This is an interesting idea actually. Seeing as my diet is snickers bars and fapping is my only physical activity I should give this a shot.
Probably would be beneficiary, granted snickers bars isn't exactly a healthy diet. The thing many people think is that a healthier, more balanced diet is, well, not desirable. That fruits and veggies are not and never can be delicious. It all comes down to the willingness to try new things and the understanding the taste buds can indeed change overtime.
And yes, this has been posted before, but clearly the activity level in said thread is gone.