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Optimum Nutrition Hydrowhey vs Dymatize ISO 100

When muscle building is your primary goal, it goes without saying that protein plays a critical factor in your results. Protein contains the very building blocks of lean muscle tissue. That means you need a supplement that works fast and effectively for you to maximize your results. We're pitting the two industry giants against one another again in this protein showdown: Optimum Nutrition Hydrowhey vs Dymatize ISO 100. Let's take a look at the pros and cons of both brands to see which is worth picking up for your collection.


Optimum Nutrition Hydrowhey


Where can I buy it?

  • Here is where you can buy Optimum Nutrition Hydrowhey



  • 30 grams of hydrolysed protein per serving
  • Highly bioavailable protein
  • Provides almost 9 grams BCAAs
  • Contains digestive enzymes for better absorption



  • Possible nitrogen spiking
  • Artificial flavouring
  • Artificial sweeteners


Optimum Nutrition is no stranger to the protein supplement scene. It offers a variety of different proteins, all of which are best sellers. It's no different with its Hydrowhey. Hydrolysed whey is a very unique type of protein as it pre-broken down. That means it will get into your muscle tissue faster than ordinary whey concentrate. That's great news for your muscles post-workout.


The only downside to Hydrowhey is the possibility of nitrogen spiking. This is where amino acids are added to the formula to cause a higher protein count. While it's not that big of a deal, this means the real protein count may be lower and closer to 25 grams as opposed to 30.


Dymatize ISO 100


Where can I buy it?

  • Here is where you can buy Dymatize ISO 100



  • Hydrolysed and isolate protein
  • 25 grams of protein per serving
  • Minimal ingredients, which means less junk that you don't need
  • Rapid digestion of protein into muscle tissue
  • No fat and low cholesterol



  • Artificial flavouring
  • Artificial sweeteners


When you want a superior post-workout protein, few supplements will come close to Dymatize ISO 100. This is one of the most straight forward protein isolate supplements on the market. You're getting hydrolysed protein along with a protein isolate. Both of which are extremely bioavailable. There's artificial flavouring and sweeteners and that's it. At 25 grams of protein per serving, you can rest assured that your muscles are going to love ISO 100.


Which One Should You Buy?


Both of these protein supplements have been designed to give your muscles the amino acids they need. Amino acids are going to help boost recovery, promote growth, and even support fat burning. So which one of these brands does it better?


If you look at the labels, you're going to see that it's an even draw. Both are incredible brands. Both have high quality protein sources. Both are going to be an amazing addition to any post-workout supplement line-up.


If we had to choose then we'd go with Dymatize ISO 100. The fact that Hydrowhey may be adding in additional amino acids to help boost its protein count almost feels like a violation of trust (although it's quite common in the industry). ISO 100 is giving you 25 grams of completely usable protein with no tricks or gimmicks. Again, both are great so if the deciding factor for you is price then go with the one on sale. You can't go wrong either way.




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  1. Blomstrand E, Eliasson J, Karlsson HK, Köhnke R. Branched-chain amino acids activate key enzymes in protein synthesis after physical exercise. J Nutr. 2006 Jan;136(1 Suppl):269S-73S.


  1. Norton, Layne, Layman, Donald. Leucine Regulates Translation Initiation of Protein Synthesis in Skeletal Muscle after Exercise. J. Nutr. February 2006 vol. 136 no. 2 533S-537S.


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  1. Mourier A, Bigard AX, de Kerviler E, Roger B, Legrand H, Guezennec CY. Combined effects of caloric restriction and branched-chain amino acid supplementation on body composition and exercise performance in elite wrestlers. Int J Sports Med. 1997 Jan;18(1):47-55.


  1. De Lorenzo A, Petroni ML, Masala S, Melchiorri G, Pietrantuono M, Perriello G, Andreoli A. Effect of acute and chronic branched-chain amino acids on energy metabolism and muscle performance. Diabetes Nutr Metab. 2003 Oct-Dec;16(5-6):291-7.
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