Optimum Nutrition Gold Standard Pro Gainer 2.31 kg / Double Chocolate
Putting on size requires a balance of heavy training and quality nutrition. Because everyone's a little different, some have a harder time packing on muscle than others. PRO Gainer is a high-protein formula delivering calories that count during recovery. Each shake provides ample supplemental protein, carbs, vitamins and minerals to build on the amount you're getting through a balanced diet of food. Use PRO Gainer as your post-workout recovery shake and/or high-protein meal between meals. FeaturesPutting on size requires a balance of heavy training and quality nutrition. Because everyone's a little different, some have a harder time packing on muscle than others. PRO Gainer is a high-protein formula delivering calories that count during recovery. Each shake provides ample supplemental protein, carbs, vitamins and minerals to build on the amount you're getting through a balanced diet of food. Use PRO Gainer as your post-workout recovery shake and/or high-protein meal between meals.
Putting on size requires a balance of heavy training and quality nutrition. Because everyone's a little different, some have a harder time packing on muscle than others. PRO Gainer is a high-protein formula delivering calories that count during recovery. Each shake provides ample supplemental protein, carbs, vitamins and minerals to build on the amount you're getting through a balanced diet of food. Use PRO Gainer as your post-workout recovery shake and/or high-protein meal between meals. FeaturesPutting on size requires a balance of heavy training and quality nutrition. Because everyone's a little different, some have a harder time packing on muscle than others. PRO Gainer is a high-protein formula delivering calories that count during recovery. Each shake provides ample supplemental protein, carbs, vitamins and minerals to build on the amount you're getting through a balanced diet of food. Use PRO Gainer as your post-workout recovery shake and/or high-protein meal between meals.
Putting on size requires a balance of heavy training and quality nutrition. Because everyone's a little different, some have a harder time packing on muscle than others. PRO Gainer is a high-protein formula delivering calories that count during recovery. Each shake provides ample supplemental protein, carbs, vitamins and minerals to build on the amount you're getting through a balanced diet of food. Use PRO Gainer as your post-workout recovery shake and/or high-protein meal between meals. FeaturesPutting on size requires a balance of heavy training and quality nutrition. Because everyone's a little different, some have a harder time packing on muscle than others. PRO Gainer is a high-protein formula delivering calories that count during recovery. Each shake provides ample supplemental protein, carbs, vitamins and minerals to build on the amount you're getting through a balanced diet of food. Use PRO Gainer as your post-workout recovery shake and/or high-protein meal between meals.
Putting on size requires a balance of heavy training and quality nutrition. Because everyone's a little different, some have a harder time packing on muscle than others. PRO Gainer is a high-protein formula delivering calories that count during recovery. Each shake provides ample supplemental protein, carbs, vitamins and minerals to build on the amount you're getting through a balanced diet of food. Use PRO Gainer as your post-workout recovery shake and/or high-protein meal between meals. FeaturesPutting on size requires a balance of heavy training and quality nutrition. Because everyone's a little different, some have a harder time packing on muscle than others. PRO Gainer is a high-protein formula delivering calories that count during recovery. Each shake provides ample supplemental protein, carbs, vitamins and minerals to build on the amount you're getting through a balanced diet of food. Use PRO Gainer as your post-workout recovery shake and/or high-protein meal between meals.
in 22 offers
The lowest price for Optimum Nutrition Gold Standard Pro Gainer 2.31 kg / Double Chocolate right now is $112.40 at Elite Supps, compared across 21 retailers.
