I'm no expert, but from my vast knowledge gained through the internet[1], it seems that ketosis starts at around the 12 hour mark. But I think it would depend o

I'm no expert, but from my vast knowledge gained through the internet[1], it seems that ketosis starts at around the 12 hour mark. But I think it would depend on how glucose saturated you already are. [1] I like Dr. Berg's videos https://www.youtube.com/watch?v=mSwOreYDPCM https://www.youtube.com/watch?v=mSwOreYDPCM and anything from Peter Attia https://peterattiamd.com/ https://peterattiamd.com/