I stopped taking fish oil about a year and a half ago because of the reasons mentioned in the article as I was questioning the purity of some of the big name labels, plus I never noticed anything except a sense of dullness and fatigue at times, not sure what to make of it but I took it because it was the must have staple, I tend to disagree now....I've been taking Krill oil and like it but the same could be said about questions of purity and meeting label claims.