Stool Issue
I do on occasion. I have always assumed it is malapsorbed fat as well. When i just looked it up, it can be caused by a variety of things like changes in diet (seems to make sense for after RNY), excess amounts of carbs, expelled mucus normally produced in the large intestine, or infection. Per Mayo Clinic, a small amount is not a concern. I'd keep an eye on it and discuss with your doctor if it continues.