# What is Lactose?

> Lactose is the natural sugar in milk, and the amount left in a dairy protein powder depends on processing, with whey concentrate containing more than wh...

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

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Lactose is the natural sugar in milk, and the amount left in a dairy protein powder depends on processing, with whey concentrate containing more than whey isolate.