Irritable Bowel Syndrome or IBS should be mostly treated internally with the correct nutrition and meditation.
One should completely cut out caffeine, wheat, sugar, tobacco, dairy, beans, most grains and spicy food from their diet. If a student is not willing to do that, Aadil says any yoga practice is a waste of time. He recommends drinking fruit and vegetable juices.
Asana practice should consist of restorative poses which open the spine in both directions (forward and back bends).
But the most important factor in getting better is stress reduction.