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  • Optimum Nutrition Pro Complex Gainer, Vanilla Custard, 10.16-Pounds
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Optimum Nutrition Pro Complex Gainer, Vanilla Custard, 10.16-Pounds

| 19 answered questions

List Price: $106.59
Price: $72.29 ($7.23 / pound) & FREE Shipping. Details
You Save: $34.30 (32%)
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Vanilla Custard
10 Pound
  • THE BIGGER PICTURE OF LEAN GAINERSDont judge a gainer based solely upon its calories per serving
  • Optimum Nutrition
8 new from $72.29

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Frequently Bought Together

Optimum Nutrition Pro Complex Gainer, Vanilla Custard, 10.16-Pounds + Optimum Nutrition Creatine Powder, Unflavored, 600g + BlenderBottle Classic Shaker Bottle, 28-ounce, Clear/Black
Price for all three: $94.67

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Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. Please see our full disclaimer below.

Product Description

Flavor: Vanilla Custard | Size: 10 Pound

Optimum Nutrition Pro Complex Gainer

High-Protein Weight Gainer

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 amounts of 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 a high-protein meal between meals.

Beyond The Basics

60 grams of quality proteins per scoop and 85 grams of carbohydrates to help restore glycogen levels. Also contains 24 vitamins & minerals and 5 grams of dietary fiber per serving. Ideal for stacking with other size-supporting ingredients.


Calories That Count

Recovery from heavy training requires amino acids from protein to help kick-start the recovery process as well as carbohydrates to help restore glycogen energy depleted during intense training. PRO Gainer packs plenty of both into 650 quality calories.

Micronutrient Support

The vitamin and mineral needs of weight room warriors may outweigh those of less determined individuals. That’s why PRO Gainer is formulated with a micronutrient blend of 24 vitamins and minerals to build on the amount you get from a healthy balanced diet.

Optimal Usage Occasions

Between meals, post-workout to help kick-start the recovery process and before bed to help feed recovering muscles throughout the night.

The Brand You Trust For Quality

Optimum Nutrition (ON) was founded in 1986 with a mission to set higher standards for the sports nutrition industry. As one of the few manufacturers to own and operate state-of-the-art production facilities that are GMP compliant, ON’s commitment to quality is uncompromising. You’ll appreciate the extra effort the industry leader puts into assuring ingredient purity, effortless mixing and exceptional taste.


Product Details

Flavor: Vanilla Custard | Size: 10 Pound
  • Product Dimensions: 6 x 5 x 4 inches ; 10.2 pounds
  • Shipping Weight: 10.5 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • Origin: USA
  • ASIN: B002DYIZNK
  • UPC: 748927029741
  • Item model number: OP67
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (195 customer reviews)
  • Amazon Best Sellers Rank: #8,524 in Health & Personal Care (See Top 100 in Health & Personal Care)
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Customer Questions & Answers

Customer Reviews

Chocolate flavor tastes great.
Aerohitman
If you're looking to gain weight quickly you will have to put on some fat pounds, but as you can see the muscle gained to fat ratio is great!
M. F. Arguelles
By far one of the best gainers ever!!!
LeXeN

Most Helpful Customer Reviews

44 of 46 people found the following review helpful By Amazon Customer on March 24, 2010
Verified Purchase
After much research, several years ago I started using this muscle-gainer and have enjoyed it ever since. To me it is almost the perfect work-out / weight-lifting / energy / muscle-gaining drink. It has a great amount/ratio of carbs (85g ... only 5g in sugars), protein (60g .. several types), vitamins/minerals (usually only 20%-35% RDA ... some drinks put in 100% in many areas but I want to use a multi-vitamin, GNC Mega Men, instead), and taste (I have enjoyed my favorite banana, strawberry, and vanilla). It also has low sodium (15% RDA) and cholesterol (20% RDA) relative to many other drinks I saw, which are quite high in these areas ... beware. I don't drink it every day, just usually about half a serving before a workout and half after. That gives me enough carbs/energy to enjoy the workout and then protein after for good/reasonable muscle growth, all the while staying low in body-fat. It easily mixes with lowfat milk or soy milk, and tastes good with both. I'd give it 6 stars if I could.
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49 of 55 people found the following review helpful By GnarlyAllen on March 14, 2013
Flavor Name: Double ChocolateSize Name: 10 Pound
So, here's my story...
24 years old, 160 pounds (with clothes on), really high metabolism, trouble gaining weight, even though I was regularly going to the gym. (At least 8-10 hours a week) So, I started doing some research. I found out about the Optimum Nutrition Mass Gainer, but decided that I wanted something based on muscle-building, instead of just gaining weight. Then I was turned onto the Pro Complex Gainer. It has the word Pro in it, so it has to be good, right. I couldn't find one negative review about the product, so I ordered it. I got the Double Chocolate, because (in my opinion) any other flavor would get old pretty quick. Plus, it tastes awesome if you drink it while eating a banana. Anyway, this all took place in January. So here I am, about 2 months later, and I have gained 14 pounds!! I am feeling awesome and more healthy than I was before. Plus, barely any of the weight I've gained is fat, it's almost all muscle. If you are considering products like this, then stop considering. Click the order button. Done. Good luck, fellow skinny people!!
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35 of 40 people found the following review helpful By FredMR on September 3, 2011
Flavor Name: Vanilla CustardSize Name: 10 Pound Verified Purchase
As an amateur/hobby bodybuilder, this single product has become a staple in my diet over the past 3 years. When I started getting serious about lifting again out of college, I had dropped to 145lbs from my previous high of 175lbs. My metabolism is fast, and I simply had trouble keeping up for a number of reasons: time, money, and the difficulty eating the calories I needed in solid foods. I then found this product, which has helped all three of those issues.

