Amateur wrote:
> I'm not sure if sardines packed in a tin sold at a supermarket are the
> healthiest thing to snack on,

Tinned sardines are one of the most nutritious protein rich foods
there is... the best tasting most nutritious are the tiny brislings in
olive oil; Crown Prince, Polar, and Goya are excellent brands. If you
ever needed to pack a survival kit about all you'd need is water and
tinned sardines.