Fats can come from a variety of sources, including animal products such as meat, dairy, and eggs, as well as plant-based sources such as nuts, seeds, avocados, and vegetable oils. Some fatty fish, such as salmon and mackerel, are also good sources of healthy fats like omega-3 fatty acids. Processed and fried foods, as well as baked goods and sweets, can also be high in unhealthy fats and should be consumed in moderation.