Are fetal bisphenols and phthalates tied to baby asthma and wheezing?

What's actually in it

Bisphenols and phthalates are chemicals used to make plastics. Bisphenols are often found in hard plastics and the lining of food containers. Phthalates are chemicals that make plastic soft and flexible. They are also used in personal care products and even in disposable baby diapers, according to a 2025 study in Toxics.

These chemicals don't stay put. They leak out of products and get into our bodies. A 2026 study in J Environ Sci Health B confirms that these substances migrate from common plastic items into what we eat and drink. Once inside a pregnant person, these chemicals can cross the placenta and reach the developing baby.

What the research says

The link between these chemicals and respiratory health is backed by peer-reviewed research. A 2026 study in Environ Res found that fetal exposure to bisphenols and phthalates is tied to a higher risk of respiratory conditions, including asthma and wheezing, during infancy.

This is supported by larger investigations into how these exposures affect children as they grow. A 2026 meta-analysis in Environ Int looked at data from infancy to adolescence and confirmed that fetal exposure to phthalates is associated with asthma outcomes. Furthermore, a 2026 study in Environ Pollut examined two birth cohorts and found that these chemicals are linked to childhood allergic phenotypes, which often go hand-in-hand with breathing problems.