The thing is, they are considered dangerous and stopped once the competition is over.
1 Why are endurance athletes very skinny when they carbo-load all the time?
2 Why are oriental cultures so thin until they eat an American "Atkins" diet?
These two points are not isolated incidents but universal facts with BILLIONS of people on the Oriental side and almost 100% of the Endurance athletes. Hey, I am a Conservative... when I see reality, I just cant help but think it is real. Silly me. :D