Dymatize Iso 100 Review: Quick Nutrition Facts and in Depth Ingredient Analysis

Image protein shakes

Dymatize makes a whole range of supplements for athletes, lifters, and the general population. But out of them all, it is their whey isolate that is arguably the most popular.

When I first tried it many years ago, it still had the old black packaging and was the first isolate I ever got my hands on. Recently, I decided to try it again, to see if things were like I remember. This Dymatize Iso 100 review examines the supplement from top to bottom, to see if hydrolyzed indeed is best.

Dymatize Iso 100 Nutrition Facts









Hydrolyzed Whey Isolate




Rounding off the supplement facts is some cocoa powder for flavoring, as well as common protein shake sweeteners sucralose and stevia. There was no acesulfame potassium or aspartame in our Fudge Brownie batch, and most of the flavors are entirely free of gluten and lactose, which may make digestion more comfortable.

Dymatize Iso 100 Ingredients

Image of chocolate casein protein powder

It has a remarkably simple formula, with only two main ingredients, both of which are derivatives of whey isolate. You could easily be forgiven for thinking they are the exact same ingredients, but as you'll learn in just a moment, there are a few subtle differences that separate these two whey proteins.

Hydrolyzed Whey Protein Isolate

The amino acids in hydrolyzed whey are isolated from each other by using heat treatment or enzymes that are similar to the ones found in the human digestive system. Compared to whey isolate or concentrate, hydrolyzed proteins digest, and can reach the muscles more rapidly, making it the superior post-workout choice.

Whey Isolate

Like hydrolyzed protein, whey isolate is processed to improve digestion. The protein is isolated by removing milk sugars (lactose) and fats, which leads to higher purity and more overall protein per 100g. While not digesting quite as quickly as hydrolyzed whey, the removal of non-proteins enable the amino acids to reach your muscles faster than whey concentrate.

What Are The Benefits?

The whey isolate contained within Dymatize Iso 100 can be very beneficial for a variety of people including bodybuilders, amateur and professional athletes, crossfitters, and also anyone looking to increase their protein intake for health or fitness.

Image of a supplement shaker bottle and scoop

However, those who will enjoy the most benefits, are those who train with weights regularly, or who struggle to get enough protein from whole foods. Fast-digesting amino acids are most in demand when muscles have been subjected to a lot of fatigue, such as after a resistance training session.

The longer you starve your muscles of amino acids, the longer they remain in a state of protein breakdown, which is the opposing force of muscle growth. But if you get a fast-digesting protein source in your system, protein synthesis becomes elevated, and you can begin the recovery process sooner.

As recovery is the foundation of both muscle growth and performance, you may well benefit from using Iso 100 strategically throughout the day, but mainly after your weight training workout. If you want a quality whey isolate that is third-party tested and certified by Informed Choice, then give Iso 100 a try today.

How To Use It Properly

  • Get a well-made shaker cup and place 1 rounded scoop (32g) inside
  • Add 5-6 oz (150-180 ml) of water or milk
  • Use water for less sweetness or try milk for more creaminess
  • Shake well and consume immediately or place in the fridge for later.

What's The Most Optimal Time To Take It?

Being an extreme kind of protein in the sense that it that digests ultra quickly, there are both excellent and poor times to use Dymatize Iso 100. Let's start by looking at the best time to take it, according to science.

After A Workout

At no other time are your muscles more fatigued and in need of amino acids, than after a hard workout. While weight training is the primary driver of muscle growth, it is the amino acids that put your hard work in the gym to good use.

Think of it like a light switch. Your training is the switch that turns on the signal for muscles to grow. The electricity is the protein. You can turn on the switch with as much force as you like, but if there's no electricity, the light will not come on, and your muscles will not grow.

Before Bed

Can you use it before going to bed?

Yes. But should you?

Probably not. Let me explain why. If you take it in the hours before bedtime, by the time you actually put your head on the pillow, it may very well have already digested, which is fine in and of itself. But what about the long, fasted hours ahead?

We still want amino acids in the blood at this time because sleep is essential for muscle growth. But we need something that digests slow, which makes Iso 100 an inferior choice for gains. The solution?

Dymatize's fast-digesting shake is a great post-workout tool for those seeking the quickest possible increase in muscle protein synthesis and recovery.

Stack it with a casein protein like Elite Casein, that effectively ‘drip feeds' your muscles with a steady supply of amino acids while you sleep.

Side Effects And Disadvantages

By far the most significant downside of Iso 100 is that it's not really fit to take before bed if you want to maximize muscle gains overnight. However, this can easily be remedied by stacking it with casein. So are there any other side effects?

Being lactose and gluten free, it is suitable for people who have sensitive stomachs, and who are lactose intolerant. That said, high protein diets are known to cause gas, which is something to keep in mind if you're eating or drinking a lot of it.

Sizes, Servings, And Scoop

It is available in 3 different sizes to suit various protein requirements and supplement budgets. All sizes come in the container format with a measuring scoop that weighs 32g.

  • 1.6 lbs (23 servings)
  • 3 lbs (43 servings)
  • 5 lbs (71 servings)

Flavors, Taste, And Mixability

You can grab Iso 100 in 12 different "indulgent flavors" including some funky ones like Orange Dreamsicle. After using a string of chocolate protein powders, we decided to go for the Fudge Brownie flavor to see if it lived up to the indulgent label.

As a huge fan of fudge, I had high hopes for this flavor, and let me tell you, it did not disappoint. I first tried it with water and was surprised at how rich the taste was for a whey isolate (which I typically find have more mild flavors).

It had a kind of chocolatey hint to it, but after giving it a swirl, the fudge started to become really noticeable, and I couldn't resist trying it with milk, as I do with all protein shakes.

As a whey isolate, the powder has excellent consistency and mixing it with milk was no problem. However, the sweetness was intensified a lot when I added 2% milk, and I could certainly see it getting a little sickly if took 2 scoops at a time, multiple times a day.

Overall though, I'm really impressed by the flavor packed into this 120 calorie shake.

How Does It Compare To Other Whey Proteins?

If you are interested to see how it fares against the competition, you can check out our table below or click the link for more reviews of the best protein powders this year.


Our Rating





Dymatize Iso 100








Nitro Tech




Overall Review

As regular users of whey protein, we were really impressed by what Iso 100 had to offer. Capable of digesting rapidly, to power up fatigued muscles, while consisting of an excellent 5.5g of BCAAs, we have no doubt that it will be a top choice for many.

As expected, we found the consistency of the powder to be top notch, and the Fudge Brownie flavor tasted delicious, although a little too sweet when we used milk. It is not the best powder to use before bed, but as a post-workout shake, it is a high performer.

With an Informed Choice for Sport certification, it is an excellent choice for athletes and lifters who want a protein powder that is third-party tested for banned substances. If you are seeking a quality whey isolate with the fastest-digesting proteins available, then give Iso 100 a try after one of your workouts in the future.

We hope that you found our Dymatize Iso review to help. Hopefully, it cleared up any questions you had.

For a comparison: Nitro Tech vs Iso 100

Dymatize ISO 100 | Fast-Digesting

Share on facebook
Share on pinterest
Share on google
Share on twitter
Share on email
Jonathan Abbott
Jonathan Abbott
Jonathan is a long time fitness enthusiast who specializes in helping others reach their goals faster with the most up to date sports science. When he's not working, you'll find him challanging his body with heavy squats and deadlifts.

Leave a Comment