Optimum Nutrition Serious Mass-Chocolate-6 lbs
Putting on mass has never been so easy with Optimum Nutrition Serious Mass. This weight gainer powder contains a whopping 1,250 calories per serving, with 2 massive 167g scoops packing 50g of blended protein including Whey Concentrate and Isolates, as well as casein and egg proteins. Plus over 250g of carbohydrates, no added sugar, as well as creatine, glutamine and glutamic acid to support strength and recovery, look no further if you want to take your muscle building to the next level. Plus with as little as 7g of fat and enhanced with 25 vitamins and minerals, you can forget dirty bulking to increasing your calorie intake, and reach for a tub of Optimum Nutrition Serious Mass instead, to flood your body with muscle building nutrients capable of sky-rocketing your daily intake of proteins and carbohydrates. Available in Banana, Vanilla and Chocolate, prepare for one of the most delicious and best textured shakes on the market. Don’t forget to mix with low fat milk to step up your calorie game to the next level!
Putting on mass has never been so easy with Optimum Nutrition Serious Mass. This weight gainer powder contains a whopping 1,250 calories per serving, with 2 massive 167g scoops packing 50g of blended protein including Whey Concentrate and Isolates, as well as casein and egg proteins. Plus over 250g of carbohydrates, no added sugar, as well as creatine, glutamine and glutamic acid to support strength and recovery, look no further if you want to take your muscle building to the next level. Plus with as little as 7g of fat and enhanced with 25 vitamins and minerals, you can forget dirty bulking to increasing your calorie intake, and reach for a tub of Optimum Nutrition Serious Mass instead, to flood your body with muscle building nutrients capable of sky-rocketing your daily intake of proteins and carbohydrates. Available in Banana, Vanilla and Chocolate, prepare for one of the most delicious and best textured shakes on the market. Don’t forget to mix with low fat milk to step up your calorie game to the next level!
Putting on mass has never been so easy with Optimum Nutrition Serious Mass. This weight gainer powder contains a whopping 1,250 calories per serving, with 2 massive 167g scoops packing 50g of blended protein including Whey Concentrate and Isolates, as well as casein and egg proteins. Plus over 250g of carbohydrates, no added sugar, as well as creatine, glutamine and glutamic acid to support strength and recovery, look no further if you want to take your muscle building to the next level. Plus with as little as 7g of fat and enhanced with 25 vitamins and minerals, you can forget dirty bulking to increasing your calorie intake, and reach for a tub of Optimum Nutrition Serious Mass instead, to flood your body with muscle building nutrients capable of sky-rocketing your daily intake of proteins and carbohydrates. Available in Banana, Vanilla and Chocolate, prepare for one of the most delicious and best textured shakes on the market. Don’t forget to mix with low fat milk to step up your calorie game to the next level!
Putting on mass has never been so easy with Optimum Nutrition Serious Mass. This weight gainer powder contains a whopping 1,250 calories per serving, with 2 massive 167g scoops packing 50g of blended protein including Whey Concentrate and Isolates, as well as casein and egg proteins. Plus over 250g of carbohydrates, no added sugar, as well as creatine, glutamine and glutamic acid to support strength and recovery, look no further if you want to take your muscle building to the next level. Plus with as little as 7g of fat and enhanced with 25 vitamins and minerals, you can forget dirty bulking to increasing your calorie intake, and reach for a tub of Optimum Nutrition Serious Mass instead, to flood your body with muscle building nutrients capable of sky-rocketing your daily intake of proteins and carbohydrates. Available in Banana, Vanilla and Chocolate, prepare for one of the most delicious and best textured shakes on the market. Don’t forget to mix with low fat milk to step up your calorie game to the next level!
in 22 offers
The lowest price for Optimum Nutrition Serious Mass-Chocolate-6 lbs right now is $76.40 at Oxygen Nutrition, compared across 18 retailers.
The all-time low was $47.47 on 25 Oct 2025 — today's price is 61% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 9 June 2026.
Last updated at 09/06/2026 16:30:25
Optimum Nutrition Serious Mass Gainer Protein Powder, Vanilla, 6 Pound
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Optimum Nutrition Serious Mass, 2.72kg / Vanilla
Same-day delivery $12.90
Optimum Nutrition Serious Mass Vanilla 2.72kg
Delivery $9.95
Optimum Nutrition Serious Mass Vanilla 2.72kg
Delivery between Fri – Tue $9.95
Optimum Nutrition Serious Mass Chocolate 2.72kg
Delivery between Fri – Tue $9.95
Optimum Nutrition Serious Mass Chocolate 2.72kg
Delivery between 12–17 June $9.95
Optimum Nutrition Serious Mass Vanilla 2.72kg
Delivery between 12–17 June $9.95
Optimum Nutrition Serious Mass, 2.72kg / Chocolate // Powerhouse Supplements
Delivery $10
Optimum Nutrition - Serious Mass, 2.72kg / Vanilla
Delivery between Fri – Tue $12.90
OPTIMUM NUTRITION ON Serious Mass 2.72kg
14-day returns
| protein | 50g |
| carbs | 254g |
| sugars | 20g |
| fibre | 4g |
| total-fats | 4.5g |
Optimum Nutrition Serious Mass Gainer Protein Powder, Vanilla, 6 Pound
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Optimum Nutrition Serious Mass, 2.72kg / Vanilla
Same-day delivery $12.90
Optimum Nutrition Serious Mass Vanilla 2.72kg
Delivery $9.95
Optimum Nutrition Serious Mass Vanilla 2.72kg
Delivery between Fri – Tue $9.95
Optimum Nutrition Serious Mass Chocolate 2.72kg
Delivery between Fri – Tue $9.95
| protein | 50g |
| carbs | 254g |
| sugars | 20g |
| fibre | 4g |
| total-fats | 4.5g |