Advanced Protein Matrix!
Contains CFM Whey Isolate, Micellar Casein And Egg Isolate!
9.1 out of 10  (128 Reviews)
1 Size
5 Lbs.
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5 Flavors
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Competitor Price: $84.99
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Our Price: $74.99 ($1.03 / Serving)
Flavor Rating: 9.0
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Product Overview

  • 25g PROTEIN
  • 5.5g BCAAs
  • Sustained-Release Protein
  • Support Muscle Growth*
  • Clean Protein
  • Amazing Taste
Nutrabolics Isobolic Flavors


Wondering how your protein stacks up? The premium timed-release protein blend of ISOBOLIC® provides unrivalled quality for all-day anabolic effects. Each serving contains 25 grams of the cleanest protein commercially available including 100% whey protein isolate, milk protein isolate, micellar casein, and ultra-high grade whey protein concentrate, all balanced in the perfect ratio. It also contains 12 grams of Essential Amino Acids (EAAs) and 5.5 grams of BCAAs to help you build more muscle. With both rapid and sustained-release protein sources, ISOBOLIC is the perfect protein for elite level quality and all-day muscle growth.*

“ISOBOLIC contains only whole protein sources with absolutely no amino spiking whatsoever. Like all Nutrabolics products, what you see on the label is inside every product. We challenge any company to match the quality of ISOBOLIC.”

- Jayson A. Wyner, Co-Founder & Co-CEO


Ratings & Reviews

Out of 10
IsoBolic Reviews
128 Total Ratings
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    9.1 | 12 Ratings
    9.1 | 5 Flavors
  • 10
    Chocolate Peanut Butter
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Out of 10

No written review.

Out of 10

First, WHY ARE MORE PEOPLE NOT TALKING ABOUT THIS COMPANY!?? Seriously the best protein I have taken, at least when it comes to a protein mix. I've tried Combat, Phase 8, Pro Complex and some other big names, but this stuff blows all of them out of the water. Some of the purest protein you can probably find, with added benefits of bcaas, CLA, flaxseed oil and what not. Plus it tastes AMAZING. Re-evaluated 2ND OPINION: Didn't see the acesulfame potassium. After reading more and more about the stuff, I'm pretty much cutting out any and all supps that have it in em. Too bad too, everything else about this product is so high quality.

Out of 10

I don't normally buy fruity flavored protein but the reviews on strawberries n cream were so high that I had to try it for myself. I can definitely see why now, the taste is amazing! The consistency was great too. It's thicker, which is hard to find in a protein that isn't pure casein. I'm definitely glad I tried this one out.

Out of 10

This is my first time ordering this product. With the exception of whey concentrate in this formula, the profile of this product is great! As far as the taste, I've had better but this one is still drinkable. I did notice some stomach discomfort/rumbling after drinking it but that's probably because this product is not lactose free. I'll keep using for now until I finish my 5lbs tub but once I'm finished with it I'm going to have to try Magnum Quattro because it's lactose free and there is none of that INFERIOR whey concentrate in it. But all and all, still a fairly decent product!

Out of 10

Really bad taste... Sorry

  • 1Chocolate
Out of 10

No written review.

  • 9Strawberry
Out of 10

Taste great! One of the best chocolate proteins out there. Mixes great and awsome texture! No bloating or upset stomach. Added CLA is a bonus! Great protein sources of Isolates

  • 10Chocolate
  • 10Chocolate Peanut Butter
Out of 10

Great, easily digestible protein. Pretty sweet with water but really shines when mixed with milk (just like a rich choc milkshake)works great with oatmeal. A great profile tops off this supplement as a top choice for anyone.

  • 9Chocolate
Out of 10

IsoBolic has a really natural sort of banana flavor. I found it easy to regularly eat in oats, shakes, etc. The fact that it's a banana flavor makes for easy integration into recipes (muffins, cookies, breads, etc.) without totally killing or overpowering the flavor of anything else. Relatively minimal fats and carbs meant I could stay within my caloric allowances in those areas while filling in some protein when needed. It might not be the most fat/carb light protein supp out there but for most I think this would be a great option

Out of 10

Picked up a 5lb tub of this from a local shop. Nearly completed it but gave remaining approx. 10 servings away. Flavor: 8/10 Cinnamon oatmeal was quite good. Was not overwhelming cinnamon flavor, just right. Occasionally looked forward to drinking. Mixability 10/10 Had zero issues with this. Mixed well, no clumps after only a few shakes and did not need a grate to assist in mixing. Ingredient profile 5/10 Protein blend which is a plus. 81% protein per scoop which is also excellent (low carbs and fats). Lost points for additions of isolated amino acids. This should not be happening for any protein products and makes me question the actual protein per serving. Value 6/10 for a protein blend this cost me more than comparable protein blend brands. Additionally should have been considerably cheaper considering the amino acid additions. Efficacy/Other: 3/10 I feel this worked about as well as many of the other protein product blends I've tried thus far, did not excel or hinder workouts and weight management. However, about half way through I started getting GI upset approx 15min after consumption. Continued until I stopped using this product. Definitely disappointed overall, would not buy again.

† This price is the retail price for this product found at one or more retail websites in the last 30 days. The price may not include shipping cost, tax, sale or promotional prices, or discounts such as member pricing. Prices may change. verifies this price every 30 days.

What's in Nutrabolics IsoBolic

Serving Size 1 Scoop (31 g)
Servings Per Container:73
Amount Per Serving % Daily Value *
Calories 125       
Calories From Fat 9       
Total Fat 1 g 2%*
Saturated Fat .5 g 3%*
Trans Fat 0 g
Cholesterol 25 mg 8%
Total Carbohydrates 4 g 1%*
Dietary Fiber 0 g 0%*
Sugars 1 g
Protein 25 g 50%*
Calcium 21%
Iron 5%
Sodium 70 mg 3%
Potassium 220 mg 6%
* Percentage of daily values are based on a 2000 calorie diet.
† Daily value not established
Other Ingredients:
Whey Protein Isolate, Milk Protein Isolate, Whey Protein Concentrate, Micellar Casein, Cocoa Powder, Natural And Artificial Flavors, Protease, Amylase, Lactase, Bromelain, Conjugated Linoleic Acid, Flax Seed Oil Powder, Cellulose Gum, Xanthan Gum, Guar Gum, Acesulfame Potassium, Sucralose.
Allergen Warning: Contains milk and soy.

Directions For IsoBolic: Mix 1 scoop (31 g) of ISOBOLIC® in 8 oz - 10 oz/250 ml - 300 ml of ice cold water or milk and shake for a few seconds. Vary the amount of liquid to achieve desired flavor and consistency. Drink 1-3 servings daily or as needed to satisfy your protein or muscle building requirements. For best results, combine with a diet and exercise program.

Warnings: For adult use only. Keep out of reach of children. Consult your physician before using the product if you have any medical condition. Do not use if you are pregnant or nursing.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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