Optimum Nutrition - Serious Mass 2.72kg / Chocolate
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 23 offers
The lowest price for Optimum Nutrition - Serious Mass 2.72kg / Chocolate right now is $76.40 at Oxygen Nutrition, compared across 16 retailers.
The all-time low was $42.67 on 17 July 2025 — today's price is 79% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 8 June 2026.
Last updated at 08/06/2026 15:18:59
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 | 2.72kg | Chocolate | High Calorie Weight Gain Support
Delivery $10
Optimum Nutrition Serious Mass Vanilla 2.72kg
Delivery between Thu – Mon $9.95
Optimum Nutrition Serious Mass Chocolate 2.72kg
Delivery between Thu – Mon $9.95
Optimum Nutrition Serious Mass Banana 2.72kg
Delivery between Thu – Mon $9.95
Optimum Nutrition Serious Mass Vanilla 2.72kg
Delivery between 11–16 June $9.95
Optimum Nutrition Serious Mass Chocolate 2.72kg
Delivery between 11–16 June $9.95
Optimum Nutrition Serious Mass Banana 2.72kg
Delivery between 11–16 June $9.95
Optimum Nutrition Serious Mass, 2.72kg / Chocolate // Powerhouse Supplements
Delivery $10
originally posted on popeyestoronto.com
I bought this mass gainer after losing a few pounds due to health reasons. I used to try and drink mass gainer before but it never sat right with me, either it tasted horrible or resulted in nausea the whole day. Serious mass has been tremendous. I went from 137 pounds to 152 in a little bit more than two weeks. Keep in mind I was really skinny when I started so I gained fast, now it is much much slower. Also, a few recommendations on how to drink it. I use milk, which adds more calories and has a better taste. I also use peanut butter, Nutella, and a banana. Maybe adding both Nutella and peanut butter isn't the best idea but I was aiming at 4k calories a day so it felt necessary for me. Still, do try and mix it up, the taste gets boring very very fast. Good luck ... MoreI bought this mass gainer after losing a few pounds due to health reasons. I used to try and drink mass gainer before but it never sat right with me, either it tasted horrible or resulted in nausea the whole day. Serious mass has been tremendous. I went from 137 pounds to 152 in a little bit more than two weeks. Keep in mind I was really skinny when I started so I gained fast, now it is much much slower. Also, a few recommendations on how to drink it. I use milk, which adds more calories and has a better taste. I also use peanut butter, Nutella, and a banana. Maybe adding both Nutella and peanut butter isn't the best idea but I was aiming at 4k calories a day so it felt necessary for me. Still, do try and mix it up, the taste gets boring very very fast. Good luck gaining!
originally posted on influenster.com
I've been trying to gain weight for about 4 years, being 6ft and weighting 9st (57kg) and I was very skinny for my form, I had decided to go hard this time and my gym friend recommended this particular powder over other ones I had been previously trying as he said it had helped people with similar issues to gain weight. So I started Gym again with this shake (two scoops on a morning on rest days and 2x2 scoops morning and after gym sessions) and within a week started to notice results. Now results wont just come from gym and this shake if you're like me, I've had to stick between 3500 - 5000 calories daily, with high carb high protein foods (as lean as possible meat) and a healthy side of multivitamins. The result is I gained 11 pounds (5kg) in 4 weeks, which for me ... MoreI've been trying to gain weight for about 4 years, being 6ft and weighting 9st (57kg) and I was very skinny for my form, I had decided to go hard this time and my gym friend recommended this particular powder over other ones I had been previously trying as he said it had helped people with similar issues to gain weight. So I started Gym again with this shake (two scoops on a morning on rest days and 2x2 scoops morning and after gym sessions) and within a week started to notice results. Now results wont just come from gym and this shake if you're like me, I've had to stick between 3500 - 5000 calories daily, with high carb high protein foods (as lean as possible meat) and a healthy side of multivitamins. The result is I gained 11 pounds (5kg) in 4 weeks, which for me was mind boggling. So if you feel it's extremely hard to gain weight and are looking around, contemplate giving this a try, eat healthy and work out, I can almost promise this will work. It is hard work though, and it will cost a bit more monthly, but I feel better right now mentally and physically than I ever have in my life.
originally posted on Holland & Barrett
Not sure why people don’t like the vanilla I love it!!! Just now as excited to try the other flavours of vanilla is said to be the worst ha! I absolutely love this shake and how much calories I can get from just one drink!! I struggle to gain weight (appetite and fast metabolism issues) and this is THE best I have ever tried. I love how it does not have all of that nonsense thickening agents (guar gum, xanthan gum, etc) that makes protein shakes taste terrible! I hate the slippery and heavy texture it gives so I am absolutely thrilled that I found this one that has none of those nasty ingredients! Please don’t ever change the formulation it’s perfect!!
