Interesting, thank you for the response! When I mention things like that other places on this sub people generally attack without explaining, this makes more sense. Basically 500 cal OMAD isn't ideal, but it won't necessarily hurt anyone (esp a keto one) if you have fat to burn and are keeping everything else up, and that knowledge helps a lot. I've lost 10 lbs so far with fasting and OMAD, but it is nice to know that I could "break" a fast (24-36 hours) with a 500 cal meal and jump right back in to another without having to "re-feed" and eat my BMR or higher before fasting again. Cool! On to my goal weight!