Best Whey Protein 2026: Top 38 Tested & Compared
What's the best whey protein in 2026? We compared 38 popular whey proteins the fairest way possible: price per gram of protein. No sponsored rankings, no BS.
Quick answer
- Concentrate: Scitec Nutrition 100% Whey Protein Professional, $0.049/g
- Isolate: Ascent 100% Whey Protein Powder, $0.042/g
- Blend: Muscle Milk Protein Powder, $0.023/g
- Best vegan option: BetterBody Foods Organic Plant Based Protein Powder
- Not sure? Quiz →
How we compare whey protein
Most websites rank whey protein by price per bag. But a 2.5kg bag for €30 isn't necessarily cheaper than a 1kg bag for €15. It depends on how much protein is actually in it.
That's why we calculate the price per gram of protein. This is the only fair way to compare whey proteins, regardless of packaging size or brand.
Formula: Price ÷ (Servings × Grams protein per serving) = Price per gram protein
Cheapest Concentrate
Whey concentrate: the most affordable form of whey protein.
Scitec Nutrition 100% Whey Protein Professional
4 flavors
Professional whey blend. European brand with good reputation.
100% Whey Protein Professional
Cheapest Isolate
Whey isolate: higher protein content, less fat and lactose.
Ascent 100% Whey Protein Powder
Whey isolate with 25g protein per 35g serving. The 1814g tub holds 52 servings and lists 1g sugar.
100% Whey Protein Powder
MuscleTech Nitro-Tech
3 flavors
Performance whey with added creatine. Focused on strength and muscle growth.
Nitro-Tech
Nutricost Whey Protein Isolate Powder
Whey isolate with 30g protein per 38g serving, 79% protein by weight. The 2268g pack covers 60 servings.
Whey Protein Isolate Powder
FitRx PoweRx Whey Protein Isolate Vanilla Bean High Protein Powder
Whey isolate with 26g protein per 30.8g serving, 84% protein by weight. The 153g pack covers 5 servings.
Optimum Nutrition Gold Standard 100% Isolate
Ultra-pure whey isolate with 25g protein per serving. Fast-absorbing, low in fat and sugar.
Gold Standard 100% Isolate
Cheapest Blend
Whey blend: mix of concentrate and isolate for the best balance.
Muscle Milk Protein Powder
Whey blend with 32g protein per 70g serving at 270 calories. The 2241g tub holds 32 servings.
Equate Whey Protein Powder
Whey blend with 24g protein per 31g serving at 120 calories. Protein content is 77% of the powder by weight.
Whey Protein Powder
![Goliath Labs Whey Protein Powder [ Bucket] Chocolate Flavor](/products/wm-goliath-labs-whey-protein-powder-bucket-chocolate-flavor.webp)
Goliath Labs Whey Protein Powder [ Bucket] Chocolate Flavor
Chocolate whey blend in a 5443g bucket, 162 servings of 25g protein per 33.5g serving at $26.99 per kg.
Whey Protein Powder [ Bucket] Chocolate Flavor
Optimum Nutrition Gold Standard 100% Whey Protein Powder
Whey blend with 24g protein per 31g serving, 77.42% protein by weight. Four flavours listed for the 682g tub.
Gold Standard 100% Whey Protein Powder
Six Star Pro Nutrition 100% Whey Protein Powder Plus
Whey blend with 30g protein per 47g serving. Protein sits at 64% of the powder, alongside 8g carbs and 180 calories.
100% Whey Protein Powder Plus
Most popular in the UK
The best-known brands in the UK, sorted by price per gram of protein.
Optimum Nutrition Gold Standard 100% Whey Protein Powder
Whey blend with 24g protein per 31g serving, 77.42% protein by weight. Four flavours listed for the 682g tub.
Gold Standard 100% Whey Protein Powder
Optimum Nutrition 100% Whey Gold Standard
5 flavors
Iconic Gold Standard whey. Worldwide bestseller, proven quality.
100% Whey Gold Standard
Optimum Nutrition Gold Standard 100% Isolate
Ultra-pure whey isolate with 25g protein per serving. Fast-absorbing, low in fat and sugar.
Gold Standard 100% Isolate
Optimum Nutrition Platinum Hydrowhey
Hydrolyzed whey isolate for maximum absorption. 30g protein per serving, the fastest absorbing whey.
Platinum Hydrowhey
Optimum Nutrition Clear Whey Isolate
Refreshing clear whey isolate with fruity flavors. Light like lemonade, 20g protein per serving.
Clear Whey Isolate
Best vegan option
Plant-based protein powder, sorted by price per gram of protein.
