◉ Intermittent fasting is a diet strategy that involves alternating periods of eating and extended fasting (meaning no food at all or very low calorie consumption).
◉There are 4 popular fasting approaches: periodic fasting, time-restricted feeding, alternate-day fasting and the 5:2 diet.
◉Time-restricted feeding, sometimes called daily intermittent fasting, is perhaps the easiest and most popular fasting method.
◉Daily intermittent fasters restrict eating to certain time periods each day, say 11 in the morning to 7 at night. The fasting period is usually around 12 or more hours that, helpfully, includes time spent sleeping overnight.
◉Periodic fasting will feel most familiar: no food or drinks with calories for 24-hour periods.
◉ Another type of fast, alternate-day fasting requires severe calorie reduction every other day.
◉ Lastly, the 5:2 method was popularized by author Kate Harrison’s book “The 5:2 Diet" and requires fasting on two nonconsecutive days a week.
👨🏻‍⚕️🩺 Dr. Jason Fung is a Canadian nephrologist and functional medicine advocate who promotes a low-carbohydrate high-fat diet and intermittent fasting.Fung disputes the current saturated fat guidelines.
Fung is an author of many low-carbohydrate diet books.His first book, The Complete Guide to Fasting, co-authored by Jimmy Moore was published in fall 2016 and offered insight to all aspects of fasting culture.

The Obesity Code and The Diabetes Code were subsequently published in 2016 and 2018. His book The Obesity Code Cookbook was published in 2019. In 2021, Fung co-authored The Diabetes Code Cookbook with Alison Maclean. In 2020, Fung co-authored with naturopath Nadia Brito Pateguana The PCOS Plan: Prevent and Reverse Polycystic Ovary Syndrome Through Diet and Fasting. His book The Cancer Code, published in 2020 advocates intermittent fasting and a low-carbohydrate diet to reduce cancer risk.