# What is Heavy Metals?

> Heavy metals in protein powders are trace contaminants such as lead, arsenic, cadmium and mercury that come mostly from the soil and water where ingredi...

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

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Heavy metals in protein powders are trace contaminants such as lead, arsenic, cadmium and mercury that come mostly from the soil and water where ingredients are grown.