Michael Mosley really grew on me as I watched his documentary about fasting yesterday. It was a steer courtesy of a commenter on my recent fasting post.
Here’s what’s covered in pretty decent depth:
- CRONies (caloric restriction with optimal nutrition)
- Fasting periodically for four days
- Alternate day fasting
- Intermittent fasting for 2 days per week (5/2)
Also very important in this documentary is that while plain metabolic markers are definitely part of what’s being looked at, the biggie is IGF-1, the thing essential for making us grow from infants to adults, but then, high levels can be associated with various cancer and other bad stuff (yin yang).
The punchline is that Dr. Mosley achieved all needed benefits in terms of metabolic markers and a profound lowering of IGF-1 using the 5/2 method. That’s five days of eating whatever the hell you want, as much as you want, and 2 days of only 600 calories.
Now, I’m a bit of a fasting purist and it annoys me when there’s calories taken in, and 600 seems like a lot for a fast. OTOH, five solid weeks at it and his numbers were his numbers, and he lost 14 pounds.