Fatty acids are classified as either essential or non-essential, and two essential fatty acids that most people are familiar with are Omega-3s and Omega-6s. A 2020 study found that the saturated fatty acid in butter, C15:0 (Pentadecanoic Acid), is another essential fatty acid with several health benefits, like reduced risk of Type 2 diabetes, heart disease, and non-alcoholic fatty liver disease.