Bratwursts are relatively richer in Vitamins. The amount of Vitamins B1 is five times higher in them than in hot dogs. Bratwursts also contain less sodium and saturated fats. On the other hand, hot dogs contain more minerals and folate, less sugar and cholesterol.
Sausage is a preparation of ground meat that can be found in dried or fresh varieties and sold either in casing as links or in bulk. Bratwurst is a specific type of fresh link sausage made with pork or veal.