I've had an ileostomy since 1990, in the nature of low residue. There are two ways to look at a new food since surgery. First is, of course, water and more water while introducing the new foods one at a time, and to see how low residue you can chew something, don't swallow, take it out of your mouth and put it on a screen strainer, letting water drip on it. After about 5 minutes, you can see what is left - residue. I tried this with certain things like olives and stuff I know are not low residue. These items I enjoy I eat, but in little amounts. Certain lettuce never breaks down, spinach is high residue. I go as far as having a few beers and eating things like corn on the cob. So after 28 years, I've been to the hospital 3 times for blockage. One time, I ate a fruit basket with fresh apples, an orange, and a banana - shame on me. The second time was peanuts on a long drive with no drink - shame on me. Once, I don't remember what I ate, but they can often unblock with a laxative or pump the stomach. So my recap is that all 3 blocks were not wise and were caused by me not drinking enough water while eating. The things I know may cause a blockage, I eat a little, drink, eat something else, eat some more, and repeat. Those nuts sound like eating a little at a time may work out. I always have a bottle of fuzzy sodium citrate laxative or real grape juice cold, and really cold water to move things along. If you think you are blocked, do jumping jacks, go for a walk or run, and drink fluids.