Phthalates Raise Stroke Risk in Women, Not Men
NonToxCo Research
Science & Safety Team · 4/7/2026
Phthalates increase stroke risk, but only in women. A new study shows exactly why.
A Sex-Specific Stroke Risk
A 2026 study in Int J Surg analyzed 8,184 adults from the NHANES survey. After measuring phthalate metabolites in urine and looking at stroke history, the results split clearly by sex.
In women, higher phthalate exposure was positively linked to stroke. In men, there was no significant association. The phthalate doing the most damage was MCNP (mono-carboxynonyl phthalate).
How Phthalates Damage Blood Vessels
The researchers mapped the molecular pathway. MCNP binds to three proteins (KDR, AKT1, and MAPK8) found mainly in endothelial cells, the cells that line your blood vessels. Disrupting these proteins damages the vascular lining, setting the stage for stroke.
Single-cell analysis confirmed these proteins are expressed predominantly in endothelial cells. The damage is specific and targeted.
Where MCNP Comes From
Phthalates like MCNP are in vinyl flooring, food packaging, personal care products, and medical tubing. Women may have higher exposure due to cosmetics and fragranced products that contain phthalates.
What Women Can Do
Check ingredient lists on personal care products for "fragrance" (often contains phthalates). Avoid vinyl and PVC products. Store food in glass. And explore non-toxic home essentials to reduce daily phthalate exposure.
Also see non-toxic kitchen essentials for safer alternatives.Source: Fang et al. (2026). Int J Surg.