More than 18.8 million U.S. adults take omega-3 fatty acids (DHA and/or EPA) and fish oil for their perceived benefits. But is it all hype or omega-3s are really healthy? What are the positive health effects of these essential fats? How can they help pregnant and lactating women? Do they really protect against cancer and Alzheimer’s? When do supplements become necessary? This guide will answer all these questions and many more.