Steak and ice cream
Besides their many other unhealthy qualities, red meat, ice cream, and other high-fat, animal-based foods harbor dioxins. According to Solomon, these chemicals are toxic to the reproductive system, hamper immunity, and are carcinogenic. "Dioxins are unwanted byproducts of combustion and of some industrial processes," she says. "Although regulatory efforts have significantly reduced dioxin pollution in the U.S. over the past few decades, these chemicals are global pollutants – they can travel around the world on air currents." Because they accumulate and persist in fat, eating other animals that have been exposed means concentrating levels in ourselves. The only way to cut back is by drastically cutting back on the intake of fatty meat and high-fat foods like cheese and ice cream.