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Optimum Nutrition Gold Standard Whey vs Dymatize ISO 100

In the protein supplement market, you have literally hundreds of options to choose from, which can understandably make you feel frustrated and confused. Two of the biggest names in the industry have been battling it out for years. Optimum Nutrition's Gold Standard Whey and Dymatize's ISO 100 are some of the best-selling proteins that you'll find but which one is better? Let's take a look at the pros and cons of each to determine which one you should be buying.


Optimum Nutrition Gold Standard Whey


Where can I buy it?



  • Micro-filtered quality (Very important)
  • Highly bioavailable (No wasted protein)
  • Blend of different protein types
  • Naturally provides glutamine and BCAAs
  • Veteran of the industry



  • Artificial flavoring
  • Artificial sweeteners
  • Cholesterol amount (depending on your dietary needs)


Optimum Nutrition has been around for years, providing you with a variety of fitness supplements and its most famous is Gold Standard Whey. This protein supplement features three protein types, giving you the advantage of amino acids for hours. Amino acids are the building blocks of muscle and they also support weight loss. Gold Standard is the ideal protein to start your day, fuel up before a workout, and to ensure your muscle gains before bed.


Dymatize ISO 100


Where can I buy it?



  • Uses cross-flow micro filtration
  • Utilizes pre-hydrolyzed protein sources (this will ensure rapid digestion AND assimilation into the muscle tissue)
  • Supplies BCAAs naturally with every serving
  • No fat and low cholesterol
  • Favorite amount bodybuilding crowd



  • Price (However, consider the fact that Protein Isolate will always be more expensive than Protein Concentrate)
  • Soy lecithin
  • Use of artificial sweeteners and flavoring


Dymatize ISO 100 quickly gained attention as THE isolate to go with when your goals include muscle and strength. Dymatize uses a unique filtration method to remove carbohydrates, fats, and unwanted elements from its product. What's more, the protein is pre-hydrolyzed. This means the protein is pre-broken down, allowing for unbelievably fast absorption and utilization by your muscle tissue. Without a doubt, it is the protein to be reaching for after an intense workout as your muscles will be demanding those amino acids and they don't want to wait.


Which One Should You Buy?


The short answer is both.


It shouldn't be looked at as which one is 'better.' You should be asking, 'How can I use both to maximize my goals?'


Each of these proteins can play an important role in your fitness journey. While Gold Standard Whey from ON makes for an ideal breakfast, pre-workout, or pre-bed protein choice, Dymatize ISO 100 is the only option post-workout. Gold Standard features a variety of protein types, which means different digestion speeds and a longer time release of amino acids. ISO 100 is for when your muscles need protein right away with no delay. Arm yourself with both and you'll reach those muscle building and fat loss goals before you know it.

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