Doctors recommend eating fish at least twice a week. Food sources rich in omega-3 found in mackerel, herring, sardines, albacore tuna and salmon.
Keep in mind, to maintain the health benefits of fish, fish should be grilled or baked in the oven. If you do not like fish, you can also get omega-3s from foods like ground flaxseed or canola oil.
You can also get omega-3 or fish oil supplement, but it certainly will not earn a place all the essential nutrients in fish such as selenium. If you decide to take a supplement, just remember to watch your diet and eat lean meat or vegetables in place of fish.