Whey Protein

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    Last Updated: September 4, 2025

    Whey protein is one of the two high-quality proteins derived from cow’s milk (casein being the other). Its high digestibility, quick absorption, and well-researched benefits for muscle gain and cardiometabolic health make it a popular protein supplement among athletes and older adults.

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    Overview

    Dosage information

    Optimal protein intake will vary depending on one’s unique goals, and you can use our protein intake calculator to estimate your optimal daily protein intake, which is based on the evidence presented in our optimal protein intake guide.

    Frequently asked questions

    Update History

    Standard FAQ and database update

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    Research written by

    Brady Holmer

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