Heavy Metals Interact With Enzymes to Damage Your Kidneys

Arsenic, cadmium, lead, and selenium interact with enzymes in your blood called matrix metalloproteinases (MMPs) to promote chronic kidney disease.

What the Study Found

A 2026 study found that these four metals interact with plasma MMPs in ways that promote kidney damage. MMPs are enzymes that break down tissue. When heavy metals dysregulate them, they start destroying kidney tissue from the inside.

Chronic kidney disease affects over 800 million people worldwide. Heavy metal exposure from water, food, and the environment is a modifiable risk factor.

What You Can Do

Test and filter your water for heavy metals. Eat a varied diet to minimize any single metal source. Don't smoke (cadmium source). Protect your kidneys by reducing chemical burden.

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Source: Heavy Metals and Kidney MMP Study (2026).