Good nutrition makes learning and every other form of spiritual and physical training easier. We do not mean to imply that the kashrut laws are nutritional and hygienic regulations, even though that claim has been made. Besides, we do not look upon the Torah as an ancient book of science, but rather as an ever-new and eternally fresh source of religious truth and practice. It does make sense, though, to argue that, as our creator, God knows what we require to conduct our lives as dedicated and spiritually-oriented Jews. 613 commandments to make the total Jew and kashrut is certainly a substantial component.
Some writers emphasize the disciplinary aspects of the kashrut regulations-and rightfully so.
So much of Torah is disciplinary in nature and self-discipline is vital in one's religious life. Kashrut undoubtedly projects sensitivity towards animals and plants. Therefore, a respect for God's creation, and due humility and thoughtfulness compels one to rely upon lower forms of existence for sustenance. Others have emphasized the by-products of kashrut. Skirting the inner meaning of the law, they focus on its impact on Jewish living and Jewish survival.