I've used canned herring for making party snacks-- mix with a little cream cheese, scallions, and spices and spread on cucumber slices.
Now if only I could find pickled fillets that aren't swimming in HFCS...
Lots of: urban hiking, cycling, sprinting
Lots of: fresh meat, seafood, eggs, organs, tubers, starchy fruits, low-energy plants, meat fat, dairy fat, oily fruits
Some: cured meat, dairy protein, sweet fruits, rice, peas, tree nuts, oily seeds
Minimal: soy, refined proteins, sugar, liquid carbohydrate, grains, beans, refined oils, peanuts