When your tummy rumbles it could be your small intestine doing some housekeeping for your gut lining. Just like those people who like to wipe down the surfaces and clear up the kitchen after cooking, this is what your intestine does after your food has passed through. The scientific term for this is ‘migrating motor complex’. It is a powerful wave sweeping everything along with it—hence the noise we hear when it happens—which is about one hour after the food has passed throug