It is important to avoid foods that are high in toxins and preservatives, as well as those that have been processed. Foods that should be avoided include processed meats, smoked fish, cured meats, canned foods, alcohol, MSG, and artificial sweeteners. Additionally, it is important to limit your intake of red meats, dairy, and sugar, as these can increase your risk of infection. Lastly, some foods may be difficult to digest, so it is best to limit your intake of these. These include fried foods, fatty meats, fried fish, nuts, and certain fruits and vegetables.