I have been playing with ketones. Over the past couple years, I’ve tried a lot of ketone supplements, from KetoCaNa, Pruvit, Kegenix, to a few others. I’ve even accepted and tried a one-off from a person trying to break into the market who I failed to thoroughly vet; that time, I felt like I might die. No joke.

What have I noticed?

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