The Arthritis Foundation has found that some food additives, like aspartame and monosodium glutamate, may worsen fibromyalgia symptoms. However, it goes on to say that there is still no research proof that adding or eliminating certain fools will help or worsen fibromyalgia symptoms.
Other studies have suggested that certain food ingredients may trigger inflammation that in turn triggers pain. They include refined sugar and starches, trans fat, and saturated fats. The best thing to do is to adopt and maintain a healthy diet, keep a journal of the food you eat, and use the process of elimination to determine if particular foods are triggering pain.