Best Unflavored Isopure Zero Carb Protein Powder of 2025

Last updated on 30/09/2025
Advertising disclosure
Advertising disclosure
Most Relevant
Most Relevant
Best Choice
1
The Organic Protein Co. - Pure Unflavoured Organic Whey Protein Powder | No Additives, Undenatured, Bioactive, UPF Free, No Emulsifiers, Primarily Grass Fed, Vegetarian, Gluten Free – 1.2kg
The Organic Protein Co. - Pure Unflavoured Organic Whey Protein Powder | No Additives, Undenatured, Bioactive, UPF Free, No Emulsifiers, Primarily Grass Fed, Vegetarian, Gluten Free – 1.2kg
The Organic Protein Company
Free Shipping
Why we love it
  • Pure organic grass-fed ingredient.
  • Quick body absorption.
  • Ideal for vegetarians.
Main Highlights
  • JUST ONE INGREDIENT: No chemicals, additives, ultra-processed foods (UPFs), sweeteners, flavourings, emulsifiers, thickeners, or any of that nonsense. Just pure organic whey protein from primarily grass fed cows grazing on open pastures in the UK and other European countries. Batch tested, with nutritional test certificates published for every batch, from an independent lab
  • UNDENATURED & BIOACTIVE: With naturally occurring Alpha Lactalbumin, Beta Lactoglobulin, Immunoglobulin G (IgG), and Lactoferrin. These useful bioactive proteins & antibodies are also found in human breast milk (except for B. Lactalbumin). With too much heat they’re denatured, so they can’t be utilised by our bodies. Good news: 3rd party testing shows 80% of our whey protein remains completely undenatured. Denatured whey protein is still valuable muscle food, just without the bioactive benefits.
  • CLEAN CREAMY TASTE: Gently filtered from fresh whey at a cutting-edge ceramic cold filtration facility without any chemicals or excessive heat. The result is a delightful clean creamy taste, free from weird flavours, odd aftertastes, and absolutely no grittiness at all. This almost a totally flavourless protein powder, if not for the irresistible creaminess.
  • EASY TO DIGEST: Each 25g serving contains 19.8g of protein that is fast to digest, so our bodies can break it down quickly to get to the good stuff. Whey protein is one of the mostly highly bioavailable protein sources, put to work more speedily and efficiently by our bodies than just about any other protein source. Fun fact: skimmed milk powder = 50% lactose. Our whey protein = 3% lactose, a nearly 95% reduction, so those with lactose sensitivity are less likely to experience bloating & other issues.
  • PREMIUM VEGETARIAN PROTEIN: A natural vegetarian protein powder, packed with highly bioavailable naturally occurring essential & branched chain amino acids (BCAAs). Our bodies are unable to produce these vital building blocks of healthy muscle tissue, so dietary sources are needed. We use fresh liquid whey, a by-product from cheesemakers using friendly bacteria to lightly ferment the milk in order to separate the curds from the whey, therefore no animal rennet is needed.
Show More
9.8
Exceptional
9.8
Exceptional
The Organic Protein Company
The Organic Protein Co. - Pure Unflavoured Organic Whey Protein Powder | No Additives, Undenatured, Bioactive, UPF Free, No Emulsifiers, Primarily Grass Fed, Vegetarian, Gluten Free – 1.2kg
Free Shipping
Why we love it
  • Pure organic grass-fed ingredient.
  • Quick body absorption.
  • Ideal for vegetarians.
Main Highlights
  • JUST ONE INGREDIENT: No chemicals, additives, ultra-processed foods (UPFs), sweeteners, flavourings, emulsifiers, thickeners, or any of that nonsense. Just pure organic whey protein from primarily grass fed cows grazing on open pastures in the UK and other European countries. Batch tested, with nutritional test certificates published for every batch, from an independent lab
  • UNDENATURED & BIOACTIVE: With naturally occurring Alpha Lactalbumin, Beta Lactoglobulin, Immunoglobulin G (IgG), and Lactoferrin. These useful bioactive proteins & antibodies are also found in human breast milk (except for B. Lactalbumin). With too much heat they’re denatured, so they can’t be utilised by our bodies. Good news: 3rd party testing shows 80% of our whey protein remains completely undenatured. Denatured whey protein is still valuable muscle food, just without the bioactive benefits.
