Dr. Frank Sacks Professor of Cardiovascular Disease Prevention, Department of Nutrition, Harvard School of Public Health 1. What are omega-3 fatty acids, and why should I make sure to include them in my diet? Omega-3 fatty acids (also known as n-3 fatty acids) are polyunsaturated fatty acids that are essential nutrients for health. We need … Continue reading Ask the Expert: Omega-3 Fatty Acid