About ProteinMath

What is ProteinMath?

ProteinMath is a tool for comparing protein powder products based on price, protein content, and other metrics. The goal is to provide a straightforward way to evaluate the cost-effectiveness of different protein powders using up-to-date data.

Most people (us included) use protein powders to increase their share of protein in their daily macros. For us our single largest part of our supplement spending is protein powder and the price has been on an up trend for the past few years.

The most relevant metric for a protein powder (all else equal) is how much you pay per gram of protein . Yet even websites like Amazon list metrics that are not really relevant such as price / ounce or price / serving while what we are after is really grams of protein. We could not find a comparison tool that made this easy and updating a spreadsheet is too tedious, so we built ProteinMath to do it for us.

How Value is Calculated

The main comparison metric is price per gram of protein . This is calculated as:

This approach allows users to compare products regardless of container size or serving size. Additional metrics, such as total protein content, vegan or diary, are also provided for reference.

Data Sources

Product and pricing data are collected from Amazon. The database is updated regularly to reflect current prices and product details. Only products with complete and verifiable information are included.

The database currently covers most popular brands we are aware of on Amazon, and covers a range of protein powder types. As we build out the database further we plan to include:

• Whey protein (isolate and concentrate)
• Plant-based protein (pea, rice, hemp, etc.)
• Casein protein
• Protein blends
• More vegan and vegetarian options
• Ability to filter out certain ingredients

Notes

• Data is presented as-is, without endorsements or paid placements. We do have affiliate links to Amazon, which means we may earn a small commission if you purchase through them, but this does not affect the product selection or pricing.
• Calculations and comparison methods are transparent and described on the site.
• No user accounts or personal data collection.
• Product availability and prices may change over time.