  • CLEAN CREAMY TASTE: Gently filtered from fresh whey at a cutting-edge ceramic cold filtration facility without any chemicals or excessive heat. The result is a delightful clean creamy taste, free from weird flavours, odd aftertastes, and absolutely no grittiness at all. This almost a totally flavourless protein powder, if not for the irresistible creaminess.
  • EASY TO DIGEST: Each 25g serving contains 19.8g of protein that is fast to digest, so our bodies can break it down quickly to get to the good stuff. Whey protein is one of the mostly highly bioavailable protein sources, put to work more speedily and efficiently by our bodies than just about any other protein source. Fun fact: skimmed milk powder = 50% lactose. Our whey protein = 3% lactose, a nearly 95% reduction, so those with lactose sensitivity are less likely to experience bloating & other issues.
  • PREMIUM VEGETARIAN PROTEIN: A natural vegetarian protein powder, packed with highly bioavailable naturally occurring essential & branched chain amino acids (BCAAs). Our bodies are unable to produce these vital building blocks of healthy muscle tissue, so dietary sources are needed. We use fresh liquid whey, a by-product from cheesemakers using friendly bacteria to lightly ferment the milk in order to separate the curds from the whey, therefore no animal rennet is needed.
Show More
Value for Money
2
BioTechUSA Iso Whey Zero Natural Protein Powder | 80% Protein | Naturally Flavoured | Gluten-Free | Lactose-Free | No Additives | No colorings | 908 g | Strawberry
BioTechUSA Iso Whey Zero Natural Protein Powder | 80% Protein | Naturally Flavoured | Gluten-Free | Lactose-Free | No Additives | No colorings | 908 g | Strawberry
BioTechUSA
Why we love it
  • High protein content supports fitness.
  • Free from additives and preservatives.
  • Gluten and lactose-free options available.
Main Highlights
  • 🌿 ISO WHEY ZERO NATURAL: Premium protein isolate with 80% protein content for your fitness journey.
  • 🚫 NO ADDITIVES: No colourings, no artificial aroma, no sweeteners, and free from palm oil and preservatives.
  • 🌾 GLUTEN & LACTOSE FREE: Compliant with European Union regulations, making it suitable for gluten-free diets. Iso Whey Zero Natural is lactose free as well.
  • 🍽️ VERSATILE USAGE: Unflavored for versatile use – add to porridge, pancakes, or shakes without altering flavors.
  • 🌈 MIX & MATCH: Iso Whey Zero Natural is available in 3 flavours. Elevate your protein game and combine 2 flavours to create something new!
Show More
9.7
Exceptional
9.7
Exceptional
BioTechUSA
BioTechUSA Iso Whey Zero Natural Protein Powder | 80% Protein | Naturally Flavoured | Gluten-Free | Lactose-Free | No Additives | No colorings | 908 g | Strawberry
Why we love it
  • High protein content supports fitness.
  • Free from additives and preservatives.
  • Gluten and lactose-free options available.
Main Highlights
  • 🌿 ISO WHEY ZERO NATURAL: Premium protein isolate with 80% protein content for your fitness journey.
  • 🚫 NO ADDITIVES: No colourings, no artificial aroma, no sweeteners, and free from palm oil and preservatives.
  • 🌾 GLUTEN & LACTOSE FREE: Compliant with European Union regulations, making it suitable for gluten-free diets. Iso Whey Zero Natural is lactose free as well.
  • 🍽️ VERSATILE USAGE: Unflavored for versatile use – add to porridge, pancakes, or shakes without altering flavors.
  • 🌈 MIX & MATCH: Iso Whey Zero Natural is available in 3 flavours. Elevate your protein game and combine 2 flavours to create something new!
Show More
3
Isopure Chocolate Whey Protein Isolate Powder, High in Protein with 25 g per Serve, Low in Sugar, No Artificial Flavours or Sweeteners, Made with Only 6 Ingredients, 480 g
Isopure Chocolate Whey Protein Isolate Powder, High in Protein with 25 g per Serve, Low in Sugar, No Artificial Flavours or Sweeteners, Made with Only 6 Ingredients, 480 g
Isopure
20% OffFree Shipping
Why we love it
  • Pure ingredients you can trust.
