The Journey of Darby and Jesse Nubbe
After two years filled with emotional ups and downs in their quest to conceive, Idaho couple Darby and Jesse Nubbe found themselves at a frustrating impasse. “We had already spent $16,000 (£12,000), going through weekly blood tests, invasive ultrasounds, sperm testing, and more. We were doing everything—changing our diets, exercising, even daily cold plunges. But it all led to tears and confusion, as doctors gave us an ‘unexplained infertility’ label,” Darby shared.
It never occurred to them that common household items—like their water bottles or clothing—might be part of the issue. Then, Dr. Shanna Swan came into their lives.
Darby and Jesse joined a three-month study led by Swan, along with five other couples who had also been trying, in some cases for a decade, to conceive despite facing unexplained fertility challenges. The aim was to significantly reduce their daily exposure to harmful chemicals found in plastics to improve their chances of becoming parents. “I believe everyone has a right to have a child if they so choose,” Dr. Swan said. “Chemicals shouldn’t interfere with that fundamental right.”
This project is highlighted in a new documentary titled The Plastic Detox. Plastics are known to contain harmful chemicals derived from petrochemicals, often referred to as “endocrine disrupters,” including phthalates and bisphenols (BPAs). These substances make plastics more useable but are pervasive in our daily lives. As Dr. Swan points out in the film, “We consume them, absorb them through our skin, and breathe them in. They find their way into our bodies and can cause significant disruption.”
Research, including studies from the US National Institutes of Health (NIH), confirms that these disruptions particularly affect male fertility by interfering with hormones crucial for sperm production. Over the past half-century, sperm counts globally have seen a significant decline.
Getting rid of plastics and these harmful chemicals isn’t a simple task. They lurk in unexpected places, from chewing gum to children’s books. The couples were encouraged to avoid all food and drinks in plastic, steering clear of synthetic clothes and personal care items, opting instead for natural products. Dr. Swan’s investigations suggest higher levels of phthalates in women who use fragranced personal care products.
One striking recommendation was to stop handling receipts, as most contain BPA, which could adversely affect hormone levels and fertility. Unlike the UK and EU, where BPA is banned in receipt paper, the US still allows other harmful substances, such as bisphenol S (BPS). “It’s easy to avoid—just say no to receipts,” says Dr. Swan. “I even tell cashiers they should avoid touching them too!”
“I had no clue that the chemicals linked to plastic could impact our fertility,” stated Eric Isaac from Miami, Florida, who, along with his wife Julie, had endured a painful two-year wait to conceive. “Plastic is so prevalent in our lives that it almost feels invisible.”
The detox process wasn’t easy. “Having Shanna audit your home feels like inviting a tornado inside,” Eric remarked. “It’s overwhelming, but necessary—every item in your pantry, bathroom, and cleaning supplies gets evaluated. Giving up flavored sparkling water was particularly hard for me; it’s so convenient and satisfying.”
Darby and Jesse managed to adapt well at home, even donating most of their clothes in favor of non-synthetic options. However, they discovered that social situations often hindered their efforts. “Every dinner with friends felt like a setback,” Darby reflected. “Teflon pans, for instance, were everywhere, and finding alternatives to ensure a plastic-free lifestyle was surprisingly challenging.”
Dr. Swan warns of the potential long-term consequences of these chemicals, stating that the issue could eventually threaten human survival. “This is a serious global challenge,” she expressed. “People need to be aware that these substances complicate reproductive health. It’s essential to take steps for a healthier environment for present and future generations.”
Without revealing whether anyone achieved pregnancy, the study yielded promising results, showing a drop in bisphenol levels and an increase in sperm counts. Of course, it’s important to note that the sample size was small, and many factors affect fertility. Nevertheless, the takeaway from Dr. Swan is clear: “Couples aiming to conceive should minimize their use of plastic products.” She emphasizes the kitchen as a significant area of concern. “Adjusting certain habits can yield better reproductive outcomes. And anyone can make these changes.”
Dr. Swan and the filmmakers assert they’re not opposed to plastic itself but to the harmful additives it often contains. “Our clothing shouldn’t have harmful chemicals, nor should our food,” she stated. Co-director Louie Psihoyos echoed the sentiment, noting that while the US has limited bans on harmful chemicals, the EU has banned over 1,100 substances to protect public health. “Kids everywhere are being exposed to toxic substances, yet plastic production continues to rise rapidly.”
The couples featured in the documentary are sticking to their new lifestyles. “We had to embrace home-cooked meals,” Darby noted. “Eating more whole foods has noticeably improved our energy and mood. Plus, we saved a lot of money—it’s a win-win.”
Eric and Julie have also maintained most aspects of their detox routine, with one small exception: the occasional dine-out experience. “I’ve tried to explain to Shanna that sometimes you just need a burger from a regular restaurant,” Eric joked. “What really kept us committed to these changes was how much better we felt. We’ve experienced improvements in sleep and focus, and it’s difficult to revert back after feeling that difference.”
The Plastic Detox premieres on Netflix on March 16.
