What food , drinks, medicines, vitamins, supplements etc to avoid with hepatitis c ?

You're fine: There's no dietary magic to hepatitis c. If you are still feeling well, eat what you want. Avoid unregulated supplements, especially "magic chinese herbal remedies" -- these are sometimes mislabeled liver poisons. If you have advanced disease, your physician may restrict protein to control hepatic encephalopathy. Hopefully it won't come to this with today's treatment.