Optimum Nutrition
Serious Mass by Optimum Nutrition 6lbs
$98.95 AUD
Unit price perSerious Mass by Optimum Nutrition 6lbs is a high-energy gainer powder for people who find it hard to eat enough to support their training. A full 2-scoop serve gives about 1,250 Calories, 50 g of protein and 254 g of carbohydrate (Chocolate), plus 3 g of creatine monohydrate, 1 g of L-glutamine and added vitamins and minerals. Choose Banana, Chocolate or Vanilla.
Key features
- About 1,250 Calories per 336 g serve (two heaping scoops)
- 50 g of protein per serve from whey protein concentrate, calcium caseinate and sweet dairy whey
- 252 to 254 g of carbohydrate per serve depending on flavour, with maltodextrin as the main ingredient
- 3 g of creatine monohydrate and 1 g of L-glutamine per serve
- Added vitamins and minerals, including 800 mg calcium, 8 mg iron and 220 mg magnesium per serve (Chocolate)
- 8 serves of 336 g in the 6 lb (2.72 kg) bag
Nutrition information
Per 336 g serve (Chocolate, Australian label). The brand panel lists energy in kcal. Values vary slightly between flavours.
| Nutrient | Per serve | Per 100 g |
|---|---|---|
| Energy | 1252 kcal | 373 kcal |
| Protein | 50 g | 15 g |
| Fat, total | 4 g | 1 g |
| Saturated | 2.5 g | 0.7 g |
| Carbohydrate | 254 g | 76 g |
| Sugars | 20 g | 6 g |
| Sodium | 420 mg | 125 mg |
| Vitamin A | 375 µg RE | 112 µg RE |
| Vitamin C | 30 mg | 9 mg |
| Vitamin E | 8 mg α-TE | 2 mg α-TE |
| Vitamin B1 | 0.3 mg | 0.1 mg |
| Vitamin B2 | 0.8 mg | 0.2 mg |
| Niacin | 4 mg NE | 1 mg NE |
| Vitamin B6 | 0.4 mg | 0.1 mg |
| Folic acid | 100 µg | 30 µg |
| Vitamin B12 | 1.2 µg | 0.4 µg |
| Biotin | 50 µg | 15 µg |
| Pantothenic acid | 3 mg | 0.9 mg |
| Calcium | 800 mg | 238 mg |
| Iron | 8 mg | 2 mg |
| Iodine | 23 µg | 7 µg |
| Magnesium | 220 mg | 65 mg |
| Zinc | 4 mg | 1 mg |
| Copper | 0.4 mg | 0.1 mg |
| Manganese | 1 mg | 0.3 mg |
| Potassium | 990 mg | 295 mg |
| Creatine monohydrate | 3 g | 0.9 g |
| L-glutamine | 1 g | 0.3 g |
Ingredients
Chocolate: Maltodextrin, Protein Blend (Whey Protein Concentrate (Milk), Calcium Caseinate (Milk), Sweet Dairy Whey (Milk)) (Emulsifier: Soy Lecithin), Cocoa Powder (Processed with Alkali), Flavours, Creatine Monohydrate, Vitamin and Mineral Blend (Magnesium Phosphate Dibasic, Calcium Phosphate Tribasic, Calcium Carbonate, Sodium Ascorbate, DL-α-Tocopheryl Acetate, Ferrous Fumarate, Biotin, Nicotinamide, Vitamin A (Retinyl Acetate), Zinc Oxide, Cupric Gluconate, Calcium Pantothenate, Manganese Sulphate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Hydrochloride, Potassium Iodide, Cyanocobalamin, Folic Acid), L-Glutamine, Medium Chain Triglycerides Powder, Sweeteners (950, 955).
Allergens: contains milk and soy.
How to use
Mix 2 scoops (336 g, about 2 heaping scoops) into 700 to 720 ml of cold water or milk using an electric blender, and blend for 30 to 45 seconds until dissolved. A blender also lets you add fruit, peanut butter or other foods. New users should start with a 1-scoop half serve. Have it after training and/or between meals to add kilojoules, carbohydrate and protein to a balanced diet.
Good to know
- Contains milk and soy.
- Each full serve contains 3 g of creatine monohydrate. Count it if you also take a separate creatine product.
- Not a meal replacement and should not be your only source of nutrition.
- If you are pregnant, breastfeeding, taking medication or have a medical condition, talk to your healthcare provider before use.
- Keep out of reach of children. Store in a cool, dry place away from direct sunlight.
FAQs
How many Calories are in one serve?
A full 336 g serve of Chocolate provides 1,252 Calories (kcal), 50 g of protein, 254 g of carbohydrate and 4 g of fat. That is a lot of energy in one drink, which is why the label suggests new users start with a 1-scoop half serve and build up from there.
