A diverse diet consisting of low average insulin index foods is the ticket to a long health span. No need to watch macros as long as the diet meets this criteria.
I saw something similar a couple of months back, can't remember where it was off the top off my head.
It may have been one of Jason Fung's youtube videos - he is an MD and big proponent of intermittent fasting. (As a side not intermittent fasting has been used to reverse type 2 diabetes. Lack of insulin sensitivity would seems to be a big problem).
