Can bisphenol F from food packaging cause kidney inflammation and scarring?

What's actually in it

Bisphenol F (BPF) is another BPA substitute showing up in "BPA-free" food cans, plastic containers, and water pipes. Like BPS, it was brought in as a safer option but has a chemical structure very close to BPA. You absorb BPF through food, drinks, and skin contact with coated materials.

Your kidneys filter about 50 gallons of blood every day. Any chemical circulating in your blood passes through them repeatedly, making the kidneys especially vulnerable to toxic buildup.

What the research says

A 2026 study in J Hazard Mater tested what BPF does to kidney tissue. The chemical triggered endoplasmic reticulum (ER) stress in macrophages, the immune cells that patrol the kidneys looking for trouble.

When ER stress hits macrophages, they shift into an inflammatory mode called M1 polarization. Instead of calmly cleaning up, they start pumping out inflammatory signals. This recruits more immune cells and creates a cycle of chronic inflammation.

Over time, that inflammation led to kidney fibrosis: scarring of the kidney tissue. Scarred kidneys can't filter blood as well, and the damage doesn't reverse. The study traced the full pathway from BPF exposure through ER stress, macrophage polarization, inflammation, and finally fibrosis.

Avoiding BPF requires the same strategy as avoiding BPA: choose glass, stainless steel, or ceramic for food and drink contact. "BPA-free" labels don't protect you from BPF.