Whey Concentrate vs Casein: How to Compare Protein Labels

Compare protein type, declared protein, serving size, and package value without treating the names as a complete ranking.

Keep protein type separate from protein amount

Whey concentrate and casein describe different protein ingredients, but the ingredient name alone does not establish value. Record the exact type, protein grams per serving, serving weight, servings per container, and the other declared ingredients. Compare price per 100 g of declared protein only when the label provides the necessary numbers.

What this guide compares

Read the product label before comparing a headline claim. This guide focuses on protein type, protein grams per serving, serving weight, servings per container, and price per 100 g of declared protein. Use the stated numbers and leave any undisclosed value unknown.

How to compare the same unit

For a worked example only, a $40 package with 25 stated servings and 20 g of declared protein per serving contains 500 g of declared protein. Its cost is $1.60 per serving and $8 per 100 g of declared protein. These are calculations, not live retailer prices or nutrition advice.

Keep price and formulation separate

A package price is a useful starting point, but it does not describe the full formula. Compare the ingredient information and package size first, then use one common calculation to make the cost easier to understand.

Use current SuppScan data

SuppScan presents the product data available in its catalog and does not manufacture missing values. Open the Proteins comparison to review current offers and normalized metrics.

Frequently asked questions

What should I compare first?

Start with the declared active amount and serving information. A front-label phrase cannot replace the values in the product facts panel.

Does this page rank products?

No. It explains a comparison method and links to current catalog data rather than claiming a permanent winner.

Sources and review

Method: declared manufacturer label data and current merchant listings where available. Worked prices are explicitly illustrative calculations, never live quotes. Last reviewed September 22, 2026. Read how Suppscan compares products.