How many serves are in the 6 lb bag?
The Australian label for the 2.72 kg (6 lb) bag lists 8 serves of 336 g. If you use 1-scoop half serves, as the label suggests for new users, you will get around 16 half serves from the bag.
Do I need a blender?
The label directions say to use an electric blender with 700 to 720 ml of cold water or milk for 30 to 45 seconds. A full serve is 336 g of powder, which is a lot to dissolve in a hand shaker. A blender also makes it easy to add fruit or peanut butter for extra kilojoules.
Does it contain creatine?
Yes. Each full serve has 3 g of creatine monohydrate, so a half serve has about 1.5 g. The AIS creatine fact sheet describes a maintenance intake of about 3 to 5 g a day, so check your total if you also take a separate creatine supplement.
Is it suitable if I am lactose intolerant?
It is not labelled lactose free. The protein comes from whey protein concentrate, calcium caseinate and sweet dairy whey, which are all milk ingredients, and the label states it contains milk and soy. If lactose is a problem for you, check with your doctor or dietitian first, or browse our mass gainer range for other options.
Label details checked against Optimum Nutrition Australia on 9 October 2026. Formulas can change, so always check the label on the product you buy.
Always read the label and follow the directions for use.
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Serious Mass by Optimum Nutrition 6lbs
Serious Mass by Optimum Nutrition 6lbs
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Serious Mass by Optimum Nutrition 6lbs is a high-energy gainer powder for people who find it hard to eat enough to support their training. A full 2-scoop serve gives about 1,250 Calories, 50 g of protein and 254 g of carbohydrate (Chocolate), plus 3 g of creatine monohydrate, 1 g of L-glutamine and added vitamins and minerals. Choose Banana, Chocolate or Vanilla.
Key features
- About 1,250 Calories per 336 g serve (two heaping scoops)
- 50 g of protein per serve from whey protein concentrate, calcium caseinate and sweet dairy whey
- 252 to 254 g of carbohydrate per serve depending on flavour, with maltodextrin as the main ingredient
- 3 g of creatine monohydrate and 1 g of L-glutamine per serve
- Added vitamins and minerals, including 800 mg calcium, 8 mg iron and 220 mg magnesium per serve (Chocolate)
- 8 serves of 336 g in the 6 lb (2.72 kg) bag
Nutrition information
Per 336 g serve (Chocolate, Australian label). The brand panel lists energy in kcal. Values vary slightly between flavours.
| Nutrient | Per serve | Per 100 g |
|---|---|---|
| Energy | 1252 kcal | 373 kcal |
| Protein | 50 g | 15 g |
| Fat, total | 4 g | 1 g |
| Saturated | 2.5 g | 0.7 g |
| Carbohydrate | 254 g | 76 g |
| Sugars | 20 g | 6 g |
| Sodium | 420 mg | 125 mg |
| Vitamin A | 375 µg RE | 112 µg RE |
| Vitamin C | 30 mg | 9 mg |
| Vitamin E | 8 mg α-TE | 2 mg α-TE |
| Vitamin B1 | 0.3 mg | 0.1 mg |
| Vitamin B2 | 0.8 mg | 0.2 mg |
| Niacin | 4 mg NE | 1 mg NE |
| Vitamin B6 | 0.4 mg | 0.1 mg |
| Folic acid | 100 µg | 30 µg |
| Vitamin B12 | 1.2 µg | 0.4 µg |
| Biotin | 50 µg | 15 µg |
| Pantothenic acid | 3 mg | 0.9 mg |
| Calcium | 800 mg | 238 mg |
| Iron | 8 mg | 2 mg |
| Iodine | 23 µg | 7 µg |
| Magnesium | 220 mg | 65 mg |
| Zinc | 4 mg | 1 mg |
| Copper | 0.4 mg | 0.1 mg |
| Manganese | 1 mg | 0.3 mg |
| Potassium | 990 mg | 295 mg |
| Creatine monohydrate | 3 g | 0.9 g |
| L-glutamine | 1 g | 0.3 g |
Ingredients
Chocolate: Maltodextrin, Protein Blend (Whey Protein Concentrate (Milk), Calcium Caseinate (Milk), Sweet Dairy Whey (Milk)) (Emulsifier: Soy Lecithin), Cocoa Powder (Processed with Alkali), Flavours, Creatine Monohydrate, Vitamin and Mineral Blend (Magnesium Phosphate Dibasic, Calcium Phosphate Tribasic, Calcium Carbonate, Sodium Ascorbate, DL-α-Tocopheryl Acetate, Ferrous Fumarate, Biotin, Nicotinamide, Vitamin A (Retinyl Acetate), Zinc Oxide, Cupric Gluconate, Calcium Pantothenate, Manganese Sulphate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Hydrochloride, Potassium Iodide, Cyanocobalamin, Folic Acid), L-Glutamine, Medium Chain Triglycerides Powder, Sweeteners (950, 955).
