I watched the video because I'm a liberal:

He only made it through 14 days and in that time he lost 20 lbs. He had medical supervision.

Also he made a pinned comment:

Also for more context, I have Crohn’s disease (basically my gut has tons of inflammation) and I wanted to give it a break from food to see if that would help reduce inflammation because Crohn’s sucks. I learned a lot about how I can use fasting to reduce my inflammation and I’m glad I did this challenge :)