Red meat, soda, portion sizes and food quality are all buzz words in nutrition news. But it can be challenging to decipher the components of a "healthy diet," based on voluminous, and often contradictory, nutritional studies. What are the latest evidence-based trends in nutrition research, and how can we best communicate this nutritional knowledge to our patients? Dr. Timothy Harlan, medical director of outpatient clinics, associate chief of general internal medicine, and assistant clinical professor of medicine at Tulane University School of Medicine, surveys a number of "hot topics" in nutrition and puts the latest research into context. Hosted by Dr. Mary Leuchars.