Zero Carb Isopure
Nature's Best

Zero Carb Isopure

Zero Carb Isopure!
With 50 Grams Of Protein From 100% Whey Protein Isolate!
8.6 out of 10 (632 Reviews)
3 Sizes
3 Lbs.
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12 Flavors
Alpine Punch
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Price: $42.49 ($1.93 / Serving)
Flavor Rating: 6.4
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Product Overview

25G Protein per 1 Scoop Serving
Zero/Low Carb
Gluten & Lactose Free
100% Whey Protein Isolate

That’s what we’re made of. It’s also what we stand for—protein that’s lactose-free, low calorie, with little or no fat and carbs, and no impurities. The purest stuff out there. Not to mention delicious.  Beyond quality. This is protein with taste.

Pack in powerfully pure protein, without packing on the carbs. Our 100% whey protein isolate powders amp you up, without any unwanted weight. Just pick your level: Zero Carb or Low-Carb (which also has ZERO sugar), both with 25 grams of protein per scoop. It's 100% whey protein isolate loaded with vitamins, minerals and nutrients to keep you going strong—and always without gluten, lactose, or any impurities. Made with our complete microfiltration process to be the only completely clear milk protein when dissolved in water. Available in a range of delicious flavors to mix up some seriously delicious and dynamic recipes. Note: Zero/Low Carb Isopure powders have a vitamin/mineral premix which is not soluble; they will be cloudy when dissolved.

Isopure Brand Heritage

Isopure and Nature’s Best were started by two guys named Hal and Ernie with a cement mixer and an idea to make things better. To be solvers of people's problems—active people who want protein to help them be their optimal self. For more than 30 years, we've been working to make products that offer the cleanest, purest, and most perfect protein around.

We are for people who want products that are high quality, pure, premium, authentic and effective. We are for those aspiring to be the best they can be. Weight trainers, runners, rock climbers, mothers, fathers, busy professionals – just to name a few. We make the absolute finest fuel so you can conquer your daily obstacles and reach your fitness and health goals. We aim for the highest standards. Beyond quality. Formulas with taste.

We continue to make more out of life with new premium formulas using the best ingredients possible — we uphold the highest standards of quality. So you can continue to expect the best from us, to get the best from yourself.

Ratings & Reviews

Overall Rating
632 Ratings
Verified Buyer Rating
228 Ratings
Average Flavor Rating
12 Flavors
Top Rated Flavor
Chocolate holandês com baixo teor de carboidratos
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
  • 9 Low Carb Dutch Chocolate

Thus being the best tasting for what I need I find it at its best when I use almond coconut milk and a small amount of ice blended.

Verified Buyer
  • 8 Low Carb Toasted Coconut
  • 6 Mango Peach

The low carb toasted coconut tastes good, a little over sweet, but good. The mango peach, at first I thought the flavor was good, but you can't tell exactly what flavor it is...

  • 9 Banana Cream

Best tasting protein I've tried so far.

Verified Buyer
  • 10 Banana Cream
  • 9 Strawberries & Cream

Superior profile. As good as ISO100. Excellent for people who are looking to loose weight.

Verified Buyer
  • 10 Low Carb Dutch Chocolate

Possibly one of the most delicious whey proteins out there. I use it as meal substitute, as well as post-workout meal. Makes you feel full for hours and if you blend it with a few ice cubes it's like drinking a chocolate milkshake! Try that with sugar-free chocolate syrup on top, strongly recommended!

  • 6 Low Carb Dutch Chocolate

It tastes great, but with 10.9g of BCAA and 4.6 Glutamine in every protein serving, those cheap Chinese amino acids spiking up the drink might be the case. They also had a class action lawsuit a while back for protein spiking, but I hope all is good by now.

  • 7 Low Carb Dutch Chocolate

It was pretty dificult deciding whether to give this protein powder an 8 or a 9, then i realized the only negative comment i have is due to the flavor, not the protein itself. The protein itself is low carb and low calorie which is exactly what i needed, because i was on a strict diet and needed to hit my protein intake while maintaining the lowest possible calorie consumptio, so thats a huge positive. The flavor though.. not so much. I had dutch chocolate and it was pretty good for the first 3 days, after that the consistency and flavor was getting tiresome. It tasted somewhat salty to me and i had to add very little water because it would be very watery if not. I would give the flavor a 6.5 if I could, but since I cant, I decided to round up.

  • 5 Creamy Vanilla
  • 7 Strawberries & Cream

This powder is nearly perfect as far as I'm concerned. I'm perpetually watching my carb intake even when not dieting, and this powder fits my needs perfectly. I will say that the flavor is not all that great in my opinion, but it is certainly not bad, and is not enough to keep me from purchasing the product. My first time using Isopure was back in college and I got the vanilla flavor and hated it (solely because of the flavor). At that point, how good the protein tasted was more important to me than the product itself. I ended up using about half of the 7.5 lb tub and eventually moved on to another powder. Fast forward a few years to a couple of months ago, and I decided to give Isopure another shot. This time I went with Strawberries and Cream. While the flavor was still not all that great, it was definitely acceptable, and better than I remember the vanilla being all those years ago (and for the record, I always mix with water, so mixing with milk/almond/soy milk may improve the flavor). But now, the flavor is only of minor importance to me, as I'll gladly slam a bad tasting protein shake if it does what it's supposed to do. I'm now about finished with my 7.5 lb tub, and I will never go back to those other powders. I feel stronger, I've leaned up, and my wife has even asked if I'm doing something different as she has seen a noticeable difference in muscle separation/arms/chest, etc. I attribute that not only to the fact that it is pure isolate, but that the product itself is extremely clean compared to other powders I've tried. They don't pack a bunch of unneeded garbage into the powder such as fillers/sugars/sweeteners etc. Overall, I've decided that I'm a loyal Isopure customer. As I said, the flavor isn't the greatest, but not bad, but the product itself is second to none.

