How to Choose Protein Powder: A Label-First Guide

Compare protein powders by declared protein, serving size, and package value rather than marketing claims.

A protein-powder comparison checklist

1. Record protein grams per stated serving and the number of servings.
2. Note the exact protein type shown in the ingredients or facts panel.
3. Compare package price per serving and per 100 g of declared protein.
4. Keep flavor, sweeteners, and other additions separate from the protein calculation.

A larger scoop is not automatically more protein. The declared protein line, rather than package weight alone, is the comparable figure.

Start with information you can verify

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

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 August 18, 2026. Read how Suppscan compares products.