Cold-water oily fish such as sardines are an excellent source of omega-3 fatty acids. Indeed, the silver-scaled fish in a can are dense with nutrients. One serving of the oily pilchards packs as much as 17 grams of protein and 50 percent of your recommended daily calcium intake for just 90 to 150 calories. They are a cost-effective way to get in a whole host of nutrients! Plus, it's fairly simple to make them taste good.

while the main use of sardines is for human consumption, they have many other uses. Sardines are used as fishing bait as well as for fish meal used as animal feed. Sardine oil is used in margarine as well as for the manufacture of paint, varnish and linoleum worldwide.
Sizes (Pieces per kilogram)
7-8
8-10
10-12
12-14
14-16
16-24
20-30