If the healthy food can also be tasty, then is nothing like it. So sasatogun as that which is pleasant and good for you. If it is unpleasant in a long time, you will not hold on to it. Itsthe only exceptional people with exceptional will power can go through power, through something unpleasant. But for most of us, it's good.
Inspired by the 15th chapter of the Ashtavakra Gita, Swami Sarvapriyananda gives a discourse on the nature of the Self.