Institute of Protein

SUPPLEMENT REVIEWS

We don't accept sponsorships. We buy retail tubs, send them for independent analysis, and publish the true macronutrient profiles alongside taste and mixability scores.

Whey Isolate Score: 8.5/10

Optimum Nutrition Gold Standard 100% Whey

The industry benchmark. Consistent quality, but you're paying a premium for the brand name. Lab tests confirm label accuracy within 2% margin of error.

True Protein: 24g
Cost/25g: £0.85
Whey Concentrate Score: 9.0/10

Myprotein Impact Whey (Unflavoured)

The undisputed value king, provided you buy during a sale. Unflavoured offers the highest yield (82%), but requires effort to make palatable.

True Protein: 21g
Cost/25g: £0.55
Plant Blend Score: 7.2/10

Vega Sport Premium Protein

Excellent amino profile for a vegan powder, but let down by a high sodium content and a premium price tag that is hard to justify against competitors.

True Protein: 30g
Cost/25g: £1.42

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ON Gold Standard Review Myprotein Impact Review Vega Sport Review Whey vs Plant Isolate vs Concentrate Amino Spiking 2023 Heavy Metals in Plants DIAAS vs PDCAAS Intake Calculator Cost Per Gram Tool Leucine Estimator Plant Blend Optimizer Creatine Protocol FFMI Calculator DIAAS Estimator Macro Splitter Hydration Calculator Caffeine Clearance Our Methodology Affiliate Policy