Recent studies have deepened the understanding of the role of functional fatty acids in preventing chronic diseases. Evidence now supports that omega‑3 fatty acids, found in fish and certain plant oils, help reduce inflammation by modulating immune responses and reducing oxidative stress. These fatty acids have been shown to improve cardiovascular markers, such as lowering blood pressure and improving lipid profiles. Moreover, emerging research on conjugated linoleic acids indicates potential benefits in body composition and insulin sensitivity. The combined impact of these functional fats is driving a reconsideration of dietary guidelines, with a focus on increasing the intake of high‑quality fats to prevent conditions like heart disease and diabetes, marking a significant advancement in nutritional prevention strategies.