A. Kosher means Fit. The diet fit for the Jewish people developed by the Chief Spiritual Nutritionist (and His staff). Some people observe all aspects and regulations of the diet, others do some, still others none at all. But in terms of Kosher standards, say according to Kosher supervising agencies (ike OU, OK, Star-K, Kaf-K etc) there are basic baseline standards which they all stick to in certifying products. And some people do observe certain extra stringencies that go beyond that baseline Kosher standard.