There has been a lot of controversy surrounding intermittent fasting lately. It is a hot topic in the fitness community, and a lot of lifetime proponents of 6 small meals a day are switching over. Both have their benefits, and while 16/8 or 20/4 may be great for the average joe, you may run into problems using this protocol if you are an athlete. Most MMA athletes are training 2-3 times a day so you might as well throw IF out the window. For these individuals it is necessary to feed the furnace frequently throughout the day.