The American College of Lifestyle Medicine (ACLM), a PCC Executive Member and the medical professional society that has championed food as medicine since its inception in 2004, has announced the availability of the third installment of its “Food as Medicine” course, titled “Calorie Density--A Simple Yet Powerful Concept.” The entire CME- and CE-accredited course is designed around healthful eating as an approach to help prevent, treat and mitigate many chronic diseases.