Allergens: contains milk and soy.
How to use
Mix 2 scoops (336 g, about 2 heaping scoops) into 700 to 720 ml of cold water or milk using an electric blender, and blend for 30 to 45 seconds until dissolved. A blender also lets you add fruit, peanut butter or other foods. New users should start with a 1-scoop half serve. Have it after training and/or between meals to add kilojoules, carbohydrate and protein to a balanced diet.
Good to know
- Contains milk and soy.
- Each full serve contains 3 g of creatine monohydrate. Count it if you also take a separate creatine product.
- Not a meal replacement and should not be your only source of nutrition.
- If you are pregnant, breastfeeding, taking medication or have a medical condition, talk to your healthcare provider before use.
- Keep out of reach of children. Store in a cool, dry place away from direct sunlight.
FAQs
How many Calories are in one serve?
A full 336 g serve of Chocolate provides 1,252 Calories (kcal), 50 g of protein, 254 g of carbohydrate and 4 g of fat. That is a lot of energy in one drink, which is why the label suggests new users start with a 1-scoop half serve and build up from there.
How many serves are in the 6 lb bag?
The Australian label for the 2.72 kg (6 lb) bag lists 8 serves of 336 g. If you use 1-scoop half serves, as the label suggests for new users, you will get around 16 half serves from the bag.
Do I need a blender?
The label directions say to use an electric blender with 700 to 720 ml of cold water or milk for 30 to 45 seconds. A full serve is 336 g of powder, which is a lot to dissolve in a hand shaker. A blender also makes it easy to add fruit or peanut butter for extra kilojoules.
Does it contain creatine?
Yes. Each full serve has 3 g of creatine monohydrate, so a half serve has about 1.5 g. The AIS creatine fact sheet describes a maintenance intake of about 3 to 5 g a day, so check your total if you also take a separate creatine supplement.
Is it suitable if I am lactose intolerant?
It is not labelled lactose free. The protein comes from whey protein concentrate, calcium caseinate and sweet dairy whey, which are all milk ingredients, and the label states it contains milk and soy. If lactose is a problem for you, check with your doctor or dietitian first, or browse our mass gainer range for other options.
Label details checked against Optimum Nutrition Australia on 9 October 2026. Formulas can change, so always check the label on the product you buy.
Always read the label and follow the directions for use.
Free standard shipping on orders of $99.99 AUD or more within Australia.
Orders under $99.99 ship for a flat $12.98 AUD.
Delivery estimates are shown at checkout. In-store pickup is available at our Melbourne stores.
Serious Mass by Optimum Nutrition 6lbs
We'll email you once when this option is back online. You can also check stock at your nearest Supps247 store.
Done. We'll email you when it's back in stock.
Sorry, that didn't go through. Please check your email address and try again.
Serious Mass by Optimum Nutrition 6lbs is a high-energy gainer powder for people who find it hard to eat enough to support their training. A full 2-scoop serve gives about 1,250 Calories, 50 g of protein and 254 g of carbohydrate (Chocolate), plus 3 g of creatine monohydrate, 1 g of L-glutamine and added vitamins and minerals. Choose Banana, Chocolate or Vanilla.
Key features
- About 1,250 Calories per 336 g serve (two heaping scoops)
- 50 g of protein per serve from whey protein concentrate, calcium caseinate and sweet dairy whey
- 252 to 254 g of carbohydrate per serve depending on flavour, with maltodextrin as the main ingredient
- 3 g of creatine monohydrate and 1 g of L-glutamine per serve
- Added vitamins and minerals, including 800 mg calcium, 8 mg iron and 220 mg magnesium per serve (Chocolate)
- 8 serves of 336 g in the 6 lb (2.72 kg) bag
Nutrition information
Per 336 g serve (Chocolate, Australian label). The brand panel lists energy in kcal. Values vary slightly between flavours.