  • High protein for daily support.
  • No artificial flavors or sweeteners.
Main Highlights
  • MADE WITH INGREDIENTS YOU NEED, NOTHING YOU DON'T: Containing only six ingredients, including 100% pure whey protein isolate because when it comes to looking and feeling good, LESS IS MORE
  • 25 G HIGH PROTEIN PER SERVING: Delivers 25 g protein from 100% Whey Protein Isolate to complement your daily routine and support your protein intake
  • LOW SUGAR AND LOW FAT: Isopure Chocolate Whey Isolate delivers quality protein with minimal sugar and fat, an effortless way to boost your intake without unecessary extras
  • NO ARTIFICIAL FLAVOURS OR SWEETENERS: Enjoy a rich chocolate protein powder with simple ingredients and no artificial flavours, just great-tasting nutrition
  • EASY TO SHAKE, BLEND, OR BAKE: Mix with dairy or plant-based milk, blend into smoothies, or use in baking to make protein brownies, protein pudding, and more; however you take it, Isopure Whey Protein Isolate fits effortlessly into your lifestyle; contains Steviol Glycosides from Stevia, with no artificial sweeteners
Show More
9.6
Superb
9.6
Superb
Isopure
Isopure Chocolate Whey Protein Isolate Powder, High in Protein with 25 g per Serve, Low in Sugar, No Artificial Flavours or Sweeteners, Made with Only 6 Ingredients, 480 g
20% OffFree Shipping
Why we love it
  • Pure ingredients you can trust.
  • High protein for daily support.
  • No artificial flavors or sweeteners.
Main Highlights
  • MADE WITH INGREDIENTS YOU NEED, NOTHING YOU DON'T: Containing only six ingredients, including 100% pure whey protein isolate because when it comes to looking and feeling good, LESS IS MORE
  • 25 G HIGH PROTEIN PER SERVING: Delivers 25 g protein from 100% Whey Protein Isolate to complement your daily routine and support your protein intake
  • LOW SUGAR AND LOW FAT: Isopure Chocolate Whey Isolate delivers quality protein with minimal sugar and fat, an effortless way to boost your intake without unecessary extras
  • NO ARTIFICIAL FLAVOURS OR SWEETENERS: Enjoy a rich chocolate protein powder with simple ingredients and no artificial flavours, just great-tasting nutrition
  • EASY TO SHAKE, BLEND, OR BAKE: Mix with dairy or plant-based milk, blend into smoothies, or use in baking to make protein brownies, protein pudding, and more; however you take it, Isopure Whey Protein Isolate fits effortlessly into your lifestyle; contains Steviol Glycosides from Stevia, with no artificial sweeteners
Show More
4
Bulk Pure Whey Protein Powder Shake, Unflavoured, 500 g, Packaging May Vary
Bulk Pure Whey Protein Powder Shake, Unflavoured, 500 g, Packaging May Vary
Bulk
15% OffFree Shipping
Why we love it
  • Award-winning for everyday training.
  • Loaded with protein and BCAA.
  • Sourced from European cows.
Main Highlights
  • Delivers 22g or 23g of high-quality protein per serving (depending on flavour), sourced from premium whey protein concentrate to support your daily nutrition and fitness goals.
  • A complete protein source containing all essential amino acids, including 5g of naturally occurring BCAAs per scoop. Ideal for muscle maintenance.
  • Designed to mix easily with water or milk, creating a smooth and enjoyable shake. Low in sugar making it suitable for various nutrition plans.
  • Available in over 20 delicious flavours and multiple pack sizes including 500g, 1kg, 2.5kg and 5kg, making it easy to find the right option to match your taste and usage needs.
  • Manufactured to high quality standards and suitable for vegetarian diets. A reliable protein source for athletes, gym-goers, or anyone looking to boost their protein intake.
Show More
9.6
Superb
9.6
Superb
Bulk
Bulk Pure Whey Protein Powder Shake, Unflavoured, 500 g, Packaging May Vary
15% OffFree Shipping
Why we love it
  • Award-winning for everyday training.
  • Loaded with protein and BCAA.
  • Sourced from European cows.
