Can PFAS crossing the placenta affect your baby's blood sugar and growth?
Possibly. A study found that PFAS transferred across the placenta was linked to glucose imbalances and altered growth patterns in newborns.
What's actually in it
PFAS from nonstick cookware, food packaging, stain-resistant fabrics, and contaminated water accumulate in pregnant women's blood. These chemicals cross the placental barrier and reach the baby's bloodstream. The placenta can't filter them out because PFAS bind tightly to blood proteins that pass freely between mother and baby.
A newborn's metabolism is just getting started. Blood sugar regulation in the first days of life sets the stage for metabolic health later on.
What the research says
A 2026 study in Environ Int measured PFAS levels on both sides of the placenta and tracked newborn outcomes. The researchers found that PFAS efficiently crossed from maternal blood to fetal blood.
Babies with higher PFAS exposure showed glucose imbalances at birth. Their blood sugar regulation was off compared to babies with lower exposure. The study also found altered infant growth patterns, with some babies growing faster or slower than expected.
The glucose disruption is concerning because it could program metabolic problems for later in life. Early blood sugar instability is linked to higher rates of obesity and diabetes in childhood and adulthood.
Reducing PFAS exposure before and during pregnancy gives the placenta less to pass through. Use stainless steel or cast iron cookware, filter tap water, and skip stain treatments on furniture and baby gear.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| PFAS Across the Placenta and Its Potential Impact on Glucose Imbalance and Infant Growth. | Environ Int | 2026 |
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