For the protazoa, you'll want to take care of that imo. I think parasites cleanses get rid of them and if so, I recommend Barefoot's dewormer or Humaworm. This should be your priority and from the reading I've done, the protazoa are a major problem. Sorry, I don't know much in this area.
If beans are giving you gas that means that your digestion is not working properly.
Not sure about your other question, but you're asking why does fasting work and Candida supplements do not? Candida supplements are only treating the symptoms of the problem. Candida is only trying to eliminate excess waste in your GI. If your digestion was good, you would not have Candida.
The best way to fix digestion is a water-only fast. Why does it work? Entire books have been written on it, but basically your digestion shuts down and all that energy you were using before to digest food is now being used to heal your body. Also, your GI tract cannot be healed if it's in constant use.
Thanks, I'll consider it. Tests show I absorb my nutrients etc, I tried digestive enzymens for long time and I always eat organic and beans cause too much gas. How do the fasting diets work and taking candida type supplements not? I have some type of protozoa which isn't that probably worse than the candida?