Any food which is described to have some additional positive effect on health beyond basic nutrition is referred to as a functional food. It also comprises foods which may have been bred purposely in a particular food variety such as purple or gold potatoes. Many functional foods claim to have physiological benefits. Berries, spinach, almonds, barley, sardines, etc., are some of the common examples of functional foods. Most plant based foods and also some fish and dairy foods which are nutritionally dense and are good for a person's health are termed as superfoods. Superfoods also have various health benefits. They are a rich source of antioxidants, healthy fats and large quantities of fiber. They are believed to be helpful in preventing diabetes and digestive problems. Everyday superfoods include yogurt, olive oil, legumes and tomatoes. This book explores all the important aspects of superfoods in the present day scenario. It presents researches and studies performed by experts across the globe. As this field is emerging at a rapid pace, the contents of this book will help the readers understand the health and nutritional aspects of functional foods and superfoods.