OK, what’s so bad about splicing and dicing DNA to raise crops that resist plant diseases and insects? Not to mention tinkering with genetics to stock future farms with more nutritious vegetables and bigger, stronger plants or animals that end up in our food supply.

According to the American Academy of Environmental Medicine (AAEM), an international association of physicians and other professionals, there is cause for alarm. Mounting data from animal studies show infertility, accelerated aging and changes in structure and function of major organs, including the liver and kidneys. Such findings convinced them it is biologically possible for genetically modified foods “to cause adverse health effects in humans.”

In fact, the executive committee of the AAEM recommended a moratorium on these foods, as well as implementing independent safety tests, and labeling genetically modified foods for the health and safety of consumers.