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  • Nature's Best Isopure, Whey Protein Isolate, Unflavored (Zero Carb), 3-Pound Tub
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Nature's Best Isopure, Whey Protein Isolate, Unflavored (Zero Carb), 3-Pound Tub

2,140 customer reviews
| 109 answered questions

List Price: $70.00
Price: $45.03 ($15.01 / Pound) & FREE Shipping. Details
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Unflavored
3 Pound
  • Unflavored whey protein isolate that contains 26 grams per serving, of pure Whey Protein Isolate
  • All impurities typically found in most whey proteins have been removed
  • Can be added directly to hot/cold foods or beverages and the tasteless formula blends in perfectly
  • No fat, carbohydrate, sugars or lactose, artificial flavors or artificial sweeteners

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Frequently Bought Together

Nature's Best Isopure, Whey Protein Isolate, Unflavored (Zero Carb), 3-Pound Tub + BlenderBottle Classic Loop Top Shaker Bottle, Clear Black, 28 Ounce
Price for both: $52.62

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Product Description

Flavor:Unflavored  |  Size:3 Pound

Get pure naked protein in Isopure Whey Protein Isolate from Nature's Best. This formula contains 26 grams per serving of unadulterated 100% whey protein isolate. It is stripped of fat, carbs, fillers, sugars and lactose. Easy to add to any food and hot or cold beverage, and so pure you won't even taste it. Lactose and gluten free. No additives. Unflavored.


Product Details

Flavor: Unflavored | Size: 3 Pound
  • Product Dimensions: 6 x 5 x 4 inches ; 3 pounds
  • Shipping Weight: 3.4 pounds (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Origin: USA
  • ASIN: B002TG3QPO
  • UPC: 089094022457 885165423952 701563450355 885170831742 882790362755
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (2,140 customer reviews)
  • Amazon Best Sellers Rank: #684 in Health & Personal Care (See Top 100 in Health & Personal Care)
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From the Manufacturer

We're All More Than Muscle

Isopure was 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. Since then, we’ve been working for 30 years to make products that offer the cleanest, purest protein around.

We're for people who are driven to do more. People who want protein with the highest absorption rates out there. Something that’s completely lactose-free, low calorie, with little or no fat, impurities or carbs.

We aim for the highest standards. Beyond quality.

This is protein with taste.

ISOPURE Whey Protein Isolate Unflavored

Isopure Unflavored WPI powder contains 26 grams per serving of 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. Isopure Whey Protein Isolate has 5.67 grams of naturally occurring BCAA's in every serving and is Lactose and Gluten Free. It also has 2.57 grams of naturally occurring L-Glutamine in every serving. There are no additives just pure, naked protein. The microfiltration process used to create Isopure is so complete that it is the only completely clear milk protein when it is dissolved in water.

Please note that since the powders have a vitamin/mineral premix the powder will be cloudy as not all the vitamins/minerals are soluble.

  • 100% WPI
  • 0g Carbs
  • 110 Calories
  • 26g Protein

Important Information

Legal Disclaimer
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. Please see our full disclaimer below.

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

275 of 299 people found the following review helpful By A. Brown on June 25, 2012
Flavor Name: UnflavoredSize: 3 Pound Verified Purchase
I'll start by saying that I hate protein powders in general regardless of the flavor and I can't stand any of the low-calorie sweeteners on the market unnatural (asulfame k, asparatame, etc.) or natural (stevia, xylitol, luo han guo, etc.) Sadly, they all have some weird aftertaste to me which left me at a loss in the protein powder dept until I found this supplement.

There is nothing in it except the whey protein. So the unflavored they're talking about really means it just tastes like protein which isn't altogether pleasant, but it's not bad at all and I'm able to tolerate it much better than any of the flavored proteins on the market and trust me, I've tried quite a few and wasted a good bit of $.

Despite the mild flavor, I never just mix this with a liquid (milk, water, etc.) and drink it. I almost always add this to a smoothie and sometimes to oatmeal and yogurt and then it's barely noticeable except for the "fluffy" texture it adds.

