What is Kosher food? What makes food Kosher?

Question

(sorry if spelled Kosher incorrectly.)

do jewish people eat only Kosher food? What is it?

Answer 1

Delhi did well

but here is the guide..

http://www.jewfaq.org/kashrut.htm

and  this added to help

http://www.kosherhouston.org/symbols.htm

Answer 2

Kosher food is food that meets Jewish dietary laws, or kashrut, which comes from the Hebrew word for "fit" or "proper." Any food can be called kosher food if it adheres to Jewish law, or halacha. Conversely, foods typically labeled as "Jewish" aren't necessarily kosher. Jewish foods are generally those dishes that are traditionally Jewish. Kreplach, cholent, kugel, latke, and kishka are all traditionally Jewish foods, but if they are not prepared in accordance with kashrut, they will not be kosher food

Lobster lovers might be dismayed to find that for seafood or fish to be kosher, it must have fins and easily removable scales. Shellfish generally, and lobsters, shrimp, and clams, specifically are not kosher. Fish, on the other hand, such as tuna, carp, and herring, are kosher, but only if they are prepared by a kosher fish monger with kosher cutting implements and machines. There's more. In most cases, scales must be present on the fish in order to be purchased by the consumer. Fish and meat cannot be served together. Milk and meat cannot be served together. Rabbinic law includes poultry in this prohibition, however fish is excluded. This gives rise to the popular, and kosher, bagel, lox, and cream cheese combination. Processed food must be prepared in the presence of a rabbi. Poultry and meat must be slaughtered under strict guidelines called "shechita." This means the animals are slaughtered without pain. Only those who are trained and qualified are allowed to slaughter kosher animals. Once the animal is no longer alive, another team of experts will examine the animal to be sure the animal is without illness, abnormalities or anything else that can be considered unsanitary. The lungs in particular must be pure. In addition, all blood, nerves, and most fat must be removed. Kosher kitchens must maintain separate sets of utensils, pots, pans, dishes, and anything else that comes in contact with food. In addition, dishes and utensils in a kosher kitchen can't be washed together. If a kitchen has two sinks, it is an ideal setup for a kosher family. If not, separate wash buckets are often used. Dishes and utensils must be dried using separate racks or dishtowels as well.