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Optimum Nutrition

Optimum Nutrition Pro Gainer

Product Highlights

  • 650 Calories
  • 60g of Blended Whey, Casein & Egg Protein
  • 85 Grams Carbs to Help Restore Energy Levels
  • Few Sugars
  • High Protein to Carb Ratio
  • Mixes Effortlessly with a Blender, Shaker, or Spoon
  • Easy to Drink

Optimum Nutrition knows that if you’re looking to grow, there’s no way around getting in adequate calories. Sure, it may seem easier said than done at times when no matter how much you eat, the size just doesn’t seem to come despite your efforts in the kitchen. Whether it’s a matter of a fast metabolism, a lack of appetite, or simply not enough time to get in the calories you need to grow, the fact remains to gain just one extra pound, you need to consume approximately 3,500 calories-above and beyond what you normally consume through foods, beverages, and supplements in a week.

Optimum Nutrition also knows that you can’t judge a gainer solely upon its calories per serving. When it comes to fueling your body for growth, not all calories are created equally and many of the gainers out there are high in unnecessary sugar and fat. Optimum Nutrition Pro Gainer sets a higher standard, packing in 650 calories per serving with 60grams of blended protein, 85 grams of muscle fueling carbohydrates and minimal sugar.

The 60g of protein in Pro Gainer are comprised of high biological value proteins for easy absorption and optimal digestion. Next, up, you need carbs for fueling and rebuilding from your workouts and fats for fueling optimal hormone production and metabolism. Each serving of Pro Gainer provides 85 grams of carbohydrates and 4-5 grams of fiber with only 5 grams of sugar. They don’t skimp on the fat aspect either, as Pro Gainer utilizes medium chain triglycerides (MCTs) and other energy-dense lipids for metabolism and energy.

Then of course, you can’t forget about the little things like vitamins and minerals. While they may be micronutrients, they are a big player in the growth process. Without these micronutrients your body cannot effectively process proteins, carbohydrates, or fats. Pro Gainer addresses this by providing 26 vitamins and essential minerals per serving.

By focusing on quality and not quantity, and supplying complex carbohydrates, dietary fiber, medium chain triglycerides (MCTs), digestive enzymes, vitamins, essential minerals, and great taste, Optimum Nutrition has created the ideal lean gainer.

Manufacturer’s Directions:

SHAKER CUP: Add 1 heaping scoop of PRO Gainer™ to 16 oz of cold water and shake until thoroughly dissolved. TIP: Using milk will add additional calories, carbs and proteins to the nutrient profile of your gainer shake. You can also stack your shake with creatine and other size-supporting supplements.

ELECTRIC BLENDER: : By using an electric blender, you can turn your gainer shake into a nutrient-dense mini-meal. Add in fresh or frozen fruit, peanut butter, nuts, seeds and size-supporting supplements. TIP: Adding a couple of ice cubes can improve the consistency of your shake.

Optimum Nutrition Pro Gainer Nutrition Facts

Pro Gainer

Customer Reviews

Based on 8 reviews
Vanilla Custard

I saw possitive results with this mass gainer. Really good flavor and mixes well. I would say that I enjoy the animal mass gainer more, but this is a better price, so would buy this over it since this is almost as good tasting.

Great shop to hit macros + calories

For a mass gainer, this has a great ratio! Paired with a good diet, gained some lean mass


Great supplement for adding some clean mass if you know what you're doing and shipping experience was amazing! No complaints

Suppz delivers

Bought this to help a girl who is having a hard time gaining weight to stay healthy. Product was delivered without complications and she is enjoying chocolate multiple times a day.


Amazing product when you need to replace a meal or boost protein intake in a high prot. diet. Great taste and flavor. Smart choice. =)