VALUE - At approximately $2.25 a serving (when using subscribe and save), this is one of the cheapest quality 650 calorie meals you can provide your body with. I found this to be much more cost effective than trying to put together my own meal. Thanks to Amazon's subscribe and save, the prices compete with the other bigger online supplement retailers and I don't have to worry about re-ordering.

PERFORMANCE - I can drink an entire serving in 2-5 minutes without feeling bloated/sick (taste ranges from acceptable to good - banana cream and vanilla are must tries). I have one serving every morning, and one at some point after my workout and before bed. This accounts for 1300 of my 3500 daily calorie intake. For me, without the aid of liquid weight gainers - it would be impossible to achieve my calorie goals and gain lean mass. I especially would struggle in the morning -- I often don't have time to prepare a good meal, and have trouble eating too many solid foods first thing in the morning. Also - understand that while 60 grams of protein a serving may seem like too much, this is not 60 grams of pure whey protein that is metabolized very quickly. It is packed with 7 sources of protein (faster and slower metabolized proteins) so it takes several hours for your body to metabolize the protein.
Read more ›
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16 of 18 people found the following review helpful By D on March 11, 2013
Flavor Name: Double ChocolateSize Name: 5.08 Verified Purchase
Pros: The product tastes great, and easily mixes in a blender bottle with hardly any clumps.

Concerns: The serving size is listed as "One heaping scoop (165g)". When I measured one heaping scoop on a digital spice scale, it only came out to be about 117 grams. So I am really unsure whether I can even count one serving as the 650 calories, which is something I am really trying to keep track of.

I posted a customer picture showing the scale.
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19 of 25 people found the following review helpful By Tim on February 6, 2011
Flavor Name: Double ChocolateSize Name: 10 Pound
This product is great if you're looking for a quality, easily-mixed, easily-digestable weight gainer. I've been lifting seriously for ten years and have used a number of products. This gainer is the best I have used thus far for a number of reasons.

1) It mixes easily in a shaker cup. Fully dissolves in less than two minutes and has the consistency of low-fat milk when mixed with water, making it easy to drink throughout the day. It tastes good, too.

2) Protein is of much higher quality than those found in other gainers. Better bio-availability makes a huge difference for growth and recovery. Whey isolate is the primary source. Albumen, casein, and whey hydrolysates give you both fast-absorption and a sustained release of amino acids for pre/post-workout and before bed.

3) Good blend of essential vitamins and minerals. Roughly 20-30% of your recommended daily intake per serving, which allows you to take a daily multi-vitamin if you want.

4) Easy to digest!! Other gainers and even simple protein supplements have caused me serious digestive issues and bloating. Not the case with this product. Enzymes help break-down protein sources for easy digestion. Maltodextrin, the primary carb source, is also very easy to digest.

5) Allows room for food!! Other gainers sit like a brick in your stomach for hours, making it nearly impossible to eat full meals of solid food. With this, you could easily drink a full serving right before you eat and still be hungry.

Post-workout, I combine a half serving of Pro Complex Gainer and a full scoop of Hydro Whey, which is another GREAT product from ON. Also, you can take half servings of this product if you intend to cut calories.
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Most Recent Customer Reviews

Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.