I originally got this for my large breed dog who suffers from severe arthritis and I decided to take some too. I feel it has helped both of us along with other supplements that we are taking. I make sure that we both take extra Vitamin E as fish oil tends to deplete this vitamin. Vitamin E also has anti-inflammatory properties and although this fish oil contains some, it's not very much and I believe it acts primarily as a natural preservative. One thing I really like about this product is that Puritan's Pride purifies their fish oil to remove any contamination from mercury which makes me feel better about taking it. I like to purchase this in the double strength form so me and my dog won't have to take as many capsules. The best time to buy this is when Puritan's Pride has their buy two, and get four free for a total of six bottles. They usually have this sale in the spring/summer months. That's when I stock up! Just to be on the safe side, I my store fish oil in the refrigerator. Another way to get a good bargain price is to go through Bizrate to access Puritan's Pride store. That way, I always get free shipping and sometimes an even lower price. The free shipping applies for any size order, even if it's only one item. If you look for an online promo code, you can save even more. I have shopped with this company for many years and have always been satisfied with my purchases and with their customer service department. My orders have always arrived in good condition and in a timely fashion. For a year and four months of treating my dog's arthritis with supplements which included Puritan's Pride fish oil, she was able to keep walking. However, my dog then went completely down and was put on a more powerful prescription medication, Adequan. . My vet instructed me to keep on giving her the fish oil along with the other supplements I've been using. My girl, a ten and one half year old German Shepherd, has been walking for about two months now and she is even beginning to trot a little and I never thought I'd see her on her feet again. However, the injectable medication, Adequan, was the turning point when supplements alone were no longer enough.