So I was familiar with the signs of appendicitis when I became convinced a few years later that I too needed emergency surgery after devouring two Fiber One cereal bars.
The first ingredient in many Fiber One bars is chicory root fiber. Chicory root contains inulin, a carbohydrate that occurs naturally in certain foods and is added to processed foods, such as granola bars, breads, cereals, and yogurts. Many food products that scream “fiber” on their packaging (e.g. Double Fiber Bread, Fiber One Bars) contain inulin or a similar fiber.
Inulin is a prebiotic fiber, and prebiotic fibers nourish the “good” bacteria in the large intestine through bacterial fermentation. Too much inulin or any fermentable fiber can result in uncomfortable gas, bloating, abdominal cramping, diarrhea, constipation, nausea and “growling” or “rumbling” sounds.
If you suffer regularly from any of the above symptoms then I highly encourage you to review the ingredients in your packaged foods for the following: inulin, chicory root, FOS, and oligosaccharides.
Better yet, avoid highly processed foods and eat real food.