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Low-plastic diet and urinary levels of plastic-associated phthalates and bisphenols: the randomized controlled PERTH Trial

The everyday use of plastic products exposes us to plastic-associated chemicals (PACs), which have been associated with risks to human health. We present the results of the Plastic Exposure Reduction Transforms Health Trial, with an observational cohort of 211 Australian participants and a 7-day pilot randomized controlled trial in 60 participants. Intervention groups received combinations of plastic-free kitchenware, low-plastic personal-care products and food sourced from more than 100 producers that minimized all plastic touchpoints from paddock to plate, while the control group received no intervention.

Citation:
Harray AJ, Lucas AD, Herrmann SE, et al. Low-plastic diet and urinary levels of plastic-associated phthalates and bisphenols: the randomized controlled PERTH Trial. Nat Med. 2026. 

Abstract:
The everyday use of plastic products exposes us to plastic-associated chemicals (PACs), which have been associated with risks to human health. We present the results of the Plastic Exposure Reduction Transforms Health Trial, with an observational cohort of 211 Australian participants and a 7-day pilot randomized controlled trial in 60 participants. Intervention groups received combinations of plastic-free kitchenware, low-plastic personal-care products and food sourced from more than 100 producers that minimized all plastic touchpoints from paddock to plate, while the control group received no intervention.