He started a new “friendlier named” site called The Fasting Method.
Check the blog of the new site.
I’m on mobile and can’t check now, but even money says that the content has been moved to the new site to help with SEO.
You might want to check out this site https://www.dietdoctor.com/authors/dr-jason-fung-m-d . It has lots of info. I also follow Dr. Fung on FB, Youtube and IG..