So if you're like me and don't like or don't want sweeteners in your powder, this product is the way to go. Also, it's 26g protein per scoop is at the high end of the average 16-20g I usually see.
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166 of 183 people found the following review helpful By Gayle Wheat on October 25, 2010
Flavor Name: UnflavoredSize: 3 Pound Verified Purchase
I was so tired of all the too sweet protein drinks and powders, I could hardly get them down anymore. They made me gag. This one has no flavor. I put it in my coffee every morning and I don't even taste it. If you are a gastric bypass patient, as I am, and you must use protein supplements, I highly recommend this one.
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242 of 271 people found the following review helpful By JACK LOBO on January 16, 2012
Flavor Name: Alpine PunchSize: 3 Pound
I will be doing a review of all nine Perfect Zero Carb flavors in this one review, as I use them. NOT THE ISOPURE ENDURANCE you see pictured here. The reason for that is when I typed in zero carb isopure alpine punch I got the "no image". After I started the review the endurance image came up. I bought all nine flavors on the same day and am going through them alphabetically. The reason I take a protein first and foremost is for its effectivness. Taste is of minor importance. Sure I don't want to drink something that tastes horrible, but I'm not going to be a big baby if the taste isn't exactly great. First up is Alpine Punch. The taste was niether good nor bad. It was just wierd. It was a little tart and biting. As for its effectivness, I found the no carb no sugar, 50g of isolate protein to be very beneficial after a work out. I mean seriously who wants to throw all that sugar and carbs back into your body so soon after a workout. I know sugar and carbs can't be completely removed from our daily lives, but you don't need them immeadiately after a work out. That is why Isopure Perfect Zero will be my post workout drink from now on. I also take a half dosage in the morning to start my day. From here on out will be my opinions of the eight remaining flavors. Apple Melon. Now watch out, I personally think this flavor tastes too good for its own good. I'm not sure of the type of apple it has but the melon flavor seems to be honeydew. The reason I say too good for its own good is it may cause you to want to have a lot more than you should have. Like at least four servings a day. And too much non-food protein per day can be harmful to the body. So be careful with this flavor. Next up will be Banana Cream. Until then find a workout routine.Read more ›
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109 of 127 people found the following review helpful By Avidproxy on February 9, 2012
Flavor Name: Banana CreamSize: 3 Pound Verified Purchase
Whey protein powders such as Isopure have mostly been associated with bodybuilding and it is a great product for those who do. My husband who works out swears by the Isopure Zero Carb powder. Although I don't work out, I am diabetic and need to be on a balanced diet that includes protein but without significant amounts of fat. I also have to watch my carbs (sugars). Protein foods, for the most part, have a higher fat content and this is a problem since I need to keep my weight down. I'm limited to protein sources that don't have much fat and are low in carbs. This leaves greek yogurt (which I've yet to acquire a taste for) and protein powders.

The Isopure Zero Carb formula seems perfect for my needs as it balances my daily protein requirements without including a signifcant amount of fat or adding more carbs to my diet, though I wish it had a little less sodium. On days when I need to increase my total protein but my fat levels are already where they need to be, a half serving does the trick! The product mixes easily with water and tastes pretty good considering it's a protein shake. The Banana Cream has the least 'chalky' flavor of the ones I've tried. As another reviewer mentioned, don't expect a vanilla pudding taste. It is, after all, a protein shake.

For those who are counting (from the Banana Cream flavor label):

2 scoops (scoop included) mixed with 12 oz. water = 1 serving
Servings per container = 22
Calories = 210
Calories from Fat = 10
Total Fat = 1g
Saturated Fat = 0.5g
Trans Fat = 0
Sodium = 340mg
Potassium = 730mg
Total Carbohydrate = 0
Sugars = 0
Protein = 50g

Calcium 70% DV
Iron 6% DV
Chloride 20% DV

Vitamins A, C, E, B6, B12, and K, Thiamin, Riboflavin, Niacin, Folate, Biotin, Pantothenic Acid, Phosphorus, Iodine, Magnesium, Zinc, Selenium, Copper, Manganese, Chromium and Molybdenum = 50% DV
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117 of 145 people found the following review helpful By BeagleGrin VINE VOICE on April 10, 2011
Flavor Name: Natural ChocolateSize: 3 Pound Verified Purchase
This is a review of the Natures Best Isopure Natural Chocolate 3 pound tub.
My mom had to use this before and just after her gastric bypass surgery. I have never been able to use whey protein, it always left me with undesired GI side effects. I got hungry and was running out the door, and she suggested I try this "shake"
I was in such a hurry I took a larger jelly jar, added a scoop to about a cup of water, and shook it as I ran out the door.
A serving is TWO SCOOPS, but because I didn't know how it would affect me, I only did ONE scoop to start.
I hoped it wouldn't upset my stomach, but I was so hungry at that point I didn't care (side effects for other whey products often didn't till later anyway)
First was texture, NOT grainy at all, and all I did was shake it a few seconds in water.
Second was taste, it tasted great, reminded me of a more chocolately tasting YooHoo.
Third, STOPPED HUNGER, and held me for about 3-4 hours comfortably.
Fourth, is it is not flavored with artificial sweeteners. I hate those chemically tasting fake sweeteners. This product uses NO artificial sweeteners.
Fifth, this product is nutritionally fortified, not only filling, it is REALLY good for you :)
Sixth, compared to other mixes, this one is really NOT that expensive, and is MUCH cheaper than premade shakes.
Seventh, STORAGE is easy, on the shelf, no refrigeration needed till after you mix it, and then it is so yummy you won't have any left over, but if you do, then it should be refrigerated if it is in its liquid form. But dry as purchased, it takes up LESS room, great for a renter like me who has limited shelf space and only a tiny fridge.
AND, THE BEST PART, NO STOMACH UPSET AT ALL. I use this now when I need a quick snack or breakfast.
Read more ›
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Nature's Best Isopure, Whey Protein Isolate, Unflavored (Zero Carb), 3-Pound Tub
This item: Nature's Best Isopure, Whey Protein Isolate, Unflavored (Zero Carb), 3-Pound Tub
Price: $45.03
Ships from and sold by Amazon.com

Disclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.