Main Highlights
  • Delivers 22g or 23g of high-quality protein per serving (depending on flavour), sourced from premium whey protein concentrate to support your daily nutrition and fitness goals.
  • A complete protein source containing all essential amino acids, including 5g of naturally occurring BCAAs per scoop. Ideal for muscle maintenance.
  • Designed to mix easily with water or milk, creating a smooth and enjoyable shake. Low in sugar making it suitable for various nutrition plans.
  • Available in over 20 delicious flavours and multiple pack sizes including 500g, 1kg, 2.5kg and 5kg, making it easy to find the right option to match your taste and usage needs.
  • Manufactured to high quality standards and suitable for vegetarian diets. A reliable protein source for athletes, gym-goers, or anyone looking to boost their protein intake.
Show More
5
Protein Works - Vegan Protein Powder, Unflavoured, 16 Servings, 100% Plant Based & Natural, Premium Multi-Protein Blend, Low Fat Shake, Low Calorie Shake, 500g
Protein Works - Vegan Protein Powder, Unflavoured, 16 Servings, 100% Plant Based & Natural, Premium Multi-Protein Blend, Low Fat Shake, Low Calorie Shake, 500g
Protein Works
20% OffFree Shipping
Why we love it
  • Premium multi-source protein blend.
  • Delicious creamy taste options.
  • Perfect for plant-based diets.
Main Highlights
  • PREMIUM 5-SOURCE PLANT PROTEIN: Our innovative blend combines Soy, Pea, Pumpkin, Brown Rice and Sunflower proteins to deliver 25g of complete protein per shake, making it perfect for vegans, vegetarians and anyone following a plant-based lifestyle.
  • COMPLETE NUTRITION & WELLNESS: Each serving is enhanced with essential Vitamin B12, B6, and Magnesium, providing a full amino acid profile. It's the perfect meal replacement option for active lifestyles.
  • CLEAN & LEAN FORMULA: With only 0.6g fat and 0.2g carbs per serving, our formula contains zero added sugar and is 100% plant based. It contains no artificial flavors or sweeteners, making it perfect for weight management.
  • AWARD-WINNING TASTE: Our smooth and creamy flavors have been perfected over 10 years. It mixes easily with water or plant milk, with no chalky texture or aftertaste. Perfect for shakes, smoothies, and baking.
  • VERSATILE & CONVENIENT: No matter what diet or body goal you're pursuing, Vegan Protein is a great option for anyone who enjoys keeping in shape and living a healthy lifestyle. Made in the UK in our eco-friendly packaging, backed by our 100% satisfaction guarantee.
Show More
9.5
Superb
9.5
Superb
Protein Works
Protein Works - Vegan Protein Powder, Unflavoured, 16 Servings, 100% Plant Based & Natural, Premium Multi-Protein Blend, Low Fat Shake, Low Calorie Shake, 500g
20% OffFree Shipping
Why we love it
  • Premium multi-source protein blend.
  • Delicious creamy taste options.
  • Perfect for plant-based diets.
Main Highlights
  • PREMIUM 5-SOURCE PLANT PROTEIN: Our innovative blend combines Soy, Pea, Pumpkin, Brown Rice and Sunflower proteins to deliver 25g of complete protein per shake, making it perfect for vegans, vegetarians and anyone following a plant-based lifestyle.
  • COMPLETE NUTRITION & WELLNESS: Each serving is enhanced with essential Vitamin B12, B6, and Magnesium, providing a full amino acid profile. It's the perfect meal replacement option for active lifestyles.
  • CLEAN & LEAN FORMULA: With only 0.6g fat and 0.2g carbs per serving, our formula contains zero added sugar and is 100% plant based. It contains no artificial flavors or sweeteners, making it perfect for weight management.
  • AWARD-WINNING TASTE: Our smooth and creamy flavors have been perfected over 10 years. It mixes easily with water or plant milk, with no chalky texture or aftertaste. Perfect for shakes, smoothies, and baking.
  • VERSATILE & CONVENIENT: No matter what diet or body goal you're pursuing, Vegan Protein is a great option for anyone who enjoys keeping in shape and living a healthy lifestyle. Made in the UK in our eco-friendly packaging, backed by our 100% satisfaction guarantee.
Show More