Best Whey Protein 2026: Top 13 Tested & Compared
What's the best whey protein in 2026? We compared 13 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 — $0.070/g
- Isolate: Optimum Nutrition Gold Standard 100% Isolate — $0.036/g
- Blend: Optimum Nutrition 100% Whey Gold Standard — $0.041/g
- Best vegan option: Huel Complete Protein
- 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
Professional whey blend. European brand with good reputation.
100% Whey Protein Professional
Cheapest Isolate
Whey isolate: higher protein content, less fat and lactose.
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
MuscleTech Nitro-Tech
Performance whey with added creatine. Focused on strength and muscle growth.
Optimum Nutrition Clear Whey Isolate
Refreshing clear whey isolate with fruity flavors. Light like lemonade, 20g protein per serving.
Cheapest Blend
Whey blend: mix of concentrate and isolate for the best balance.
Optimum Nutrition 100% Whey Gold Standard
Iconic Gold Standard whey. Worldwide bestseller, proven quality.
100% Whey Gold Standard
Dymatize Elite Whey Protein
Premium American whey. High in BCAAs, fast absorption.
Ghost GHOST Whey x Trix
Limited collab: GHOST Whey with authentic Trix® flavor. 25g protein per serving. Unique collaboration between GHOST and Trix.
Ghost GHOST Whey
Premium 100% whey protein with 25g protein per serving. Available in unique cereal-inspired flavors. Gluten-free and soy-free.
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
Most popular in the UK
The best-known brands in the UK, sorted by price per gram of protein.
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 100% Whey Gold Standard
Iconic Gold Standard whey. Worldwide bestseller, proven quality.
100% Whey Gold Standard
Optimum Nutrition Platinum Hydrowhey
Hydrolyzed whey isolate for maximum absorption. 30g protein per serving, the fastest absorbing whey.
Optimum Nutrition Clear Whey Isolate
Refreshing clear whey isolate with fruity flavors. Light like lemonade, 20g protein per serving.
Best vegan option
Plant-based protein powder, sorted by price per gram of protein.
Huel Complete Protein
The world's first nutritionally complete vegan protein powder. Hemp, fava bean, and pea protein blend with a complete amino acid profile. 20g protein per serving, 105 kcal. Gluten-free and plant-based.
Best value for money
Combined score based on price, protein percentage and protein type.
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 100% Whey Gold Standard
Iconic Gold Standard whey. Worldwide bestseller, proven quality.
100% Whey Gold Standard
Dymatize Elite Whey Protein
Premium American whey. High in BCAAs, fast absorption.
MuscleTech Nitro-Tech
Performance whey with added creatine. Focused on strength and muscle growth.
Optimum Nutrition Platinum Hydrowhey
Hydrolyzed whey isolate for maximum absorption. 30g protein per serving, the fastest absorbing whey.
View all 13 products →
Concentrate(1)
Scitec Nutrition 100% Whey Protein Professional
Professional whey blend. European brand with good reputation.
100% Whey Protein Professional
Isolate(3)
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
MuscleTech Nitro-Tech
Performance whey with added creatine. Focused on strength and muscle growth.
Optimum Nutrition Clear Whey Isolate
Refreshing clear whey isolate with fruity flavors. Light like lemonade, 20g protein per serving.
Blend(8)
Optimum Nutrition 100% Whey Gold Standard
Iconic Gold Standard whey. Worldwide bestseller, proven quality.
100% Whey Gold Standard
Dymatize Elite Whey Protein
Premium American whey. High in BCAAs, fast absorption.
Ghost GHOST Whey x Trix
Limited collab: GHOST Whey with authentic Trix® flavor. 25g protein per serving. Unique collaboration between GHOST and Trix.
Ghost GHOST Whey
Premium 100% whey protein with 25g protein per serving. Available in unique cereal-inspired flavors. Gluten-free and soy-free.
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
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
Hydrolysate(1)
Optimum Nutrition Platinum Hydrowhey
Hydrolyzed whey isolate for maximum absorption. 30g protein per serving, the fastest absorbing whey.