The Challenge of identifying a food intolerance is further compounded by the fact that many people suffer from multiple food intolerances. When they eat a slice of pizza, for example, is the digestive trigger the lactose or casein in the cheese? The gluten in the crust, or phenols in the tomato sauce?
If you think you have multiple food intolerances, there are formulas available that cover the complete spectrum of common food intolerances. Make sure the product you choose covers everything you need.