







💥 Bulk smarter, not harder — the ultimate gainer for serious pros.
Optimum Nutrition Gold Standard Pro Gainer is a premium weight gainer protein powder delivering 650 calories, 60g of protein, and over 80g of carbs per serving. Designed for adults aiming to build muscle mass efficiently, it supports recovery with a clean formula featuring less than 8g sugar and a rich double chocolate flavor. Trusted by thousands, it’s your go-to post-workout shake or high-protein meal replacement to accelerate gains without the bloated feeling.






















| ASIN | B002DYIZM6 |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #11,825 in Health & Household ( See Top 100 in Health & Household ) #7 in Sports Nutrition Weight Gainers #1,193 in Sales & Deals |
| Brand | Optimum Nutrition |
| Brand Name | Optimum Nutrition |
| Color | Double Rich Chocolate |
| Container Type | Tub |
| Customer Reviews | 4.6 out of 5 stars 2,806 Reviews |
| Diet Type | Kosher |
| Dosage Form | Powder |
| Flavor | Chocolate |
| Global Trade Identification Number | 00748927029727 |
| Item Dimensions | 5.91 x 11.42 x 16.93 inches |
| Item Form | Powder |
| Item Weight | 4.62 Kilograms |
| Manufacturer | Glanbia Performance Nutrition |
| Manufacturer Part Number | 1077769 |
| Material Features | No Artificial Growth Hormones* |
| Model Name | GS - Pro-Gainers Weight Gainer - Protein Powder |
| Model Number | 1077769 |
| Number of Items | 1 |
| Primary Supplement Type | Vitamin A, Vitamin B12, Vitamin C, Vitamin E, Zinc |
| Product Benefits | Muscle Build, Muscle Growth, Muscle Strength, Weight Gain |
| Total Servings Per Container | 28 |
| UPC | 748927029727 |
| Unit Count | 163.04 Ounce |
B**N
Great Product! Gained 4lbs in first 2 weeks.
OVERVIEW: I've always been at a constant weight for the past 5 years hanging around 150lbs. Before I started taking this about 2 weeks ago, I weighed 150lbs. I was doing one of those Kris Gethin muscle mass workouts for about 2 weeks in as well taking pretty much just Whey as my supplemental protein. I began taking the Pro Complex Gainer twice a day with 1 shake right in the morning and 1 before bed. I found this has helped buffer my entire day with constant protein intake. This is where it helped me the most. I had a hard time hitting those ridiculous 3000 calorie marks while trying to eat just brown rice and chicken, but adding in 2 shakes brought me almost half way there. I ate normally throughout the day as this stuff doesn't sit heavy in your stomach. I found this a huge plus since I hate that bloated sluggish feeling. So that left me with 1800 calories to get to which isn't terribly difficult as I'm eating yogurt, brown rice, nuts, and chicken throughout the day. And on training days, I'll have 1 pre-workout shake and 1 post-workout shake containing protein so I would surely hit my protein marks by this time. TASTE: This is by far the tastiest of the protein drinks I've had without having to mix in fruits and yogurt and what not into it. Double Chocolate flavor is a must. PERFORMANCE: I'm at 154lbs in just 2 weeks and mostly in muscle gains so I'm excited to see where this takes me. COST: This stuff can get costly since I noticed that you supposedly need about 5 regular scoops of what you use from the Whey Protein tub to make up just 1 serving of this stuff! The scoop for this protein is like a SHOVEL. I don't even understand how you can scoop this stuff out and pour it into any cup. So I end up using the extra plastic scoop from my other whey protein to get this stuff into my bottle. Given the large serving size, I'm 3/4 done with my tub so I will likely need to buy the 10lb bag next time.
J**H
Gains are great!!
BEST gainer ever!! I really recommend it!! Flavor is great and gains are awesome!dissolves easily ,energy Level is great..I combine it with monohydrate creatine by ON,it’s a great combination and of course with a good diet,works for me,but every body is different,Try to buy specific from the ON store,it is more secure that you going to get what u pay for.
K**T
SO GOODD!
Usually never do reviews but this weight gainer is pretty good. I'm 5'7 and started at 149lbs and now I'm at 155/156lbs Pros: -Saw about 8lbs of weight gain over almost a month which is good if you want a lean bulk, if you want to gain weight fast this is not the protein powder for you. -I'm a lot less sore from my workouts. I train as a power lifter and I've noticed significantly decreased DOMS. -minimal bloating and discomfort -The taste is really good. I prefer the vanilla though because it is easier to mix with other flavors. Cons: - Slow weight gain (again not meant to bulk you up fast but slow ,steady, and lean which in the long run is better so you have less fat to cut) -You should weigh your portions, the cup they provide will definitely not get you the serving size.
