Treat psoriasis: Kim Kardashian avoids acidic vegetables like tomatoes. In Germany alone, an estimated two million people suffer from the skin disease.

An anti-inflammatory diet has been proven to help counteract these flare-ups. Since sugar can promote inflammation, those affected should choose low-sugar varieties of fruit and vegetables. For more severe forms, systemic medications such as methotrexate or biologics are used to control symptoms and reduce inflammation. If you want to try out which foods you don't tolerate well, your doctor can give you more information about the so-called elimination diet.