Fasting for 24 hours can reverse the loss of stem cell function in the gut that accompanies aging, according to a study of mice.

Why does fasting improve gut health?

Intestinal stem cells are crucial for tissue repair and regeneration, and their decline as we age means that it becomes harder to recover from gastrointestinal conditions and infections.

The researchers, who were led by a team from Massachusetts Institute of Technology (MIT) in Boston, discovered that fasting for 24 hours boosted regeneration of gut stem cells in younger and older mice. more here: https://www.medicalnewstoday.com/articles/321727.php