| Product dimensions | 21 x 21 x 27 cm; 2.98 Kilograms |
| Country of origin | USA |
| Flavour | Chocolate |
| Allergen information | Soy, Milk, Eggs |
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 | 2.72kg | Chocolate | High Calorie Weight Gain Support
Delivery $10
Optimum Nutrition Serious Mass Vanilla 2.72kg
Delivery between Thu – Mon $9.95
Optimum Nutrition Serious Mass Chocolate 2.72kg
Delivery between Thu – Mon $9.95
I bought this mass gainer after losing a few pounds due to health reasons. I used to try and drink mass gainer before but it never sat right with me, either it tasted horrible or resulted in nausea the whole day. Serious mass has been tremendous. I went from 137 pounds to 152 in a little bit more than two weeks. Keep in mind I was really skinny when I started so I gained fast, now it is much much slower. Also, a few recommendations on how to drink it. I use milk, which adds more calories and has a better taste. I also use peanut butter, Nutella, and a banana. Maybe adding both Nutella and peanut butter isn't the best idea but I was aiming at 4k calories a day so it felt necessary for me. Still, do try and mix it up, the taste gets boring very very fast. Good luck ... MoreI bought this mass gainer after losing a few pounds due to health reasons. I used to try and drink mass gainer before but it never sat right with me, either it tasted horrible or resulted in nausea the whole day. Serious mass has been tremendous. I went from 137 pounds to 152 in a little bit more than two weeks. Keep in mind I was really skinny when I started so I gained fast, now it is much much slower. Also, a few recommendations on how to drink it. I use milk, which adds more calories and has a better taste. I also use peanut butter, Nutella, and a banana. Maybe adding both Nutella and peanut butter isn't the best idea but I was aiming at 4k calories a day so it felt necessary for me. Still, do try and mix it up, the taste gets boring very very fast. Good luck gaining!
I've been trying to gain weight for about 4 years, being 6ft and weighting 9st (57kg) and I was very skinny for my form, I had decided to go hard this time and my gym friend recommended this particular powder over other ones I had been previously trying as he said it had helped people with similar issues to gain weight. So I started Gym again with this shake (two scoops on a morning on rest days and 2x2 scoops morning and after gym sessions) and within a week started to notice results. Now results wont just come from gym and this shake if you're like me, I've had to stick between 3500 - 5000 calories daily, with high carb high protein foods (as lean as possible meat) and a healthy side of multivitamins. The result is I gained 11 pounds (5kg) in 4 weeks, which for me ... MoreI've been trying to gain weight for about 4 years, being 6ft and weighting 9st (57kg) and I was very skinny for my form, I had decided to go hard this time and my gym friend recommended this particular powder over other ones I had been previously trying as he said it had helped people with similar issues to gain weight. So I started Gym again with this shake (two scoops on a morning on rest days and 2x2 scoops morning and after gym sessions) and within a week started to notice results. Now results wont just come from gym and this shake if you're like me, I've had to stick between 3500 - 5000 calories daily, with high carb high protein foods (as lean as possible meat) and a healthy side of multivitamins. The result is I gained 11 pounds (5kg) in 4 weeks, which for me was mind boggling. So if you feel it's extremely hard to gain weight and are looking around, contemplate giving this a try, eat healthy and work out, I can almost promise this will work. It is hard work though, and it will cost a bit more monthly, but I feel better right now mentally and physically than I ever have in my life.
Not sure why people don’t like the vanilla I love it!!! Just now as excited to try the other flavours of vanilla is said to be the worst ha! I absolutely love this shake and how much calories I can get from just one drink!! I struggle to gain weight (appetite and fast metabolism issues) and this is THE best I have ever tried. I love how it does not have all of that nonsense thickening agents (guar gum, xanthan gum, etc) that makes protein shakes taste terrible! I hate the slippery and heavy texture it gives so I am absolutely thrilled that I found this one that has none of those nasty ingredients! Please don’t ever change the formulation it’s perfect!!
The package, the taste and quality of this mass gainer is great, like drinking a smoothie. I usually take 2 scoop after my workout which can easily allow me to absorb enough calories and protein for my bulk. It is also cost effective. After taking this gainer, I have gained 30lbs in 3 months. Definitely will reorder and recommend to others who have no time in prepping their food and would like to bulk in a short period of time. However, if you have time to prep your own food, you should not take this mass gainer as there is a lot of sugar inside the gainer.
