In 2025, Jessica M. Preston and Romain Barrès from the University of Copenhagen studied 43 men aged 20-35 in a crossover trial. Participants spent three weeks on ultra-processed diets (like processed meats and snacks) and three on unprocessed diets (whole foods), with equal calories, followed by a washout period. They measured weight, hormones, and pollutants in blood.

In 2007, Begoña Cerdá and a team studied six volunteers whose fecal samples were incubated with ellagic acid, a soy polyphenol. They found gut bacteria turned it into urolithin, a compound tied to gut inflammation and potential cancer risk in animal studies, with 30-50% more urolithin production in some people, suggesting soy may harm gut health in certain individuals.

In 2023, Carly Fraser from Live Love Fruit reviewed research on harmful chemicals in shampoos, focusing on sodium lauryl sulfate (SLS), parabens, phthalates, formaldehyde, and synthetic fragrances. These are linked to skin irritation, hormone disruption, and environmental damage, with studies showing SLS causes skin sensitivity in 40% of users, and parabens mimic estrogen, raising breast cancer risk by 10-20% in some lab tests.

In 2025, S. Fattahi and a team studied men with prostate cancer in a randomized cohort, followed over time. They analyzed testosterone levels at diagnosis, adjusting for age, cancer stage, and treatments like hormone therapy, to check links with cancer severity and death rates.