Essential fatty acids are a type of fat that the body needs for healthy functioning, but can’t make itself. They must be obtained from dietary sources, such as fish and plants. Essential fatty acids have been used in traditional medicine for centuries, particularly in herbal medicine and naturopathy. Herbal medicines use plant-based ingredients to treat a range of health problems, while naturopathy uses a holistic approach to healing the body by addressing lifestyle changes, nutrition and other natural therapies. Naturopaths often employ essential fatty acids in their treatments because they believe they can help reduce inflammation, boost immunity and aid digestion.