J**S
Excellent Protein for Clean Bulking
Once again, Optimum Nutrition has a winner. To give you an idea of my lifestyle so you can make a comparison, my style of weight-lifting, eating, etc. is more of a "clean-bulking" program. Many will say the concept of the clean bulk is a myth, but I've done it. Is it perfect? Nah, but it works for me. I watch my diet all the time but am no calorie-counting zealot. I exercise every day of the week with five weight lifting sessions and three half-hour interval training cardio sessions (one day is combined of course). I am 5'6" and weigh 138 lbs with about 7% body fat. I am no expert on fitness but I've made it to where I am and I'm proud of it. So this review won't be the most scientific post on Amazon. First off, this is a GAINER protein. I will say that again because it merits repeating. GAINER. Despite it being visible in gigantic green letters on the package, and in the name, and in the description, I am sure some people managed to glaze over this. This is a higher calorie protein while being lower in fat, sugars, etc. so lean mass can be put on. You will put on some great muscle growth if used appropriately with exercise and proper diet. Despite the fact it's a lean gainer, some loss in definition is inevitable. Not all of those calories will go straight towards building muscle mass alone. I have been using this protein since November 2013 and I have seen some great improvements in my muscle gains and my strength shot through the roof. I am sure having the extra calories from the protein to increase muscle growth attributed to those results. Now I did experience some minor loss in definition with this protein since it is after all a GAINER; even with my constant clean diet not all of the calories went straight to my muscles some of it inevitably went to my fat reserves, particularly around the mid-section of course, but the loss in tone was minor. All in all I am thrilled with the results that this protein gave me and how much it bulked up my muscles with such little change to my "aesthetics" so to speak. The protein tastes fine. I am so sick of seeing "THIS PROTEIN DOESN'T TASTE LIKE CANDY. ONE STAR. THIS IS GROSS DO NOT BUY." If you want a candy like taste then go eat chocolate. This is a protein. If it has all the sugars and flavor additives then guess what? It defeats the purpose. Is it the best tasting one I've had? No, but I don't really care. It did it's job and that's what matters. I highly recommend this protein if you're looking to increase muscle mass without adding as much "other mass" AKA lean mass. The price is also a steal for 10 lbs. Pro Tip: If you open the box they ship it in with a knife, be careful. I learned the hard way.
B**G
Great product
Excellent protein powder that’s helped me put on extra pounds to build muscle. I use it daily and really enjoy the taste. One container lasts a little over a month, making it a solid value. Recommended
N**R
ON Gainer Helped Turn My Life Around
This product may have been almost a life saver for me. I have been using it for 10 years. I became seriously ill about a decade ago and was losing weight for unknown reasons. I am 5'10" and used to weigh in the mid 160s prior to my illness. Finally after dropping to the upper 120s my doctor recommended that I try drinking gainer shakes though he didn't mention this product in particular. I happened to mention my weight loss dilemma to my brother-in-law who pointed me to this product. So glad that he did. I started out drinking two servings per day and usually add a scoop of ice cream to it in the blender. It tastes fine to me with plain water but the ice cream makes the drink pleasingly colder. Anyhow, this put a stop to my nose diving weight and gradually pushed me into the low 130s which helped me feel some relief about my condition. About a year later I joined a gym and started working out with weights 3 times a week at least an hour each time, plus did some weight lifting at home in between. Slowly, slowly my weight raised into a more respectable mid 140s after about a year of weight lifting exercices plus this product 2X a day. Roughly 3 years later with my weight seemingly stuck in the 140s I decided to reduce it to one serving a day. I always monitor my weight and it remained basically the same. About a year ago I reduced use of this to a half serving, 6 days a week. I continue to work out at the gym and at home like usual. My upper body strength has increased especially my arms/biceps/triceps and pec muscles even at the reduced half serving of gainer plus my usual scoop of ice cream in the blender. I am happy to say my weight over the last 6 months has been lifted to almost the same level as I had prior to my illness. I am currently bumping up on the 160 lbs mark. So I have been using this for 10 years straight now plus going at my weight lifting for nearly that long a time. When I look in the mirror I grin at the results I have had over this LONG period of time. But I give a lot of credit to this gainer product and my doctors who initially encouraged me to use something like this many years back. I tend to drink mine now in the mid afternoon after my gym or home workouts and in between lunch and dinner. It does sometimes take away my appetite a bit if I drink it too close to dinner, especially back in the beginning when I was drinking two servings a day. Now at half a serving the appetite loss is much less of a problem. Will I ever stop using this altogether? Maybe, but not just yet. I do think there is a correlation between using this after a workout and building your muscle tissue so I may eternally use this at half strength based just on that. By the way, adding a scoop of ice cream to it in the blender not only makes it tastier and creamier but also adds some extra calories and calcium (I believe). The double chocolate is my favorite and adding some mint ice cream is wonderfully tasty. I think overall this product tastes great, even those times that I simply use plain water without anything more.
Y**A
Proteína
Muy buena, great taste
A**C
Up 30lbs and counting!
If you're like me, you are probably a male between the ages of 17 and 28 and have a REAAALLY difficult time putting on weight. You have probably tried other weight gainers and have been frustrated by one of the following: poor mixability leading to chunky globs of powder that are a nightmare to swallow, terrible flavoring that makes you want to shed tears at the realization of how much money you spent on a sack of god-awful tasting powder, or of course, a product in which you see little if any results from. I've been there. Keyword: been. This describes me before I found ON Pro Gainer. I am 6 feet tall and have always clocked in at about 165-175lbs. Well, in August of 2015 I had a surgery which put me on a long road of recovery. Not only was I in pain, but I completely lost my appetite and began dropping weight quickly. By the beginning of October, I was dipping down to 155lbs. So I searched for mass gainers, and stumbled across this product. While the price tag was a bit more daunting than I would usually take a gamble on, the amount of protein and calories packed into each scoop (however heaping it need be) was enticing, so I gave it a try. Now it's the end of March (7 months later) and I am currently sitting at 186lbs. Of course I've adjusted my diet so I eat more food than I previously did, but much of my gains can be attributed to the use of this product post-workout. What's even more surprising is I only use the product 3-4 times a week! It is much, much easier to keep up a workout routine when you have a good tasting shake to look forward to after you're done. I absolutely demolish the shakes I make with this powder because it is so tasty and satisfying after going hard in the gym. I use bananas, peanut butter, a big scoop of powder, creatine and whole milk, and the shakes turn out super smooth and delicious. My strength gains have shot up, and my body no longer looks like it's in starvation mode. Stop being like the old me; buy this product and stick to a gym routine and you will absolutely see increases in your strength and mass.
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5 days ago
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