An old study from 2013 about caloric restriction, emphasizing how it extends life span and prevents as well as helps to reverse several age-related diseases in a variety of species. This was very intriguing to me, especially given the fact that humans have been bombarded with the idea that we need to eat at least three meals a day, plus snacks in order to be healthy and fit. Fast forward to today, and fasting has become quite popular, and this is thanks to a wealth of research that’s emerged showing that not only caloric restriction, but fasting, has a number of health benefits.
Fasting has been shown to extend life, protect against neurodegenerative and age-related diseases, ‘starve’ certain cancer cells, reverse and manage type two diabetes, trigger new stem cell generation and help people lose weight. If done for a long enough time, although we don’t quite know exactly how long, fasting also actives autophagy, the body’s self-cleaning system, which allows the cell to get rid of old cell machinery, breaking them down into smaller parts to be reused by the cell. Fasting stimulates the production of ketone bodies in the blood, which have also been shown to have a number of benefits and is one of many mechanisms by which fasting benefits the body.
Resource of fasting research is Krista Varady, PhD, a Professor of Nutrition at the University of Illinois, Chicago. Her research focuses on the efficacy of intermittent fasting for weight loss, weight maintenance, and cardio-protection in obese adults. Her work is funded by the NIH, American Heart Association, International Life Sciences Institute, and the University of Illinois. She has published over 70 publications on this topic, and is also the author of a book for the general public, entitled the “Every Other Day Diet”.