Ah LOL, vegans don't eat anything that is derived from an animal source... this include cow/goat milk or anything (cow) dairy like butter, or eggs. I used to have a few vegan friends and it's not that hard these days to eat well as a vegan... they can join in at a BBQ with sausages made from tofu that look like real sausages and have quite a nice smokey flavour too. With all the chemicals,steroids and antibiotics pumped into farmed animals these days, and the pollutants in fish it's no wonder people are choosing the vegan option not just for ethical reasons but for health reasons... even if it's just for a temporary "detox".