NEW YORK The complications that can result from unhealthy eating among middle-aged and elderly Americans with Type 2 diabetes have consequences for the whole healthcare system, but it’s not just diabetes, which already costs the U.S. healthcare system $116 billion. Unhealthy eating habits contribute to and exacerbate obesity, hypertension and kidney disease, diseases that often have causal relationships to one another. Obesity and diabetes already cost the healthcare system $147 billion and $116 billion, respectively.