At a time when many people are trying to eat healthy in hopes of warding off diseases, doctors and researchers are discovering certain foods and drinks may pack more of a disease-fighting punch than others. Dr. Oz talks with Dr. Jack Bukowski about the healing properties of green tea, which he says can reduce cardiovascular disease risk factors and more. Plus, Dr. Oz talks with Dr. David Brownstein, a family physician who is finding that people who don't consume enough iodine in their diets may encounter health problems and may be at higher risk for developing certain diseases.