Originally Posted by veganpower

Prior do november 2013 I trained like an idiot, around 600k a week and this just a year after I started riding. I also under ate a lot during that time in order to loose weight, stupid. Once time, 1 month before my fatigue started, I even water fasted for 3 days and this right after I had come back from a cold. I also did a lot of hill work. The funny thing is that the extreme fatigue hit me after just being vegan for 10 hours, so I have a hard time to think that my diet has anything to do with it. Heck, most people just eat oatmeal in the morning witch means that they have been vegan for around 17 hours once lunch arrives.
My vegan diet includes a lot of fruit and a lot of rice. But of course I try to eat enough greens as well. And no, I am definitely not undereating, I try to stay around 4000 calories a day, more if I train a lot.
From all the people that I have talked to they've all gain energy and felt better on a vegan diet, so being vegan shouldn't change things much.