In the cold of winter you need extra fat as you burn calories. So I have heard of people just chewing on fat to survive. During just regular normal days you have to have 20% of your daily diet with fat. In Germany they put a good thick layer of rendered pork fat on bread called schmalz. In the Ukraine it's called Salo. In Poland its called Smalec. Many different countries put in different spices herbs and even bacon, cracklings, pork bits all in the spread. When I say thick layer, I saying thicker then cream cheese on a bagel. Well here is a little bit toned down, some, version.