I had been a vegetarian for 15 years, didn't eat fish either. About 2 years ago when I started to struggle psychologically, from nowhere I developed really strong cravings for Salmon - I couldn't understand why I should suddenly be thinking about eating fish - I didn't want to as the reasons for being a veggie still stood (ethicical ones) - but the urges became stronger until I ate salmon and couldn't get enough of it. After reading this article and googling best fish for Omega 3 (salmon was number 1) I wonder whether my body knew something that I didn't?