Serious Mass has helped me to go from 159 lbs. to 167 lbs. in about 2 months, and that is with half a serving a day. I went from 153 lbs. to 159 lbs. by eating more and strength training and then hit a wall. At 55 years and 5'9" I simply couldn't eat the amount of food required to gain more weight and strength. And as long as I still see gains while working out I will continue to go with half a serving a day.I blend a handful of frozen strawberries and frozen sliced banana with 12 oz of cold water until smooth, add half a serving of Serious Mass, blend it and then add 12 oz of whole milk for another short burst. This results in a good tasting drink that is not frothy. I take it to work in a thermos bottle and usually finish it within 5 hours. Blending it with just ... MoreSerious Mass has helped me to go from 159 lbs. to 167 lbs. in about 2 months, and that is with half a serving a day. I went from 153 lbs. to 159 lbs. by eating more and strength training and then hit a wall. At 55 years and 5'9" I simply couldn't eat the amount of food required to gain more weight and strength. And as long as I still see gains while working out I will continue to go with half a serving a day.I blend a handful of frozen strawberries and frozen sliced banana with 12 oz of cold water until smooth, add half a serving of Serious Mass, blend it and then add 12 oz of whole milk for another short burst. This results in a good tasting drink that is not frothy. I take it to work in a thermos bottle and usually finish it within 5 hours. Blending it with just water left an aftertaste that I didn't like too much.I have been using ON Whey Protein since I started working out, one serving with 12 oz of whole milk in the morning with breakfast, and then one serving with 8 oz of cold water 30 minutes after my workout in the evening. Serious Mass is a great addition that has been helping me meet my daily protein goals, gain weight and strength at the same time.
I got this product a few days ago. It tastes very good, unlike most shakes. When I blended it with milk and water, it was smooth (the thickness really depends on how much water-or whatever fluid-you add to it) and very easy to drink. It kinda tastes and smells like vanilla milkshake. I blended 2 heaped scoops with milk and water. However, I felt bloated and had slight abdominal discomfort almost all through the day. I guess I should have started with one scoop (as suggested for new users). All in all it seems good, I would just need to reduce to one scoop and keep using.
This is garbage. Do the math by reading the label. It costs a ton of money to get less nutrition than the Equate brand. Again - don't take my word for it - READ THE LABEL AND COMPARE. You need 322 grams of this crap to get 50 grams of protein. Read the Equate brand - you need about 1/5th of that amount.$28 to get four (4) servings. Do the math - that's $6.50 per serving. No big value there.You are paying for marketing. I won't buy this company's products any more now that I realize it is only about the money and I stupidly bought this because I was in a hurry.
I really enjoyed using this product, I was able to successfully bulk up to approximately 230 pounds. However, I do have a few gripes with this product. For the price, I really do wish that it had more servings. 50 dollars and only 8 servings is a lot of money to be paying per serving. There are many more things that can bulk you up for cheaper. not only that but the mass gaining ingredients in this product consist almost exclusively of sugars, which isn't good if your are trying to maximize muscle growth for your bulk. You may find yourself gaining more fat instead. Setting that aside this will definitely help you gain weight fast, and I will recommend this product especially if you have a hard time gaining weight.
I had been underweight my entire life, really struggling to gain weight. This product worked exactly as advertised, helping me gain weight and at a very affordable price when subscribing. Tasted great, especially when combined with full fat yoghurt, milk & almond butter.HEALTH WARNING - soon after using this product, my periodic blood test showed a significant decline in kidney function. 3 months later, similar results. My consultant mentioned that these results are common in younger people who take supplementary weight/muscle gain products. I immediately cancelled my subscription to this product. Fast forward to today and after another blood test my kidney function has returned to normal.My review score reflects the product itself, affordability, and how well ... MoreI had been underweight my entire life, really struggling to gain weight. This product worked exactly as advertised, helping me gain weight and at a very affordable price when subscribing. Tasted great, especially when combined with full fat yoghurt, milk & almond butter.HEALTH WARNING - soon after using this product, my periodic blood test showed a significant decline in kidney function. 3 months later, similar results. My consultant mentioned that these results are common in younger people who take supplementary weight/muscle gain products. I immediately cancelled my subscription to this product. Fast forward to today and after another blood test my kidney function has returned to normal.My review score reflects the product itself, affordability, and how well it serves its purpose. However, please be aware of potential longer term health consequences.
I tried to put the code on the website to check the authenticity but I'm unable to do so. The website responds nothing!!!!also, I've drunk this mass gainer for 5-7 times over a period of 2-3 weeks and noticed that it's causing immense bloating and pimples on my face!!! I'm never going to use it again.health-wise also, I believe it's best if we use whey protein instead of mass gainer. you can have a banana oats smoothie everyday and it gives you visible result!!something like mass gainer is definitely going to be harmful for your body!!!think before you invest your money!
| Product dimensions | 21 x 21 x 27 cm; 2.98 Kilograms |
| Country of origin | USA |
| Flavour | Chocolate |
| Allergen information | Soy, Milk, Eggs |