There was a significant jump in the prevalence of prediabetes among teens in the U.S. between 1999 and 2018, according to an analysis published in JAMA Pediatrics. The researchers used data from nearly 7,000 kids ages 12–19 in the CDC’s National Health and Nutrition Examination Survey, which included the collection of blood samples. The number of kids who were prediabetic increased from more than 11% to 28% over that time. The researchers noted that the U.S. Preventive Services Task Force released a recommendation on screening for prediabetes and Type 2 diabetes among adults but hasn’t yet made recommendations for kids.