I was very ill and dying in hospital from what was eventually diagnosed as Crohn's disease. I was released from the hospital when I was allowed to have high doses of probiotics that got my bowels working again.
After searching for a cure over many years, I found an orthomolecular practitioner who did some hair analyses. She found that my bowel was saturated with mercury, likely from my amalgam dental fillings.
I went on a strict mercury detox including lots of lemon water (quarters of 1 lemon in a large bottle of Evian water daily) and a special diet. I also had my amalgam fillings replaced by resin fillings.
I eventually rid my body of the mercury and was totally cured of Crohn's disease. This was 20 years ago. Since then and today, my bowels are perfect.
My 2 cents would be to start the detox with a colon cleanse before anything! To avoid die offs and healing crises...it made a huge difference for me. I used to have very high mercury levels (big fish eater) with candida and I had really scary memory and coordination issues...Zeolite was one option that was recommended by the candida experts group, although they explained that it had to be combined with other herbs in order to support the entire heavy metal removal cycle. After about 2-3 weeks into the process, I started to feel much better. My tests after 4 weeks showed my mercury levels were dropping. It took me about 4 additional months to get them to the normal range, but at least I was feeling great so I didn't mind to keep doing the cleanse