Today on What's Good For You, Michael Slater discovers which food causes the most flatulence. Can alcohol in food push you over the limit? Andrew hosts a dinner party and pushes his stomach to the extreme. Is walking better for you than running? Olympic Swimmer Brooke Hansen puts her best foot forward to find out. The dos and don'ts of pill popping - How to take your medicine safely. And does crossing your legs cause varicose veins? Leila finds out if sitting like a lady can leave you with a host of medical problems.