Keeping a food diary, in which symptoms are also recorded, is very important when searching for an intolerance. Whether histamine intolerance, lactose intolerance or fructose malabsorption. We made such diaries available for download as PDFs back in 2005. Then came the symptom diary app (video in the link), which we unfortunately had to discontinue for cost reasons ... to the … [Read more...] about Food diary / symptom diary