The all-time low was $77.65 on 11 Feb 2026 — today's price is 45% 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 16:59:56
Optimum Nutrition GS Pro Chocolate Weight Gainer Protein Powder 2.31 kg - [packaging may vary]
Free delivery
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 Gold Standard Pro Gainer 2.31kg Double Chocolate - 650 Cal, 60g Protein
Free delivery
Gold Standard PRO Gainer - 2.31kg / Double Chocolate
Free next-day delivery
Optimum Nutrition Pro Gainer - 5.08lbs Double Chocolate
Delivery $64.99
Optimum Nutrition Gold Standard Pro Gainer, 2.31kg / Vanilla Custard
Same-day delivery $12.90
Optimum Nutrition Gold Standard Pro Gainer 2.31kg / Vanilla Custard
Delivery $9.95
Optimum Nutrition - Gold Standard Pro Gainer, 2.31kg / Vanilla Custard
Free delivery between Fri – Tue
Optimum Nutrition Gold Standard Gainer Mass Gain Protein, 2.27kg / Vanilla Custard
Delivery between 15–23 June $12.95
Gold Standard Gainer by Optimum Nutrition pro double chocolate - 5 lbs
Optimum Gold Standard Pro Gainer - 2.3kg / 14 Serves Vanilla Custard
Delivery between Thu – Fri $9.95
originally posted on bodybuilding.com
If you're patient and looking to gain weight, size, and lean muscle; this is a product for you. The key to this product is to be patient though. Don't expect to take one tub or one bag and gain 15lbs. You also need to have a clean diet during use. I weighed 176lbs when I began taking this product. I started by drinking one shake a day in the morning. Over the span of about 3 months, I gained about 6lbs. I eventually plateaued and started drinking two shakes, one in the morning and one before I worked out. I got up to about 193lbs over the span of about 8 months. I stopped using it and leaned out and was able to maintain a weight of anywhere between 185 to 188lbs after I stopped using this product. I recently had oral surgery and was unable to eat solid food for ... MoreIf you're patient and looking to gain weight, size, and lean muscle; this is a product for you. The key to this product is to be patient though. Don't expect to take one tub or one bag and gain 15lbs. You also need to have a clean diet during use. I weighed 176lbs when I began taking this product. I started by drinking one shake a day in the morning. Over the span of about 3 months, I gained about 6lbs. I eventually plateaued and started drinking two shakes, one in the morning and one before I worked out. I got up to about 193lbs over the span of about 8 months. I stopped using it and leaned out and was able to maintain a weight of anywhere between 185 to 188lbs after I stopped using this product. I recently had oral surgery and was unable to eat solid food for about 2 1/2 weeks. Over this time, I lost about 6lbs. I purchased this product again to help get extra calories to make up for what I had lost, and a boost to gain some weight back. I have an ectomorph body type with a very high metabolism, and almost have to gorge myself to maintain weight. If you're in a similar situation or looking to just gain a little size, I recommend being patient and giving this product a try. It worked great for me!
originally posted on bodybuilding.com
I bought this product to help me gain more muscle, as I have hit a plateau. After a year of working out consistently (4-5 days a week) I went from weighing 120 lbs. to being a 170 lbs. lean machine. Since I hit 170 lbs. I stopped gaining weight. I had been solely relying on food to help me gain muscle and weight. I was at the point I had to consume SO much food that it was too painful for my stomach to handle every day.I bought Pro Gainer so I can get the extra calories/protien/and nutrition I need without having to give myself a stomach ache from trying to overeat to give myself the same nutrients. This product has NO EFFECT on my stomach, no bloating, and i don't feel stuffed after drinking this stuff. I bought banana cream flavor it is decent alone but adding ... MoreI bought this product to help me gain more muscle, as I have hit a plateau. After a year of working out consistently (4-5 days a week) I went from weighing 120 lbs. to being a 170 lbs. lean machine. Since I hit 170 lbs. I stopped gaining weight. I had been solely relying on food to help me gain muscle and weight. I was at the point I had to consume SO much food that it was too painful for my stomach to handle every day.I bought Pro Gainer so I can get the extra calories/protien/and nutrition I need without having to give myself a stomach ache from trying to overeat to give myself the same nutrients. This product has NO EFFECT on my stomach, no bloating, and i don't feel stuffed after drinking this stuff. I bought banana cream flavor it is decent alone but adding real bananas and strawberries along with milk and yogurt and blending it in a blender, makes it taste like a treat! If you just have a blender bottle it will mix just fine, the consistency is very thin and smooth. I prefer this consistency because its easy to drink it fast and since its thin it doesn't sit in your stomach. The price is a bit high but I belive you get you moneys worth in the end.9/10
originally posted on bodybuilding.com
A good friend of mine was using Pro Complex Gainer so I decided to give it a shot after he told me how it work wonders for him. I always thought I was doing things right and that I was destined to be small forever. However, being an ectomorph, it all came down to one thing for me, not eating enough. Thinking that I was getting enough nutrients in combination with years of half assing it at the gym is why I never saw any improvements.I bought PCG back in February and started off splitting up my serving. I would eventually end up taking two servings a day. (One after every workout and one before bed every night). I occasionally added a handful of blueberries, strawberries, a banana, and substitute milk for water. This would easily give me an extra 1000+ calories and ... MoreA good friend of mine was using Pro Complex Gainer so I decided to give it a shot after he told me how it work wonders for him. I always thought I was doing things right and that I was destined to be small forever. However, being an ectomorph, it all came down to one thing for me, not eating enough. Thinking that I was getting enough nutrients in combination with years of half assing it at the gym is why I never saw any improvements.I bought PCG back in February and started off splitting up my serving. I would eventually end up taking two servings a day. (One after every workout and one before bed every night). I occasionally added a handful of blueberries, strawberries, a banana, and substitute milk for water. This would easily give me an extra 1000+ calories and just took a couple minutes to make. In addition to eating clean and following my first actual BB program (shortcut to size) I was able to gain 10 lbs in roughly 3 months.This was the first supplement I actually started taking besides Creatine, which I still take. As much as I loved this gainer I'm switching over to Serious Mass for this month to see what my gains are there. If I'm not as satisfied as I was with PCG, I will definitely be coming back for more. Not only did I gain size, I can confidently say 90% of it was lean muscle, but I feel much stronger as well. Very impressed and happy with my results so far. I had only wished I started taking this sooner.
