1. From things I have read in the past, olive oil is probably one of the best oils for your body. Just make sure it is organic extra virgin olive oil.
2. I do not have any experience with those two oils, but I don't think they are anywhere near as good as the olive oil.
3. I have tried the orthophosphoric acid once a few years ago with the apple juice. It did not seem to change the taste of the juice,
but I did not see any results like I do when I have done the Dr. Clark flush. I did not sleep well the night before and felt nauseated.
One, it was either a failure or two, it dissolved everything first so there was nothing to pass.
Anyway I will stick with The Clark Flush since for me it does produce good results.