I was a little more careful on precasting , but besides an incident that involved a health potion and a serenity crit I don ' t have any trouble at all . To be honest it ' s the easiest affix to deal with in the game . <| sep |> Please take this with a grain of salt , butI feel certain 168 is perfectly fine , so long as you are getting proper calories adequate protein during your feeding window . Lots of teens skip breakfast and are fine , which is essentially what this is . Fasting as a teen is a problem when it extends past a day , because your body has such a high need for constant replenishment while it ' s growing . You can ' t recycle enough amino acids to get through a multiday fast , like a fully grown adult , because they ' re all being used for growth . You don ' t have a 40 yearold body with lots of broken cells to recover . Everything is pretty brand new in there , and you ' re making more every minute ! This comment is based on my understanding of Dr Fung ' s explanations for why teens shouldn ' t fast .