# What is Milk Protein Isolate (MPI)?

> Milk protein isolate is a dairy protein made by filtering skim milk, keeping both casein and whey in milk's natural ratio of about 80 to 20.

- **URL**: https://www.best-proteinpowder.com/glossary/milk-protein-isolate/
- **Publisher**: [Best Protein Powder](https://www.best-proteinpowder.com/)

---

Milk protein isolate is a dairy protein made by filtering skim milk, keeping both casein and whey in milk's natural ratio of about 80 to 20.