Hey Peter, I'm a huge fan. I have been completing 3 day fasts for the last 4 months but I have noticed everytime I am fasting my joint pain seems to be exacerbated. I should let you know I have a rare bone dysplasia and while I live in chronic pain I would consider myself to be more active than most people (and the pain is manageable without medication). I was wondering if you have heard of anything where fasting increases joint pain?