: 120 
Molybdenum (mcg) per 334g serving: 75 
Sodium (mg) per 334g serving: 410
Potassium (mg) per 334g serving: 1560 
Choline (as choline bitartrate) (mg) per 334g serving: 250
Inositol (mg) per 334g serving:  250 
PABA (mg) per 334g serving: 5
Creatine Monohydrate (g) per 334g serving: 1 
L-Glutamine (mg) per 334g serving: 500
Glutamine Peptides (mg) per 334g serving 500

Please note that nutritional information is based on chocolate flavour and individual flavours may vary.

Advisory

This product is only intended for use by healthy adults over 18 years of age. Please consult your physician before using this product if you have a pre-existing medical condition, including but not limited to diabetes or hypoglycemia or are taking any prescription or over-the-counter medications. Do not use this product if you are pregnant, expect to become pregnant or are nursing.  

STORAGE AND MAINTENANCE:  Store this product in a cool, dry place.

Optimum Nutrition Serious Mass 2.73kg

Regular price £35.90
  • Banana
  • Chocolate
  • Choc Peanut Butter
  • Cookies & Cream
  • Strawberry
  • Vanilla

Description
  • Over 1250 calories per serving

  • 50 g of whey protein

  • 250 g carbs helps support muscle recovery 
  • 25 vitamins and minerals
  • 3 g of creatine to support performance 
  • Ideal formula to support weight gains
  • Enjoy post work-out and between meals
  • Available in a range of sizes and great tasting flavours

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, a highly active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. 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 helping support muscle recovery , 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™

 

DESCRIPTION

Ready to mix powder with protein, carbohydrates, vitamins and minerals, with sweetener.

 

Nutritional Facts

Directions

Add one serving of ON Serious Mass to your preferred amount of water or milk and shake. For best results consume in between meals, post workout and/or before bed. New users would benefit from starting with half of the recommended serving size.  

Serving Information

Serving Size: 2 scoops (334g) 

Servings per container: 2.73kg = 8 servings 

Ingredients

Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumen, Sweet Dairy Way), Creatine Monohydrate, L-Glutamine, Glutamine Peptides, Choline (as Choline Bitartrate), Inositol, Paba (Para-Aminobenzoic Acid), Artificial Flavor, Vitamin & Mineral Blend (Di-Potassium Phosphate, Magnesium Aspartate, Di-Calcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, d-Calcium Pantothenate, d-alpha Tocopherol Succinate, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Picolinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Medium Chain Tri-glycerides, Acesulfame Potassium

Manufactured using equipment that processes products containing Milk, Soy, Egg, Gluten, NutsPeanuts and Shell Fish

For Allergens, please see ingredients in bold

Nutritional Values 

Calories per 334g serving: 1250 

Protein (g) per 334g serving: 50 
Carbohydrates (g) per 334g serving: 252 
    of which sugars (g) per 334g serving: 20 
Fiber (g) per 334g serving: 4
Fat (g) per 334g serving: 4.5
    of which saturates (g) per 334g serving: 1.5
Cholesterol (mg) per 334g serving: 80
Vitamin A (IU) per 334g serving: 5000 
Vitamin C (mg) per 334g serving: 60 
Vitamin D (IU) per 334g serving: 200  
Vitamin E (IU) per 334g serving:  30 
Thiamin (mg) per 334g serving: 4.8
Riboflavin (mg) per 334g serving: 4
Niacin (mg) per 334g serving: 50
Vitamin B6 (mg) per 334g serving: 5
Folic Acid (mcg) per 334g serving: 400
Vitamin B12 (mcg) per 334g serving: 10
Biotin (mcg) per 334g serving: 300
Pantothenic Acid (mg) per 334g serving: 25 
Calcium (mg) per 334g serving: 590
Iron (mg) per 334g serving: 8 
Phosphorus (mg) per 334g serving: 430 
Iodine (mcg) per 334g serving: 150 
Magnesium (mg) per 334g serving: 140 
Zinc (mg) per 334g serving: 15
Selenium (mcg) per 334g serving: 70
Copper (mg) per 334g serving: 1.6
Manganese (mg) per 334g serving: 2 
Chromium (mcg) per 334g serving: 120 
Molybdenum (mcg) per 334g serving: 75 
Sodium (mg) per 334g serving: 410
Potassium (mg) per 334g serving: 1560 
Choline (as choline bitartrate) (mg) per 334g serving: 250
Inositol (mg) per 334g serving:  250 
PABA (mg) per 334g serving: 5
Creatine Monohydrate (g) per 334g serving: 1 
L-Glutamine (mg) per 334g serving: 500
Glutamine Peptides (mg) per 334g serving 500

Please note that nutritional information is based on chocolate flavour and individual flavours may vary.

Advisory

This product is only intended for use by healthy adults over 18 years of age. Please consult your physician before using this product if you have a pre-existing medical condition, including but not limited to diabetes or hypoglycemia or are taking any prescription or over-the-counter medications. Do not use this product if you are pregnant, expect to become pregnant or are nursing.  

STORAGE AND MAINTENANCE:  Store this product in a cool, dry place.

Optimum Nutrition Serious Mass 2.73kg

Customer Service

You can speak to us via Email, Telephone, Instagram, Facebook or In-Store

UK Warehouse

Orders are shipped from our warehouse in Bexhill-On-Sea, East Sussex

Worldwide Shipping

We can ship to any country in the world, check out our delivery page for more information

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