| Best By | June 2025 |
| Dimensions | 20.3 x 20.3 x 27.9 cm , 2.6 kg |
| Serving Size | 165 g (About 1 Scoop) |
| Servings Per Container | 14 |
Optimum Nutrition GS Pro Chocolate Weight Gainer Protein Powder 2.31 kg - [packaging may vary]
Free delivery
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 Gold Standard Pro Gainer 2.31kg Double Chocolate - 650 Cal, 60g Protein
Free delivery
Gold Standard PRO Gainer - 2.31kg / Double Chocolate
Free next-day delivery
Optimum Nutrition Pro Gainer - 5.08lbs Double Chocolate
Delivery $64.99
Optimum Nutrition Gold Standard Pro Gainer, 2.31kg / Vanilla Custard
Same-day delivery $12.90
If you're patient and looking to gain weight, size, and lean muscle; this is a product for you. The key to this product is to be patient though. Don't expect to take one tub or one bag and gain 15lbs. You also need to have a clean diet during use. I weighed 176lbs when I began taking this product. I started by drinking one shake a day in the morning. Over the span of about 3 months, I gained about 6lbs. I eventually plateaued and started drinking two shakes, one in the morning and one before I worked out. I got up to about 193lbs over the span of about 8 months. I stopped using it and leaned out and was able to maintain a weight of anywhere between 185 to 188lbs after I stopped using this product. I recently had oral surgery and was unable to eat solid food for ... MoreIf you're patient and looking to gain weight, size, and lean muscle; this is a product for you. The key to this product is to be patient though. Don't expect to take one tub or one bag and gain 15lbs. You also need to have a clean diet during use. I weighed 176lbs when I began taking this product. I started by drinking one shake a day in the morning. Over the span of about 3 months, I gained about 6lbs. I eventually plateaued and started drinking two shakes, one in the morning and one before I worked out. I got up to about 193lbs over the span of about 8 months. I stopped using it and leaned out and was able to maintain a weight of anywhere between 185 to 188lbs after I stopped using this product. I recently had oral surgery and was unable to eat solid food for about 2 1/2 weeks. Over this time, I lost about 6lbs. I purchased this product again to help get extra calories to make up for what I had lost, and a boost to gain some weight back. I have an ectomorph body type with a very high metabolism, and almost have to gorge myself to maintain weight. If you're in a similar situation or looking to just gain a little size, I recommend being patient and giving this product a try. It worked great for me!
