Here’s a run down of the kosher definition for each food group:
Meat and Poultry. Not all animal or bird meat is considered kosher.
Dairy. It’s required that dairy products come from kosher animals.
Eggs.
Fish.
Separation of Meat and Dairy.
Meat.
Slaughter of Animals.
Dairy.
Which foods are kosher?
After dairy consumption, no interval is required before meat may be eaten. The eggs of kosher birds are permitted as long as they do not contain blood. Therefore, eggs must be individually examined. Only fish with fins and scales may be eaten, for instance, tuna, salmon, and herring.