Not
@bbxtreme, but benefits include better digestion, insulin sensitivity, utilization of carbs, and performance in the gym (a lot of these resulting in staying leaner and being able to push longer).
Many of the benefits come from being able to then LOWER your food on the rest (low) days. I believe anyone serious with their diet and training should follow some sort of cyclical approach with carbs. How extreme you want to go is up to you and how many carbs you can really handle on those high/medium days.
On the extreme end, a user posted on posted a video of Roman Fritz on his rest days and even if offseason he will fast and only has one meal (therefore he will be compensating with these carbs/calories on his training days to consistently gain weight)