Consider the humble sardine: rich in protein, omega-3s, and (with bones) calcium. They're much lower in the food chain than tuna, so there's less bioaccumulatio

Consider the humble sardine: rich in protein, omega-3s, and (with bones) calcium. They're much lower in the food chain than tuna, so there's less bioaccumulation of mercury, etc. And they taste good. I like the ones in harissa (pepper) paste. http://m.wolframalpha.com/input/?i=1+can+sardines http://m.wolframalpha.com/input/?i=1+can+sardines