Can drinking soda from aluminum cans raise your bisphenol levels and blood pressure?

What's actually in it

Aluminum cans are lined with an epoxy coating that prevents the metal from corroding. This lining contains bisphenol A (BPA) or its replacements like bisphenol S (BPS). Acidic, carbonated drinks like soda dissolve small amounts of these chemicals from the lining. By the time you drink the soda, it carries a dose of bisphenols along with it.

Glass bottles and PET plastic bottles use different linings or none at all, which changes the chemical exposure profile.

What the research says

A 2025 study in Sci Rep had participants drink the same soda from three different containers: aluminum cans, PET plastic bottles, and glass bottles. Researchers measured urinary bisphenol levels and blood pressure before and after.

People who drank from aluminum cans had the highest spike in urinary bisphenols. Their blood pressure also rose compared to those who drank from glass. The PET bottles fell in between. The effect was measurable within hours of a single drink.

BPA is a known endocrine disruptor that affects blood vessel function. Even brief spikes in BPA levels can tighten blood vessels and raise pressure. For someone drinking several canned beverages a day, these spikes happen over and over. Choosing glass bottles is the simplest way to avoid this exposure.