Mu husband has recurrent loose stools problem. Ultrasound is normal. He normally goes 3 times a day. And he gets recurrent loose stools every now and then containing all undigested food. He has taken oflox antibiotic course. Diet is healthy no oil no spice and with fruits and veggies. Curd everyday. No outside food. He was advised to avoid wheat product and milk products by gastroenterologist. But still no effect. He is losing weight too. Please advise.