

💥 Double Chocolate Gains, No Compromise!
Optimum Nutrition GS Pro Gainer is a scientifically formulated weight gainer protein powder delivering 650 calories, 60g of high-quality protein, and 85g of carbohydrates per serving. Enhanced with 32 vitamins and minerals including immune-supporting Vitamin C and Zinc, it supports muscle growth, recovery, and overall wellness. Its smooth double chocolate flavor mixes effortlessly, making it the go-to post-workout or between-meal shake for active professionals serious about gains.





















| ASIN | B0015R3A1S |
| ASIN | B0015R3A1S |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #11,136 in Health & Household ( See Top 100 in Health & Household ) #9 in Sports Nutrition Weight Gainers #1,139 in Sales & Deals |
| Brand Name | Optimum Nutrition |
| Color | No Color |
| Container Type | Bag |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,802) |
| Date First Available | April 28, 2004 |
| Department | unisex-adult |
| Diet Type | Kosher |
| Dosage Form | Powder |
| Flavor | Double Chocolate |
| Global Trade Identification Number | 00748927029710 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions | 8.06 x 8.06 x 11.18 inches |
| Item Form | Powder |
| Item Weight | 5.09 Pounds |
| Item model number | 1077890 |
| Manufacturer | Optimum Nutrition - NutWell |
| Manufacturer | Optimum Nutrition - NutWell |
| Manufacturer Part Number | 1077890 |
| Material Features | Sugar Free |
| Model Name | GS - Pro-Gainers Weight Gainer - Protein Powder |
| Model Number | 1077890 |
| Number of Items | 1 |
| Primary Supplement Type | Vitamin C |
| Product Benefits | Muscle Growth, Weight Gain |
| Product Dimensions | 8.06 x 8.06 x 11.18 inches; 5.09 Pounds |
| Total Servings Per Container | 14 |
| UPC | 748927029710 |
| Unit Count | 81.44 Ounce |
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.
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**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
M**R
The packaging was great and genuine product. This product only will work when you have strict diet.
R**I
Might be original but can't see any effects had used whey protein in past which was better as per me
R**.
ON has never disappointed.
H**A
The best in terms of lean muscle mass and strength build up!! 10/10
M**M
I did like the taste It’s not too sweet like other gainers which is good I didn’t like that one serving is almost two scoop One scoop is (100gm)
Trustpilot
1 month ago
2 months ago