The BPA Replacement BPS Causes Obesity Without Overeating

Mice exposed to bisphenol S (BPS) got fat and developed pancreatic problems, even on a normal diet. No extra calories needed.

BPS Causes Obesity on Its Own

A 2026 study in Mol Cell Endocrinol gave male mice chronic exposure to BPS, the chemical companies swapped in when BPA got bad press. The mice developed impaired pancreatic function and obesity, independently of high-fat diet intake. They weren't overeating. The chemical itself was making them fat.

BPS disrupted how the pancreas produces insulin and how the body processes energy. It's acting as an obesogen: a chemical that directly promotes fat storage and metabolic dysfunction.

The "BPA-Free" Scam Continues

BPS is what's in most "BPA-free" products. Water bottles, food containers, receipt paper, baby bottles. Companies replaced one endocrine disruptor with another and slapped a reassuring label on it. The study shows BPS is not a safe alternative.

What You Can Do

Don't trust "BPA-free" labels. Avoid plastic food and drink containers entirely. Use glass, stainless steel, or ceramic. Decline paper receipts. Check out non-toxic kitchen alternatives for bisphenol-free food storage and drinkware.

Source: Alves et al. (2026). Mol Cell Endocrinol.