Optimum Nutrition

Pro Complex Gainer

Pro Complex Gainer has a rating of 4.7 stars based on 7 reviews.

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Optimum Nutrition Pro Complex Gainer

What it is: Not all MASS GAINERS need to have 1000 calories. This mass gaining formula will help increase your calorie count and provide you with the nutrients you need to gain weight. It is in the Pro Series which means quality over quantity. This formula will provide with the best source of protein, the best source of carbs so that you hit your goals faster. 

How it works: Pro Complex Gainer uses Whey Protein Isolate as its main source of protein. This is the highest quality and the highest bio availability (body ability to absorb it). WPI is very lean so they bulk this formula up with a ton of high quality carbs to give it calories aimed at building mass. They use premier Maltodextrin as their carb source. Finally, ON uses Lipid (fat) blend to give the body a ready source of energy. With the combination of these three aspects in Pro Complex Gainer, you will be able to put on lean mass faster than ever before. 

Optimum Nutrition Pro Complex Gainer


Use:¬†Add 1 heaping scoop of PRO Gainer‚ĄĘ 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.

     Key Ingredients: Whey Protein Isolate 

    Optimum Nutrition Pro Complex Gainer
    Nutrition Facts

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