Omega-3s are the most widely purchased nutritional supplement in the United States. But they took a dip in popularity in 2015 after several clinical trials failed to show a positive effect. A lower ratio of omega-6 to omega-3 fatty acids is desirable to reduce the risk of many chronic diseases of high prevalence in Western societies, but the typical American diet contains 14- to 25-times more omega-6s than omega-3s.
There is broad consensus that the optimal source of omega-3 fatty acids is fish and seafood, but not everyone likes the taste of fish. So fortified dairy products remain an important alternative source of essential fatty acids for babies and for consumers who prefer not to pop a pill or eat fatty fish.