. Oh, that is funny! I'm gonna borrow that clever expression...
If you eat lots of whole grains, as well as many servings of veg and fruit, not to mention legumes, you'll never suffer constipation.
I agree that eating a junk food vegan diet
is not recommended. While I understand that some vegans are vegans because of ethical reasons only, a healthy diet is optimal to be sure. I've known vegetarians who eat primarily dairy foods and eggs, as well plenty of refined junk food. Even a carniverous diet with plenty of whole grains, fruit and veg is much healthier than a diet comprises of total crap.