BetterBody Foods Organic Plant Based Protein Powder
Plant based protein powder with 16g protein per 21g serving at 80 calories. The 360g bag gives 17 servings.
Organic Plant Based Protein Powder
Garden of Life Organic Plant Based Greens Probiotic Protein Shake Drink Powder for Digestive Gut Health
Organic plant based powder with 20g protein per 27.5g serving, 73% protein by weight and 100 calories.
NOW Foods Soy Protein Powder
Soy protein powder with 20g protein per 24g serving at 90 calories. That comes to 83.33% protein by weight.
Purely Inspired Organic Plant Protein Powder
Organic plant protein with 20g protein per 35g serving, listed in vanilla and chocolate. Priced at $32.30 per kg.
Organic Plant Protein Powder
Garden of Life Organic Protein & Greens Protein Powder Protein
Organic plant protein and greens blend, 20g protein per 30.5g serving. The 549g tub holds 18 servings.
Best value for money
Combined score based on price, protein percentage and protein type.
Equate Whey Protein Powder
Whey blend with 24g protein per 31g serving at 120 calories. Protein content is 77% of the powder by weight.
Whey Protein Powder
Goliath Labs Whey Protein Powder [ Bucket] Chocolate Flavor
Chocolate whey blend in a 5443g bucket, 162 servings of 25g protein per 33.5g serving at $26.99 per kg.
Whey Protein Powder [ Bucket] Chocolate Flavor
Muscle Milk Protein Powder
Whey blend with 32g protein per 70g serving at 270 calories. The 2241g tub holds 32 servings.
Ascent 100% Whey Protein Powder
Whey isolate with 25g protein per 35g serving. The 1814g tub holds 52 servings and lists 1g sugar.
100% Whey Protein Powder
Optimum Nutrition Gold Standard 100% Whey Protein Powder
Whey blend with 24g protein per 31g serving, 77.42% protein by weight. Four flavours listed for the 682g tub.
Gold Standard 100% Whey Protein Powder
View all 38 products →
Concentrate(1)
Scitec Nutrition 100% Whey Protein Professional
4 flavors
Professional whey blend. European brand with good reputation.
100% Whey Protein Professional
Isolate(9)
Ascent 100% Whey Protein Powder
Whey isolate with 25g protein per 35g serving. The 1814g tub holds 52 servings and lists 1g sugar.
100% Whey Protein Powder
MuscleTech Nitro-Tech
3 flavors
Performance whey with added creatine. Focused on strength and muscle growth.
Nitro-Tech
Nutricost Whey Protein Isolate Powder
Whey isolate with 30g protein per 38g serving, 79% protein by weight. The 2268g pack covers 60 servings.
Whey Protein Isolate Powder
FitRx PoweRx Whey Protein Isolate Vanilla Bean High Protein Powder
Whey isolate with 26g protein per 30.8g serving, 84% protein by weight. The 153g pack covers 5 servings.
Optimum Nutrition Gold Standard 100% Isolate
Ultra-pure whey isolate with 25g protein per serving. Fast-absorbing, low in fat and sugar.
Gold Standard 100% Isolate
Legion Athletics Whey+ Whey Protein Isolate Powder
Whey isolate at 81% protein by weight, 22g protein per 27.2g serving. The 816g tub holds 30 servings.
Isopure Zero Carb 100% Pure Whey Isolate Protein Powder
Whey isolate with 25g protein per 31g serving, zero carbs and zero sugar. The 434g tub covers 14 servings.
Isopure Zero Carb 100% Whey Protein Isolate Powder
Whey isolate with 25g protein per 31g serving, 81% protein by weight. Zero carbs and 110 calories per serving.
Optimum Nutrition Clear Whey Isolate
Refreshing clear whey isolate with fruity flavors. Light like lemonade, 20g protein per serving.
Clear Whey Isolate
Blend(25)
Muscle Milk Protein Powder
Whey blend with 32g protein per 70g serving at 270 calories. The 2241g tub holds 32 servings.
Equate Whey Protein Powder
Whey blend with 24g protein per 31g serving at 120 calories. Protein content is 77% of the powder by weight.
Whey Protein Powder
Goliath Labs Whey Protein Powder [ Bucket] Chocolate Flavor
Chocolate whey blend in a 5443g bucket, 162 servings of 25g protein per 33.5g serving at $26.99 per kg.
Whey Protein Powder [ Bucket] Chocolate Flavor
Optimum Nutrition Gold Standard 100% Whey Protein Powder
Whey blend with 24g protein per 31g serving, 77.42% protein by weight. Four flavours listed for the 682g tub.
