Polyunsaturated fatty acids (PUFAs) are a type of fat found in various foods that are essential for human health. They contain multiple double bonds in their chemical structure, which distinguishes them from saturated and monounsaturated fats. PUFAs are important for brain function, cell growth, and overall well-being. There are two main types of PUFAs: omega-3 and omega-6 fatty acids. Omega-3 fatty acids are commonly found in fish, flaxseeds, and walnuts, while omega-6 fatty acids are prevalent in vegetable oils and nuts. Consuming a balanced ratio of these fatty acids is crucial for maintaining good health and reducing the risk of chronic diseases.