Isopure Zero Carb Whey Isolate Protein Powder, Unflavored 1 LB Review
ISOPURE® Unflavored Whey Protein Isolate is presented on this page as premium protein that is true to its name. Each scoop contains 25 grams of 100% pure whey protein isolate, and the product is described as stripped of fat, carbs, fillers, and sugars. The formula has no added colors, flavors or sweeteners. The page says it is perfect for mixing into favorite cold beverages, smoothies, sauces and baked goods recipes. The Nutritional Information panel highlights 25g of protein, 100% whey protein isolate, zero carbs and sugar free. The Made with Trusted Ingredients section repeats 25g protein, 0g carbs, 0g sugar, 100% whey isolate, and states the product is gluten free with no artificial flavors. The Benefits list says the powder supports muscle building and recovery, helps meet daily protein needs, offers weight management support, and supports muscle health as we age. The Suggested Use section lists three timings: post workout or other strenuous activity, first thing in the morning, and between meals. The directions say to mix 1 scoop with 6 fluid ounces of water, milk or your favorite beverage in a shaker or blender. The How to Use area describes a daily protein boost by adding one scoop to water, coffee or smoothies, a way to mix it into anything such as shakes, baked goods, oats or yogurt, and support for fitness goals through muscle recovery and daily protein intake. A comparison table on the page positions this unflavored product as offering full control and maximum versatility with 0g carbs and 100% whey isolate, while the flavored, clear and Essentials lines are described as more convenient, ready to drink or flavor forward options. The FAQ section explains that unflavored protein has a neutral taste designed to blend into foods without altering flavor. It answers that the product can be mixed into coffee, smoothies, oatmeal, yogurt or baked goods. It states that with 0g carbs and 0g sugar per serving the product is an option for low-carb and keto lifestyles. It also defines whey protein isolate as a highly filtered form of whey that removes most fats and carbohydrates, which results in a higher protein concentration per serving. The page offers a size selector with 14 servings (0.90 lb), 40 servings (2.55 lb) and 62 servings (3.96 lb). The default selection is 14 servings at a sale price of $39.99, with a listed price per serving of $2.85. Subscription options are shown with a save 20 percent on subscription orders message, plus free shipping on subscription orders and the ability to skip, pause or cancel anytime. A one-time purchase option is also listed. Footnotes state that the statements have not been evaluated by the Food and Drug Administration and that the product is not intended to diagnose, treat, cure or prevent any disease. Other footnotes note that no significant difference has been shown between RBST treated and non-RBST treated cows, that the muscle claims apply when used over time with regular resistance exercise, and that the product is not a low calorie food.
Study, Trial or Testing Result Summary
MembersHuman studies
1 of these 81 human studies gave whey protein by drip, not by mouth.
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Review Totals and Summary
Members4,975 reviews
Biohacker Summary
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RAL Summary
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More Details
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Supplement Facts
Includes 0g Added Sugars 0 g · Calcium 80 mg · Potassium 80 mg
| Calories | 100 | |
| Total Fat | 0 g | 0% |
| Cholesterol | 5 mg | 2% |
| Sodium | 160 mg | 7% |
| Total Carbohydrate | 0 g | 0% |
| Total Sugars | 0 g | |
| Includes 0g Added Sugars | 0 g | 0% |
| Protein | 25 g | 50% |
| Calcium | 80 mg | 6% |
| Potassium | 80 mg | 2% |
Other ingredients: Whey Protein Isolate, Sunflower or Soy Lecithin.
Directions: Mix 29g (About 1 Scoop) with 6-8 fl oz of your favorite flavored beverage in a shaker or blender. If a shaker or blender is not convenient, ISOPURE® Zero Carb protein can be stirred into solution with a spoon. ISOPURE® Zero Carb protein powder can also easily be mixed in with your favorite foods to help meet your daily protein needs.
Label source: Theisopurecompany · Report a label change
Where to Buy
Isopure · Walmart · Kroger
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Graded October 28, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.

