Pro Gainer
Optimum Nutrition

Pro Gainer

Whey Protein Powder for Serious Muscle Gain*
Over 600 Calories and 60g of Protein and Complex Carbs to Get Big*
9.2  out of 10  (740 Reviews)

Product Overview

Taste the Gains
Optimum Nutrition Pro Series
  • 60 Grams of High-Quality Protein to Help Kick-Start Recovery
  • 85 Grams of Carbohydrates to Help Restore Energy Levels
  • 650 Calories per Serving With Just 1 Gram of Added Sugar
  • 22 Vitamins & Minerals Because the Nutrient Needs of Very Active Individuals May be Greater Than Less Active People
Optimum Nutrition Pro Gainer
Pro Gainer At A Glance. What - Weight Gain Formula. Usage Occasion - After training or Between Meals. Training Support - Helps Build Muscle and Restore Energy Levels*

Ratings & Reviews

Overall Rating
740 Ratings
Verified Buyer Rating
422 Ratings
Average Flavor Rating
5 Flavors
Top Rated Flavor
Double Chocolate
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Aug 15, 2019
Verified Buyer
  • 10 Vanilla Custard

One of the best protein poweder that I've tried. It mixes really well and it has a very good taste. For muscle gain is the perfect combination since it has 60g of protein and just 650 calories.

Aug 09, 2019
Verified Buyer

Love this product and have used it for a very long time, but after the price jump to $99, it just simply isn't worth it for me anymore. Way too expensive. Very disappointed in ON's decision to raise the price on this, and will not be purchasing again until they drop the prices significantly.

Aug 06, 2019
Verified Buyer
  • 1 Banana Cream Pie

Can we talk about the thirty dollar price hike for literally no reason? Peace out Optimum, its been real..

Aug 05, 2019
Verified Buyer
  • 8 Banana Cream Pie

Way too expensive. Been using this protein for along time. It is great weight gainer, but the price has gone up. Not gonna buy it for $ 99 .

Aug 04, 2019
Verified Buyer
  • 9 Double Chocolate

Great product but what the heck is up with the pricing? It used to be $69 and now its $99? That is a 43.5% price raise. Not worth it anymore, will stop buying.

Jun 30, 2019
Verified Buyer
  • 8 Vanilla Custard

I really do like the product, however in the last 2 months, the price on this product has risen from $69 to $99! That is crazy! Hopefully, they go back to their old pricing soon.

Jun 30, 2019
Verified Buyer
  • 10 Double Chocolate

i'm not gonna lie i love this product, but $99.99 is way too much. it used to be around $70 i don't know why it jumped so high!

Jun 27, 2019
Verified Buyer
  • 10 Double Chocolate

I gotta admit, I waited for a sale and bought two more bags, not I see the regular price went up AGAIN to $100. (That's two MAJOR price hikes in less than 60 days. I bought 2 bags not even 2 weeks ago, they were 80$. I originally bought the first two bags in April when they were 60$!!!) I don't even think with an aggregate 35% off (when you stack discounts with sales/all access discount) that it's a deal anymore. I think I am going to shop elsewhere. This is NUTS.

May 27, 2019
Verified Buyer
  • 10 Double Chocolate

I used this everyday for the past 3 years. The price used to be $60 something and now its $80.14??? What is with the massive price hike?? I checked on Amazon and it is $61. I love but this price is ridiculous!!

May 12, 2019
Verified Buyer
  • 1 Banana Cream Pie
  • 1 Vanilla Custard

I got hemorrhods with this proudact tast good but I don’t recommend this I use optimum nutrition for long time but this one make problem for me

May 07, 2019
Verified Buyer
  • 10 Double Chocolate

Best on the market by far barely any sugar. I've always been a hard gainer started using this back in march. I was 6ft 141 pounds. 3 months later i'm 165 pounds been working out 3 times a week. Couldn't ask for a better product.

Apr 18, 2019
Verified Buyer
  • 10 Double Chocolate

As a hard gainer, been using this for years. Helped me break weight plateaus consistently. You won't find a better mix of protein, calories, etc. with any other weight gainer. It also tastes very good

Mar 19, 2019
  • 10 Double Chocolate
Feb 16, 2019
Verified Buyer
  • 10 Cookies & Cream - Exclusive!

Personally I love the flavor, because it doesn't really taste like anything, really easy to put down.