Verified Buyer
  • 6 Low Carb Toasted Coconut
Verified Buyer
  • 7 Cookies & Cream

Chances are, if you are looking at this protein you are on some sort of low or no carb diet. I purchased Isopure because I was just starting out my Keto diet and needed to cut the supplement carbs wherever I could. I gave this product a try and was very satisfied with the results. The taste (Cookies and Cream) was decent. I will admit though, pre-keto I was a milk protein drinker and therefore when I got this it was only water being mixed with it. Most proteins I have had in the past with water were nasty but Isopure was actually pretty good. Eventually found that I could have almond milk with my shakes instead of just water and I will never go back. Fantastic product, quality brand and ingredients, decent taste (will try different flavor next time), highly recommend to anyone who is on the keto or another low carb diet.

Verified Buyer
  • 3 Banana Cream

Banana Cream taste awful ,coming from someone who loves bananas. I would recommend using it in a smoothy to get past the taste. other then taste this is high quality protein. no bloating. mixes well with no chunks. fills you up for 2-3 hrs before you go hungry again.

Verified Buyer
  • 10 Low Carb Dutch Chocolate

Product mixes well with any standard shaker bottle, and despite having low carbs/sugar, has an acceptable flavor. No chalky or bitter aftertaste.

Verified Buyer
  • 9 Low Carb Dutch Chocolate

I do not find the exact reason behind this product having less reviews. I have dealt with products like ISO 100, Pro Jym, Re kaged for a consistent period of time but I haven't found any product that has matched the standards of ISO Pure Zero Carb . It properly serves the need and also has a vitamin complex in its label.

  • 10 Cookies & Cream
  • 10 Low Carb Dutch Chocolate

This is the only product I have ever used. I once tasted MuscleTech's chocolate flavour but it doesn't stand a chance against Isopure's taste and results. Cookies and creams is a great flavour. It tastes good when mixed with water and the best when mixed with Milk. I used to mix it with 50% water and 50% milk sometimes just to enjoy the taste without having to worry about putting on some extra calories. Sames goes with dutch chocolate. The only thing is its low carb but it tastes so good. Especially with milk. Overall Isopure gives you best taste and results. The reason it is a bit expensive than other is that it contains BCAA and L-Glutamin in great quantity so you don't need to take those additionally. Great product for shredding fat and gaining pure muscle.

What's in Nature's Best Zero Carb Isopure

3 Lbs. Alpine Punch
Supplement Facts
Serving Size2Scoopfuls(63g)
Servings Per ContainerAbout 22
Amount Per Serving
Calories 210
Calories From Fat 10
% Daily Value*
Total Fat 1g 1%
Saturated Fat 0.5g 3%
Trans Fat 0g
Cholesterol 10mg 4%
Sodium 340mg 14%
Potassium 810mg 23%
Total Carbohydrate 0g 0%
Dietary Fiber 0g 0%
Sugars 0g
Protein 50g 100%
Vitamin A 50%
Vitamin C 50%
Calcium 60%
Iron 6%
Vitamin E 50%
Vitamin K 50%
Thiamin 50%
Riboflavin 50%
Niacin 50%
Vitamin B6 50%
Folate 50%
Vitamin B12 50%
Biotin 50%
Pantothenic Acid 50%
Phosphorus 50%
Iodine 50%
Magnesium 50%
Zinc 50%
Selenium 50%
Copper 50%
Manganese 50%
Chromium 50%
Molybdenum 50%
Chloride 20%
* Percent Daily Values (DV) are based on a 2,000 calorie diet. Your daily values may be highere or lower depending on your calorie needs.
Ion Exchange Whey (Milk) Protein Isolate, Microfiltered Whey (Milk) Protein Isolate, Vitamin/Mineral/Amino Acid Blend (Taurine, Potassium(as Potassium Chloride), Chloride(as Potassium And Sodium Chloride), Calcium(as Dicalcium Phosphate Dihydrate), Phosphorus(as Dicalcium Phosphate Dihydrate), L-Glutamine, Magnesium(as Magnesium Oxide), Vitamin C(as Ascorbic Acid), Vitamin E(as DL-Alpha Tocopheryl Acetate), Niacin, Zinc(as Zinc Sulfate Dihydrate), Vitamin A(as Palmitate), Pantothenic Acid(as D-Calcium Pantothenate), Vitamin B6(as Pyridoxine Hydrochloride), Copper(as Amino Acid Chelate), Manganese(as Manganese Sulfate Dihydrate), Riboflavin, Thiamin(as Thiamin Hydrochloride), Folic Acid, Biotin, Iodide(as Potassium Iodide), Chromium(as Amino Acid Chelate), Vitamin K, Molybdenum(as Amino Acid Chelate), Selenium(as Amino Acid Chelate), Vitamin B12), Soy Lecithin, Malic Acid, Citric Acid, Natural Flavor, Sucralose, FD&C Red 40.
This Product Is Produced In A Facility With Soy, Dairy, Egg And Wheat Ingredients, Peanuts And Tree Nuts.

Directions For Zero Carb Isopure:

For a rich, thick shake, mix 2 scoopfuls (65g) with 12 fluid ounces of water in a shaker or blender. If a shaker or blender is not convenient, Isopure can be stirred into solution with a spoon.

For healthy adults, consume enough protein to meet your daily protein requirement with a combination of high protein foods and protein supplements throughout the day as part of a balanced diet and exercise program.


Warnings: Accidental overdose of iron containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a physician or poison control center immediately.

* 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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