Even if I didn't give a shit about veganism, I would still be plant based simply due to the fact that my bowel movements used to be so fucking painful (effectively pain-free since going vegan, it's only slightly uncomfortable on days where I didn't get enough fiber), and I used to get horrible stomach aches several times a year (completely gone since going vegan over five years ago).

Go vegan for the animals, be surprised at completely unexpected additional benefits lol