and why not take medications , thank god virus c does have a cure , your father deserves to take his chance with treatment , like mentioned above you should see a hepatologist for more tests to know the exact condition of your father
Seriously? Lots of people have hep c. Some will have it all their lives and not even know it while others will die from it. He needs a special doctor (hepatologist or gastroenterologist) to determine what shape his liver is in and whether any treatment possible or likely to succeed. It is a complicated decision.
My advice is to start with the doctor, and then go from there. Your concern is touching, but with all due respect, curing hep c involves a lot more than changing a diet or adding vitamins.
Your dad is lucky to have you looking out for him. Get him to a doctor.
Why cant he take medication? Do you have background information on his medical history?