I bought this product to help me gain more muscle, as I have hit a plateau. After a year of working out consistently (4-5 days a week) I went from weighing 120 lbs. to being a 170 lbs. lean machine. Since I hit 170 lbs. I stopped gaining weight. I had been solely relying on food to help me gain muscle and weight. I was at the point I had to consume SO much food that it was too painful for my stomach to handle every day.I bought Pro Gainer so I can get the extra calories/protien/and nutrition I need without having to give myself a stomach ache from trying to overeat to give myself the same nutrients. This product has NO EFFECT on my stomach, no bloating, and i don't feel stuffed after drinking this stuff. I bought banana cream flavor it is decent alone but adding ... MoreI bought this product to help me gain more muscle, as I have hit a plateau. After a year of working out consistently (4-5 days a week) I went from weighing 120 lbs. to being a 170 lbs. lean machine. Since I hit 170 lbs. I stopped gaining weight. I had been solely relying on food to help me gain muscle and weight. I was at the point I had to consume SO much food that it was too painful for my stomach to handle every day.I bought Pro Gainer so I can get the extra calories/protien/and nutrition I need without having to give myself a stomach ache from trying to overeat to give myself the same nutrients. This product has NO EFFECT on my stomach, no bloating, and i don't feel stuffed after drinking this stuff. I bought banana cream flavor it is decent alone but adding real bananas and strawberries along with milk and yogurt and blending it in a blender, makes it taste like a treat! If you just have a blender bottle it will mix just fine, the consistency is very thin and smooth. I prefer this consistency because its easy to drink it fast and since its thin it doesn't sit in your stomach. The price is a bit high but I belive you get you moneys worth in the end.9/10
A good friend of mine was using Pro Complex Gainer so I decided to give it a shot after he told me how it work wonders for him. I always thought I was doing things right and that I was destined to be small forever. However, being an ectomorph, it all came down to one thing for me, not eating enough. Thinking that I was getting enough nutrients in combination with years of half assing it at the gym is why I never saw any improvements.I bought PCG back in February and started off splitting up my serving. I would eventually end up taking two servings a day. (One after every workout and one before bed every night). I occasionally added a handful of blueberries, strawberries, a banana, and substitute milk for water. This would easily give me an extra 1000+ calories and ... MoreA good friend of mine was using Pro Complex Gainer so I decided to give it a shot after he told me how it work wonders for him. I always thought I was doing things right and that I was destined to be small forever. However, being an ectomorph, it all came down to one thing for me, not eating enough. Thinking that I was getting enough nutrients in combination with years of half assing it at the gym is why I never saw any improvements.I bought PCG back in February and started off splitting up my serving. I would eventually end up taking two servings a day. (One after every workout and one before bed every night). I occasionally added a handful of blueberries, strawberries, a banana, and substitute milk for water. This would easily give me an extra 1000+ calories and just took a couple minutes to make. In addition to eating clean and following my first actual BB program (shortcut to size) I was able to gain 10 lbs in roughly 3 months.This was the first supplement I actually started taking besides Creatine, which I still take. As much as I loved this gainer I'm switching over to Serious Mass for this month to see what my gains are there. If I'm not as satisfied as I was with PCG, I will definitely be coming back for more. Not only did I gain size, I can confidently say 90% of it was lean muscle, but I feel much stronger as well. Very impressed and happy with my results so far. I had only wished I started taking this sooner.
Have been ordering this product for probably the last 10 years or so.. Have had some hard times gaining and maintaining weight and this stuff has honestly been a life saver. Always double chocolate and easily the best weight gainer on the market. My only complaint is I wish they would not raise the price. Added to my cart in the morning and didn't submit til later that day and the price went up by $10. Still gonna order it but yall chill. Gas already $3+ we already broke enough.
This is honestly the best protein for weight gain that I’ve used, I love it so much and the taste is amazing. You can either blend it in a smoothie or just use a blender bottle since it dissolves easily! The service was also pretty fast and consistent. I love get Yokd and I love this product!
The quality of this company is something I don’t need to talk about, the ingredients of this specific protein is already written on it I mean you wanna gain some weight go for it because I did, but be careful to train your abs all workout days because it may increase your belly fats, the taste is AMAZING! Especially if it was mixed with another chocolate drink! So good! For your goal I think the size is good if you bought two from it.Packaging is just perfectly sealed!
