Natural - UnflavoredUnflavored | GNC

Nature's Best® Natural Isopure


Item # 916091


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Size: 3 lb(s)

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Isopure Unflavored WPI powder contains 26 grams per serving of unadulterated 100% Whey Protein Isolate, stripped of fat, carbs, fillers, sugars and lactose. Easy to add to any food and beverage (hot or cold), and so pure you won’t even taste it.

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.


Add one rounded scoop of Isopure unflavored whey protein isolate to any of your favorite foods to increase your daily quality protein consumption. Isopure mixes with a spoon and is easily added to hot food, cold food or beverages. Drink one serving daily.
This product is produced in a facility with soy, dairy, egg and wheat ingredients, peanuts and tree nuts.


Notice: Use this product as a food supplement only. Do not use for weight reduction.

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

Other Ingredients

Ion Exchange Whey (milk) Protein Isolate, Microfiltered Whey (Milk) Protein Isolate, Soy Lecithin
Dist. By:
Nature's Best®
Hauppauge, NY 11788

Nutrition Facts

Serving Size  1 Heaping Scoop(s)
Servings Per Container  47

Amount Per Serving     % DV

Calories 110  
  Calories from Fat 0  

Total Fat 0g  
  Saturated Fat 0g  
Trans Fat 0g  
Cholesterol 5mg   2%
Sodium 170mg   7%
Potassium 20mg   1%
  Dietary Fiber 0  
Protein 26g   52%

Vitamin A 0   0%
Vitamin C 0   0%
Iron 0   4%
Vitamin E 0   0%
Vitamin K 0   0%
Thiamin 0   0%
Riboflavin 0   0%
Vitamin B6 0   0%
Vitamin B12 0   0%
Phosphorous 0   2%
Iodine 0   0%
Magnesium 0   2%
Zinc 0   0%
Selenium 0   0%
Copper 0   0%
Chloride 0   20%

Calcium  0   **
Pantothenic Acid   0   **

** Daily Value (DV) not established.


4.9 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Tastes Pretty Good
I was surprised at the size of the bottle but it contains enough powder for at least a month, maybe a week or two more. And, I was pleasantly surprised by the vanilla flavor. It does taste much better than other similar products I've tried and the price is right.
January 15, 2018
3 weeks ago
protein powder
i'm using this product as a dietary supplement after my bariatric surgery. I like this product compared to the other powders available in the market. its very light and easy to digest, compared to the other powders that leave a gritty, pasty taste and feel heavy after drinking. I like it unsweetened powder because that gives me an option to add my own flavor, sweet or savory. It also lets me control the amount of sweetness in my shake, because i like it less sweet. Sometimes I mix some instant coffee which actually comes out very good. One scoop of this powder gives almost 20 gram of protein, while the other products, i used 2 scoops. Isopure is a little more expensive than the others available, but the amount of powder used in one shake is less , so it lasts longer than the others. Overall i'm very happy with this product.
January 11, 2018
3 weeks ago
I use unflavored Isopure because it is pure whey. I donâ??t want any additional chemicals or flavorings in my protein powder. It is excellent. When I want to add flavor I just make a shake with milk, and banana or add a little OJ. Otherwise I just drink it straight with water. Pure protein!
January 9, 2018
1 month ago
Itâ??s a great product.
January 3, 2018
1 month ago
Perfect protein powder.
The pure protein with no additives is just what I have been looking for. It mixes well into my daily smoothies.
December 2, 2017
2 months ago
Love it. The flavour is so much better than other vanilla proteins
November 8, 2017
3 months ago
Excellent Clean Whey Protein
Have been looking for a good clean whey and not ground up sawdust, and this really fits the mold. Would highly recommend for a good whey protein
November 2, 2017
I have tried many different protein powders and this one is by far the best. Knowing it's clean and without any synthetic ingredients makes it that much better. It mixes up better than any I've tried. The texture is always creamy and it never separates from the crushed ice.
September 14, 2017
Excellent source of unflavored whey protein!!!!! we prefer the unflavored, or plain, and add our own flavors based on preferences at preparation!!!
August 1, 2017
6 months ago
Great Product
I was looking for a clean, quality whey protein isolate and this is it. Very satisfied with it and would recommend it to others. No sucralose or artificial anythings.
July 26, 2017
7 months ago