Gold Standard 100% Whey Protein Powder
Six Star Pro Nutrition 100% Whey Protein Powder Plus
Whey blend with 30g protein per 47g serving. Protein sits at 64% of the powder, alongside 8g carbs and 180 calories.
100% Whey Protein Powder Plus
Muscle Milk Genuine Protein Powder
Whey blend with 32g protein per 70g serving. At $26.89 per kg it stays well under the whey average.
Genuine Protein Powder
Dymatize Elite Whey Protein
3 flavors
Premium American whey. High in BCAAs, fast absorption.
Elite Whey Protein
Optimum Nutrition 100% Whey Gold Standard
5 flavors
Iconic Gold Standard whey. Worldwide bestseller, proven quality.
100% Whey Gold Standard
Premier Protein 100% Whey Protein Powder
Whey blend with 30g protein per 41g serving. The 680g tub holds 17 servings and lists four flavours.
100% Whey Protein Powder
Premier Protein Powder Plus Fiber
Whey blend with 25g protein and 8g fiber per 44g serving at 140 calories. The 748g tub covers 17 servings.
Ghost GHOST Whey x Lucky Charms
Limited collab: GHOST Whey with authentic Lucky Charms® flavor. 25g protein per serving. Unique collaboration between GHOST and Lucky Charms.
GHOST Whey x Lucky Charms
Ghost GHOST Whey x Cocoa Puffs
Limited collab: GHOST Whey with authentic Cocoa Puffs® flavor. 25g protein per serving. Unique collaboration between GHOST and Cocoa Puffs.
GHOST Whey x Cocoa Puffs
Ghost GHOST Whey x Nutter Butter
Limited collab: GHOST Whey with authentic Nutter Butter® flavor. 25g protein per serving. Unique collaboration between GHOST and Nutter Butter.
GHOST Whey x Nutter Butter
Jocko Fuel Whey Protein Powder
Whey blend with 22g protein per 34g serving and 0g sugar. At $48.99 per kg it sits under the whey average.
Whey Protein Powder
Cellucor C4 Pro Whey Protein Powder
Whey blend with 25g protein per 34.5g serving, 72% protein by weight. Each serving has 130 calories and 2g carbs.
C4 Pro Whey Protein Powder
Levels Grass Fed Whey Protein Powder
Grass fed whey blend with 24g protein per 32g serving at 130 calories. The 671g tub covers 21 servings.
Grass Fed Whey Protein Powder
Ghost GHOST Whey x Trix
Limited collab: GHOST Whey with authentic Trix® flavor. 25g protein per serving. Unique collaboration between GHOST and Trix.
GHOST Whey x Trix
Ghost GHOST Whey x Cinnabon
Limited collab: GHOST Whey with authentic Cinnabon® flavor. 25g protein per serving. Unique collaboration between GHOST and Cinnabon.
GHOST Whey x Cinnabon
Ghost GHOST Whey
7 flavors
Premium 100% whey protein with 25g protein per serving. Available in unique cereal-inspired flavors. Gluten-free and soy-free.
GHOST Whey
NOW Sports Whey Protein Isolate
Whey isolate with 24g protein per 28g serving at 110 calories, and 86% protein by weight.
Maxler 100% Golden Whey Protein Powder
Whey blend with 24g protein per 33g serving, 73% protein by weight. The 907g tub covers 27 servings.
100% Golden Whey Protein Powder
Garden of Life Grass Fed Whey Protein Powder Vanilla
Grass fed whey blend with 21g protein per 31.5g serving at 120 calories. The 378g tub covers 12 servings.
Grass Fed Whey Protein Powder Vanilla
Body Fortress Super Advanced 100% Premium Whey Protein Powder
Whey blend with 30g protein per 45g serving at 180 calories. The 807g tub covers 18 servings.
Designer Wellness Designer Whey
Whey blend with 20g protein per 31g serving at 110 calories. The 340g tub covers 11 servings.
Hydrolysate(2)
Optimum Nutrition Platinum Hydrowhey
Hydrolyzed whey isolate for maximum absorption. 30g protein per serving, the fastest absorbing whey.
Platinum Hydrowhey
Dymatize ISO100 Hydrolyzed Whey Isolate Protein Powder
Hydrolyzed whey isolate, 25g protein per 30g serving at 83% protein by weight. The 600g tub holds 20 servings.
Clear Whey(1)
RYSE Clear Protein
2 flavors
Clear whey from RYSE, made with 100 percent ultra-filtered whey isolate. 22g of protein and 100 calories per scoop, with zero sugar. Sold in two licensed flavors, Country Time Lemonade and Kool-Aid Tropical Punch.