Most comments so far seem to focus on the weight loss part, but I don't think that's very interesting. What's more interesting is how he is able to manage ment

Most comments so far seem to focus on the weight loss part, but I don't think that's very interesting. What's more interesting is how he is able to manage mental exhaustion and performance with this regimen. I think everything here applies to other mentally exhaustive work such as software engineering as well. Maybe there's a need for more systematic approach for exercise and diet for software engineering. Not for weight loss, but better sustained performance in the job.