The documentary 'Plastic Detox' on Netflix follows six couples facing fertility challenges without any clear medical reasons for their difficulties. In their quest to improve their chances of conception, the couples embark on a journey guided by 89-year-old epidemiologist Shanna Swan, who has dedicated much of her career to researching the impact of environmental chemicals on reproductive health. These couples take significant steps to eliminate plastic from their daily routines, discarding items such as air fresheners and plastic cutting boards in favor of alternatives like bamboo toothbrushes and cardboard-packaged deodorants.

Shanna Swan, a professor of environmental medicine at Mount Sinai School of Medicine, plays a vital role in the docuseries as she helps the couples identify sources of plastic exposure in their lives and provides guidance on healthier alternatives. Over the span of three months, the couples undergo an intervention, during which Swan closely monitors their progress by measuring the concentration of harmful substances in their urine and tracking sperm count levels to see if their efforts yield any positive results regarding their fertility.

The documentary raises important questions about the potential link between environmental factors, particularly plastics, and fertility challenges. While it offers a compelling narrative of hope and proactive change, it also reflects a growing concern in society about the long-term impacts of chemical exposure on reproductive health. The journey of the couples in 'Plastic Detox' not only highlights individual health choices but also invites broader discussions about environmental policies and consumer product safety.