John, I am very proud of you, although I do not agree with a 30 day fast as I have read a lot about the negative effects a lengthy fast can have. All these herbs that I have mentioned are safe for human consumption and quite beneficial to your health. My mom at age 78 makes a tonic in the morning consisting of a pinch of dried ginger, 2ml turmeric, and Luke warm water. It helps with arthritis. She starts her day with apple cider vinegar and Luke warm water in the early morning.