Advice for future vegetarian who has IBS, a soy allergy and suffers gas pains?

gemgirl asked:


I’ve been contemplating vegetarianism for many years now but with so many intestinal issues I figure why bother? I primarily have IBS with constipation–not that anyone needed to know that. My doctor has suggested vegetarianism to relieve the constipation, but so much of the vegetarian diet consists of such gassy foods. Does anyone have any advice for me?