Delicious and helps me eat regularly and more healthy choices. I run on caffeine, carbs and sugar. This curve those cravings and i instead drink water and avoid the easy to grab sugar or carb loaded snack from the free table. Tastes like chocolate milk but not the super sweet kind
Look at the number one ingredient first when choosing a protein powder. Number one here is maltodextrin. It's understandable, as this is a "gainer" but you're paying to take a shortcut diet wise. It's a high glycemic index carb filler and where most of the calories come from. The body absorbs it quickly, spiking your insulin level enough to be anticatabolic, but you could easily find a good whole food carb source to replace this. Maltodextrin is just like sugar and the body will store it as fat if there aren't muscles that need glycogen. Also check out the serving size, one heaping scoop might seem reasonable, but grab a kitchen scale and you'll find that it requires closer to 2 mostly full scoops to equal one serving of 165 grams of this stuff. It felt like the bag ... MoreLook at the number one ingredient first when choosing a protein powder. Number one here is maltodextrin. It's understandable, as this is a "gainer" but you're paying to take a shortcut diet wise. It's a high glycemic index carb filler and where most of the calories come from. The body absorbs it quickly, spiking your insulin level enough to be anticatabolic, but you could easily find a good whole food carb source to replace this. Maltodextrin is just like sugar and the body will store it as fat if there aren't muscles that need glycogen. Also check out the serving size, one heaping scoop might seem reasonable, but grab a kitchen scale and you'll find that it requires closer to 2 mostly full scoops to equal one serving of 165 grams of this stuff. It felt like the bag was lasting longer than the claimed 28 servings, so I measured it out on the scale and found I've been getting maybe 75% of the serving I thought I was intaking. You're honestly better off eating a fruit for carbs and using ON's normal whey and casein protein, both excellent products. If you do decide to buy this as a shortcut, don't take a whole serving at once...30 min prior to working out, take 83 grams of this (3/4 scoop), and immediately after working out, take the remaining 83 grams to equal the whole serving. It works better than just smashing all of it afterwords.(Was this review of use to you? If so, let me know by clicking "Helpful." "Like" Cheers!)
I swear Im the hardest gainer in world history & I already tried 2 extreme cycles of Hi-Tech Pharmaceuticals products w/ other GNC protein products, & I also take pretty serious sleep meds, have a very physically demanding job, commute on public transit, & only have 9 hrs./night @ home on work days. I dont need the carbs in Serious Mass, but lower calorie proteins were leaving me strained & exhausted after 7 hrs. of sleep. & I also couldnt give a stronger endorsement to Hi-Tech Pharmaceuticals Protropin, which has given me since the 1st dose a sleep quality I havent had since I was 15 yrs. old. in ‘04. GNC should offer creatine nitrate too, cuz the recipe Ive discussed here is producing results. I still have flab Im trying to get rid of & the best fat-burner Ive ... MoreI swear Im the hardest gainer in world history & I already tried 2 extreme cycles of Hi-Tech Pharmaceuticals products w/ other GNC protein products, & I also take pretty serious sleep meds, have a very physically demanding job, commute on public transit, & only have 9 hrs./night @ home on work days. I dont need the carbs in Serious Mass, but lower calorie proteins were leaving me strained & exhausted after 7 hrs. of sleep. & I also couldnt give a stronger endorsement to Hi-Tech Pharmaceuticals Protropin, which has given me since the 1st dose a sleep quality I havent had since I was 15 yrs. old. in ‘04. GNC should offer creatine nitrate too, cuz the recipe Ive discussed here is producing results. I still have flab Im trying to get rid of & the best fat-burner Ive taken so far is NDS Labs Lipo Rush XT, I got it @ a GNC brick & mortar, was the 1st fat burner I ever took last Fall, & its better than Lipodrene Hardcore which I bought from an online GNC competitor.
This is the best available gainer right now. It works amazing well and a lot better than other mass gainers. On Pro Protein Gainer has High amounts of protein and digestible amount of calories. As the studies says we can't digest more than 600 calories on a single time. On nutrition has 650 which seems legit to me. Don't get fooled by other low quality gainers which has 1000-3000 calories each serving, our body can't digest more than 600 calories!!! at a time, its the total waste of money and time and thus they also have low amount of protein. Remember: If your gainer is giving you thick shake after mixing a full scope in water, then it means it has lots of low quality protein(Soy protein) this gives you stomach pain and its really not good for your health and ... MoreThis is the best available gainer right now. It works amazing well and a lot better than other mass gainers. On Pro Protein Gainer has High amounts of protein and digestible amount of calories. As the studies says we can't digest more than 600 calories on a single time. On nutrition has 650 which seems legit to me. Don't get fooled by other low quality gainers which has 1000-3000 calories each serving, our body can't digest more than 600 calories!!! at a time, its the total waste of money and time and thus they also have low amount of protein. Remember: If your gainer is giving you thick shake after mixing a full scope in water, then it means it has lots of low quality protein(Soy protein) this gives you stomach pain and its really not good for your health and goals. _x000d_On Pro gainer has really low amount of Soy protein and its not thick at all even after mixing 1 whole big scope of it in 300 ml of water. _x000d_For massive gains give it a go On nutrition Pro gainer.
| Best By | June 2025 |
| Dimensions | 20.3 x 20.3 x 27.9 cm , 2.6 kg |
| Serving Size | 165 g (About 1 Scoop) |
| Servings Per Container | 14 |