Dec 12, 2018
Verified Buyer
  • 10 Double Chocolate

Been using it for 3 years now mixed with 2 cups of 2% milk. I drink 3 a day and eat 2 real meals a day. Not sure if thats a healthy choice, but I dont get hungry often and Id rather drink my food, lol. When i first started taking it i was 135lbs 5'9'' 3 months later with everyday workouts i got up to 155lbs, abs still showing. a year after that 176lbs, abs kinda visible. Jan of this year, Stopped working out, still drinking the shakes, just 2 a day instead, since im no longer lifting everyday. Down to 161lbs. abs kinda visible.. I think its a good product, mixes well in a blender. Clumps in a shaker (maybe I had a crappy shaker?), clumps with the primitive spoon method. Would love if they came out with an everyday all day healthy meal replacement Id pay double!

3 Sizes
5.09 Lbs.
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4 Flavors
Banana Cream Pie
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Price: $54.99  ($3.93 / Serving)
Flavor Rating: 8.8

What's in Optimum Nutrition Pro Gainer

5.09 Lbs. Banana Cream Pie
Serving Size 1 heaping scoop (165 g)
Servings Per Container14
Amount Per Serving
Calories 650       
% Daily Value *
Total Fat 8 g 10%
Saturated Fat 3.5 g 18%
Trans Fat 0 g       
Cholesterol 80 mg 27%
Sodium 390 mg 17%
Total Carbohydrate 85 g 31%
Dietary Fiber 5 g 18%
Total Sugars 6 g       
Includes 1g Added Sugars 2%
Protein 60 g 120%
Vitamin D 0 mcg 0%
Calcium 540 mg 40%
Iron 4.8 mg 25%
Potassium 350 mg 8%
Vitamin A 290 mcg 30%
Vitamin C 23 mg 25%
Vitamin E 5.3 mg 35%
Thiamin .3 mg 25%
Riboflavin .4 mg 30%
Niacin 4.2 mg 25%
Vitamin B6 .4 mg 25%
Folate 130 mcg 35%
Vitamin B12 1.1 mcg 45%
Biotin 58 mcg 190%
Pantothenic Acid 2 mg 40%
Phosphorus 330 mg 25%
Iodine 29 mcg 20%
Magnesium 125 mg 30%
Zinc 2.9 mg 25%
Selenium 12 mcg 20%
Copper .4 mg 45%
Manganese .8 mg 35%
Chromium 37 mcg 110%
Molybdenum 20 mcg 45%
Chloride 180 mg 8%
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
Maltodextrin, Protein Blend (Whey Protein Isolate, Whey Protein Concentrate, Calcium Caseinate, Egg Whites, Whey Peptides, Whey Glutamine Peptides), Lipid Blend (Medium Chain Triglycerides, High Oleic Sunflower Oil), Partially Hydrogenated Guar Gum, Natural And Artificial Flavor, Lecithin, Vitamin and Mineral Blend (Dimagnesium Phosphate, Calcium Carbonate, Tricalcium Phosphate, Maltodextrin, Ascorbic Acid, Ferric Orthophosphate, Molybdenum Amino Acid Chelate, D-Alpha Tocopheryl Acetate, Boron Amino Acid Chelate, Niacinamide, Zinc Oxide, Manganese Sulfate, D-Calcium Pantothenate, Selenomethionine
Pyridoxine Hydrochloride, Vitamin A Palmitate, Cupric Oxide, Chromium Polynicotinate, Thiamin Hydrochloride, Riboflavin, Beta Carotene, Folic Acid, Biotin, Potassium Iodide, Cyanocobalamin), Salt, Carbogen® Enzyme Blend (Maltodextrin, Amylase, Cellulase, Hemicellulase), Aminogen® Protease, Sucralose, Acesulfame Potassium, Lactase.
Contains: Milk, Egg, Soy, and Wheat.

Directions For Pro Gainer: Add 1 heaping scoop of PRO Gainer™ to 16 fluid ounces of cold water or milk in a shaker cup. Close tightly and shake until thoroughly mixed. TIP: By using an electric blender, you can stack this size supporting formula with fresh/frozen fruits, peanut butter, nuts, seeds and other nutrient-dense options. For best results, use in conjunction with a healthy, balanced diet and well-structured exercise program.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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