What are Omega-3 fatty acids primarily found in?

Omega-3 fatty acids are primarily found in fish and flaxseeds, making this the correct choice. Fish, particularly fatty varieties such as salmon, mackerel, sardines, and trout, are abundant sources of two essential types of omega-3s: EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). These fatty acids are known for their numerous health benefits, including reducing inflammation, supporting heart health, and contributing to brain function.

Flaxseeds provide a plant-based source of omega-3 fatty acids, specifically ALA (alpha-linolenic acid), which the body can convert, albeit inefficiently, into EPA and DHA. This makes flaxseeds an important source of omega-3s for those following a vegetarian or vegan diet.

In the context of the other options, nuts and seeds do contain omega-3 fatty acids; however, the primary sources are more closely associated with fish and flaxseeds. Dairy products are not significant sources of omega-3 fatty acids, and red meat is not known for providing them at substantial levels. Thus, the correct answer accurately reflects the primary sources of omega-3 fatty acids in nutrition.