Since I last posted a friend with diverticulitis told me that eating peaches when he feels an episode coming on often calms it away. I don't know if they're fresh or canned.
I'm still avoiding nutrasweet and I have another food to avoid--shredded lettuce. I think the problem is with whatever it is treated with to keep it from wilting or turning brown when it leaves the plant and travels to Subway and Burger King and the other places that can't be bothered to shred their own lettuce. I avoid lettuce like the plague now and though I miss it on sandwiches, I'm much happier not having to hover near the bathroom all night long after eating a sandwich for dinner.