KOSHER from the Hebrew 'fit, proper'; that complies with Jewish religious regulation regarding the foods eaten: Separation of dairy and meat; animals slaughtered without suffering; prohibition of pig and other consumption. You can only eat salmon, grouper or sardine. Fish with fins and scales. These rules were set more than 5000 years ago to optimize the health of the population. For example, the ban on eating pork was because there was no cure against trichinosis. Jewish law prohibits the consumption of insects, reptiles and worms. That is why vegetables should be thoroughly washed. Something natural today was not considered in the distant past. 2 . ( establishment ) kosher : which sells this type of food.