Is there any evidence that fructose intolerance can be triggered by cosmetics? What is the interference between food and cosmetics in FI? For instance, is it possible that a cosmetics "diet" may be all that is necessary to eliminate intolerance and over time fructose in food does not provoke sensitivities? It is claimed that there is a link between FI and sorbitol sensitivity while in other cases FI people are also diagnosed with other chemical sensitivities (histamine, salicylates). Which combinations are common? Is there a direct link (e.g. one develops based on another) or they evolve separately?