Fasting is an integral part of Hinduism spiritual as well as many Yoga practices. Various types of fasts for periods varying from a few hours to several days are prescribed. Now US biologists have found that a 24-hour fast can reverse the age-related loss of intestinal stem cell function that can regenerate new intestinal cells. An earlier scientific study had shown that a 72 hour fast helps in replenishing infection fighting cells in our body.
By Aaron Hostutler – 130715-M-EV637-081, Public Domain, Link
So, lets not go slow on a fast, it has benefits in this world and in the next too.