Just started taking Krill oil which you can find in any health store or vitamin shop. I bough mine from Boots London and you can probably find it in Holland and Barrett as well. Krill oil and fish oil are very similar in composition,they provide us with omega 3 just as we get it from flax oil or other omega-3 fatty acids.The only difference is that Krill is 80X stronger than fish oil and doesn’t allow you to have an after taste, so there’s no fishy burps …lol. Also, krill oil contains higher amounts of astaxanthin than fish oil. Astaxanthin is a great antioxidant for the body.