Adults who are overweight or obese should be tested for diabetes now at the age of 35, according to a new recommendation from the US Preventive Services Task Force. That is five years earlier than the medical expert group appointed by the federal government had previously recommended. The updated advice, published in JAMA magazine, aims to reduce the number of adults with diabetes, which is now about 34 million people (13 percent of the US adult population), according to the Centers for Disease Control and Prevention. Obesity is considered to be one of the strongest risk factors for diabetes. People with diabetes have too much glucose (sugar) in their blood. Additionally, the CDC says about 88 million adults have what is known as prediabetes, when blood sugar levels are higher than normal but not high enough to trigger a diagnosis of diabetes. However, prediabetes often develops into full-fledged diabetes. The task force’s report found that screening for prediabetes and diabetes at a young age, done through a simple blood test, should enable earlier detection, diagnosis, and treatment of a condition that over time causes serious, even life-threatening, health problems can, including heart disease, vision loss, and kidney disease. Lifestyle changes – eating healthier diets, getting more exercise, and losing weight – are seen as important first steps in preventing or treating the condition. Under the Affordable Care Act, insurers must fully cover testing approved by the task force without incurring patient costs.