Of course you have to forget what an eel eats - he's, when it comes to his gastronomy, related to vultures and hyenas. It's an oily kind of fish that can be prepared in 100 different ways, but I prefer it smoked and eaten with vodka as the fat and the alkohol sort of balance eachother.
I also presume that all the grease is VERY good for our health as it contains loads of Omega-X stuff.
But most of all it is really advanced eel oil, no prissy snake oil