Can fetal phthalate exposure cause asthma from infancy through the teen years?

What's actually in it

Phthalates are plasticizing chemicals found in soft plastics, vinyl, personal care products, and food packaging. During pregnancy, they cross the placenta and reach the baby. Common sources include fragranced lotions, plastic food containers, vinyl flooring, and shower curtains.

What the research says

A 2026 meta-analysis in Environ Int combined data from multiple child cohorts across Europe to study the link between phthalate exposure in the womb and asthma risk. The pooled results showed that babies with higher prenatal phthalate exposure had a greater chance of developing asthma that lasted from infancy through adolescence.

The study tracked children from birth through their teen years. The link between fetal phthalate exposure and asthma didn't fade as children grew older. Certain phthalate types, especially DEHP metabolites, showed the strongest connection to wheeze and asthma diagnoses.

During pregnancy, choose fragrance-free personal care products and avoid storing food in soft plastic. Switch to glass containers for leftovers and pick unscented cleaning products to keep phthalate levels low.