Many people after chronic viral infections herpes if you eat fatty foods. When this happens, less bile is secreted from the gallbladder and the bile acids' ability to kill viruses is reduced, which is why they can multiply so much, so it's worth treating the problem by replacing bile acids.

Short interview with Dr Erika Balaicza (doctor, internist, naturopath)
Source: Fix TV - Sinus programme 2015.06.08.