Yom Kippur, the day of repentance and forgiveness, the day when Jews cleanse themselves of their sins, is an excellent opportunity to atone for our sins against our bodies as well. To put it another way: It’s a good idea to eat healthily before and after the fast and fix bad nutritional habits. After all, if we’re already fasting on Yom Kippur, then at least our bodies, as well as our...