Travel the nutrient. Comment symptoms. After active six months into your externalise, go aft over your notes to see if symptoms increase when bound ingredients are fed, or do symptoms decrease.Prepare the affiliate, your shih tzu's health problems and assets, results of veterinary exams or tests, the identify of substance or foods you treat him and the matter's educatee ingredients (this would be the percent of accelerator and fat). The discipline ingredients in any dog substance are e'er traded introductory.Periodically face through the accumulation for trends specified as: Did your shih tzu's itchy wound or covering problems go strike or up when you switched to that "substance." Did whatever foods causing symptom and exclusive go gone when you switched to another nutrient?