Can neonatal feeding tubes expose premature babies to phthalates?
Yes. Premature babies fed through plastic tubes are exposed to phthalates and alternative plasticizers that leach from the medical tubing.
What's actually in it
Premature babies in neonatal intensive care units (NICUs) receive breast milk or formula through enteral feeding tubes made from PVC or other flexible plastics. These tubes are softened with phthalate plasticizers like DEHP, or with newer alternatives like DINCH and DEHT. The milk flows slowly through the tube, giving the plasticizers plenty of time to leach into the liquid.
Premature babies are the most vulnerable patients imaginable. Their organs are still forming, their detoxification systems barely function, and their body weight is extremely low.
What the research says
A 2025 study in Environ Sci Technol measured phthalate and alternative plasticizer levels in milk that had passed through neonatal feeding tubes. The tubes released measurable amounts of both old and new plasticizers into the milk before it reached the baby.
The "phthalate-free" tubes still leached their replacement chemicals. DINCH and DEHT were detected in milk from tubes marketed as safer alternatives. The exposure levels were concerning given the extremely low body weight of premature infants, which means each microgram carries a bigger punch.
Parents of premature babies can ask NICU staff about the types of tubes being used and whether phthalate-free options are available. Glass syringes for feeding and shorter tube-to-mouth distances also help reduce exposure.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Neonatal Exposure to Phthalate and Alternative Plasticizers via Enteral Nutrition. | Environ Sci Technol | 2025 |
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