| Nutrient | Per serve | Per 100 g |
|---|---|---|
| Energy | 1252 kcal | 373 kcal |
| Protein | 50 g | 15 g |
| Fat, total | 4 g | 1 g |
| Saturated | 2.5 g | 0.7 g |
| Carbohydrate | 254 g | 76 g |
| Sugars | 20 g | 6 g |
| Sodium | 420 mg | 125 mg |
| Vitamin A | 375 µg RE | 112 µg RE |
| Vitamin C | 30 mg | 9 mg |
| Vitamin E | 8 mg α-TE | 2 mg α-TE |
| Vitamin B1 | 0.3 mg | 0.1 mg |
| Vitamin B2 | 0.8 mg | 0.2 mg |
| Niacin | 4 mg NE | 1 mg NE |
| Vitamin B6 | 0.4 mg | 0.1 mg |
| Folic acid | 100 µg | 30 µg |
| Vitamin B12 | 1.2 µg | 0.4 µg |
| Biotin | 50 µg | 15 µg |
| Pantothenic acid | 3 mg | 0.9 mg |
| Calcium | 800 mg | 238 mg |
| Iron | 8 mg | 2 mg |
| Iodine | 23 µg | 7 µg |
| Magnesium | 220 mg | 65 mg |
| Zinc | 4 mg | 1 mg |
| Copper | 0.4 mg | 0.1 mg |
| Manganese | 1 mg | 0.3 mg |
| Potassium | 990 mg | 295 mg |
| Creatine monohydrate | 3 g | 0.9 g |
| L-glutamine | 1 g | 0.3 g |
Ingredients
Chocolate: Maltodextrin, Protein Blend (Whey Protein Concentrate (Milk), Calcium Caseinate (Milk), Sweet Dairy Whey (Milk)) (Emulsifier: Soy Lecithin), Cocoa Powder (Processed with Alkali), Flavours, Creatine Monohydrate, Vitamin and Mineral Blend (Magnesium Phosphate Dibasic, Calcium Phosphate Tribasic, Calcium Carbonate, Sodium Ascorbate, DL-α-Tocopheryl Acetate, Ferrous Fumarate, Biotin, Nicotinamide, Vitamin A (Retinyl Acetate), Zinc Oxide, Cupric Gluconate, Calcium Pantothenate, Manganese Sulphate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Hydrochloride, Potassium Iodide, Cyanocobalamin, Folic Acid), L-Glutamine, Medium Chain Triglycerides Powder, Sweeteners (950, 955).
Allergens: contains milk and soy.
How to use
Mix 2 scoops (336 g, about 2 heaping scoops) into 700 to 720 ml of cold water or milk using an electric blender, and blend for 30 to 45 seconds until dissolved. A blender also lets you add fruit, peanut butter or other foods. New users should start with a 1-scoop half serve. Have it after training and/or between meals to add kilojoules, carbohydrate and protein to a balanced diet.
Good to know
- Contains milk and soy.
- Each full serve contains 3 g of creatine monohydrate. Count it if you also take a separate creatine product.
- Not a meal replacement and should not be your only source of nutrition.
- If you are pregnant, breastfeeding, taking medication or have a medical condition, talk to your healthcare provider before use.
- Keep out of reach of children. Store in a cool, dry place away from direct sunlight.
FAQs
How many Calories are in one serve?
A full 336 g serve of Chocolate provides 1,252 Calories (kcal), 50 g of protein, 254 g of carbohydrate and 4 g of fat. That is a lot of energy in one drink, which is why the label suggests new users start with a 1-scoop half serve and build up from there.
How many serves are in the 6 lb bag?
The Australian label for the 2.72 kg (6 lb) bag lists 8 serves of 336 g. If you use 1-scoop half serves, as the label suggests for new users, you will get around 16 half serves from the bag.
Do I need a blender?
The label directions say to use an electric blender with 700 to 720 ml of cold water or milk for 30 to 45 seconds. A full serve is 336 g of powder, which is a lot to dissolve in a hand shaker. A blender also makes it easy to add fruit or peanut butter for extra kilojoules.
Does it contain creatine?
Yes. Each full serve has 3 g of creatine monohydrate, so a half serve has about 1.5 g. The AIS creatine fact sheet describes a maintenance intake of about 3 to 5 g a day, so check your total if you also take a separate creatine supplement.
Is it suitable if I am lactose intolerant?
It is not labelled lactose free. The protein comes from whey protein concentrate, calcium caseinate and sweet dairy whey, which are all milk ingredients, and the label states it contains milk and soy. If lactose is a problem for you, check with your doctor or dietitian first, or browse our mass gainer range for other options.
Label details checked against Optimum Nutrition Australia on 9 October 2026. Formulas can change, so always check the label on the product you buy.
Always read the label and follow the directions for use.
Free standard shipping on orders of $99.99 AUD or more within Australia.
Orders under $99.99 ship for a flat $12.98 AUD.
Delivery estimates are shown at checkout. In-store pickup is available at our Melbourne stores.
Serious Mass by Optimum Nutrition 6lbs
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