I've been doing the vegan for the past couple of months and have no problems switching to an entirely plant based whole food diet. I love to cook so coming up with a new "menu" has been really challenging and fun.
I've lost 16 pounds in 7 weeks. My blood sugar, cholesterol, and blood pressure have improved significantly.
I average about 80 grams of protein a day. More importantly, I take a Vitamin B12 supplement (5,000 mcg) every day.
And I feel great on the bike!