I use my Los Angeles surroundings as a barometer for changes in the mainstream approach to health, and it holds up quite well. Silicon Valley can claim to be the cradle of technology, but L.A. is definitely the cradle of diet and fitness trends; and the latest is most definitely keto. At the local cafe where every species of Malibu fitness enthusiast gathers to gossip and fuel up, I’m seeing fewer gels and energy bars, and way more butter coffees and discarded packets of the new powdered ketone supplement products.

(This Mark's Daily Apple article was written by Mark Sisson, and is narrated by Tina Leaman)