Optimum Nutrition Pro Gainer Reviews

Over 600 Calories and 60g of Protein and Complex Carbs to Get Big*

View Product Info
Overall Rating
9.3
Out of 10
Excellent
591 Total Ratings
Verified Buyer Rating:
9.3
298 Verified Buyer Ratings
Average Taste Rating:
8.6
View Flavor Ratings
7.9
Cookies & Cream - Exclusive!
9.3
Double Chocolate
7.9
Strawberry Cream
8.7
Vanilla Custard
9.2
Banana Cream Pie
1-20 of 591 Reviews

KOBZA55's Rating
6/10
Double Chocolate
4/10

Did not mix well, did not have the best taste, did not put on the weight that I wished



Dugan94's Rating
10/10
Vanilla Custard
5/10
Double Chocolate
9/10

Works really well! Put on some nice lean muscle, with other gainers I've experienced excess fat gains, but not with this. Double chocolate is delicious, vanilla custard was pretty bad, idk why it's so hard to find a good vanilla flavor.



Biggamer99's Rating
8/10

This protein may not have the most calouries but if your looking to put on lean muscle this is the one I recommend. I have been using it for about 6 months and have put on about 20-30 pounds of muscle. But with the lack of calouries for a small guy like myself to put on muscle and expand y size you have to eat a lot along with it. The flavour is the best ive ever tried, taste amazing with almond milk.



Isra864's Rating
10/10
Double Chocolate
10/10

Excellent Product!! Couldn't get any better than this, great job ON. I've gone thru 2 tubs and have gained 20lbs of muscle. Not only does it work, it also tastes great! Its mixes good and thanks for the updated scoop, way easier to add to a shaker now.



dre130's Rating
9/10
Vanilla Custard
9/10

Really like this Gainer. Taste and mixes great. I have forgotten about shaking it up before and it basically mixed itself. I have always been a hard gainer but 2 shakes a day and hard training i have gain 12lbs only buying 2 10lb bags. In my opinion well worth the money. They have finally redesigned the scoop so it is alot better pouring into your cup.



alvintanasta's Rating
9/10
Banana Cream Pie
8/10

My first weight gainer. I love this product, it doesn't make me bloat and tastes good. If only the price were lower I would give this product a 10.



magianegra's Rating
10/10

First: I absolutely love the flavor, i'm not a fan of protein shakes, or shakes in general but this I dont mind drinking and the longer I blend it, the smoother it is. Second: I gained 3 lbs in two weeks which I think is pretty good, but I also drink a lot of it. I have about a quarter left 3 week in so i'm not sure if that's good? Third: So far i'm picking up the weight without my main worry, belly fat or at least it's producing so little my running burns it off easily. So far I basically drink it whenever i'm even slightly hungry, it's about 650 calories per serving I think it says and I mix it with 160z of whole milk. Delicious. A+



JapeCity's Rating
10/10
Double Chocolate
10/10

I've literally been trying to pack on muscle for the last few years but simply couldn't get past 155lbs. This pro gainer finally put me over the cusp of the amount of calories I burn per day. I'm about 3/4 of the way through my first bag and I've literally put on 10lbs in the last month. Every time I step in the scale my mouth drops because I can't believe how well this stuff works! It's insane. Would recommend to anyone who is serious about putting on some muscle!



alleyneroyal's Rating
10/10
Banana Cream Pie
10/10

The taste of this product alone is out of this world! This is one of the best tasting weight gainers on the market, and I have tried a few. It also works really good, I put on 10lbs of muscle using this product (along with a few other products) and I am a hard gainer. So trust me, 10lbs is a lot. I also live in Jamaica, where access to weight gaining food and food is quite expensive. So I really enjoyed seeing the results of using this product and the taste again is truly exceptional. I had to give this product a 10/10.



Redleader2013's Rating
10/10

Excellent mixability. Quality ingredients considering volume of calories (comparatively speaking) superb flavoring. Easy to down and easy on the belly. 2 a day adds 1300 calories to your deit. Fancy protein complex for a mass-gainer. Highly recommended.



rtplowman's Rating
9/10
Cookies & Cream - Exclusive!
8/10

BIG scoop is an understatement. It's a lot of powder but it gets the job done. Being always on the go, it's an easy way to get a ton of carbs and protein when I can't have a full meal. It mixes well, I use roughly 24 oz in a Blender Bottle. Consistency is thin and not tough to chug down. The flavor is so so. I normally take Muscle Pharm Combat Cookies and Cream protein, and it's not as sweet. I'll continue to use it.



omar1161's Rating
10/10
Strawberry Cream
9/10

omar1161 did not leave a written review for this product.



FadiB3's Rating
10/10
Double Chocolate
10/10

Double Chocolate is tastyyy !! I did see some gains, I m saying some because my diet was not well planned. Costs more than other Gainers. Will definitely buy back



jposton071's Rating
10/10
Banana Cream Pie
9/10

Taste great. Goes down a lot easier than a lot of other mass gainers. Put on a solid 5 pounds in the past month. Definitely purchasing again once I start running low.



garry089's Rating
10/10
Banana Cream Pie
8/10
Double Chocolate
10/10

If you're looking to pack on size, look no further. This is by far the best/cleanest mass gainer in the market especially for folks with lactose intolerance. I have been using this product for quite a few months now, gotta say it's working well for me. Here are the few interesting facts: -tastes delicious -perfect for hard gainers or someone who just want to put few extra pounds -not heavy on stomach, won't make you feel bloated -one serving equals to whopping 650 calories, high carb + protein -mixes very well in water, no need of blender, shaker cup will do just fine -plenty of aminos -a solid product for people who are lactose intolerant, not many gainers available with added lactase -easy zip bag, 8oz scoop ( all you need is one) Hope this review was helpful



omarhisham's Rating
10/10

Best gainer i ever tried , taste and mixability are AMAZING



Besho84's Rating
9/10

It worked firs use 5 kg, second use 3 kg, 3rd use nothing



Oppression57's Rating
10/10
Double Chocolate
10/10

Oppression57 did not leave a written review for this product.



trpeto517's Rating
9/10
Double Chocolate
10/10

I really love this product. Im a hard gainer so I started taking this and noticing an increase in strength and size. The Only reason I didn't give this product a 10/10 is because the 10 pound bags it comes in sucks. The zipper always breaks and never reseals. This is really annoying because I have to put all the powder in bags to keep moisture out. Overall great product, BAD packaging.



waqarulhassan's Rating
10/10
Double Chocolate
9/10

I would prefer it upon all mass gainer supplements available in market reason is nutrient and less sugar, carbs and calories.. I'm on bulking now and I take one scoop every morning and I add peanut butter, dates, almonds, walnuts, Oats and frozen fruits to make it high in protein and calories...... would buy it again


1-20 of 591 Reviews