A growing number of people are developing intolerances to common foods. They are often advised to eliminate, say, FODMAP-containing foods, lectins, or nightshades that can reduce symptoms.
But none of this addresses the CAUSE of food intolerances. Failing to address the cause can lead to long-term health problems even if you continue to avoid the problem foods. Identify the cause, then correct it–THAT is how you deal with food intolerances. The food intolerances may even reverse over time.