Seems just like minerals and vitamins, which I am going to use anywaysa to get metals out (Selenium and Zinc), probably pretty good and not harmful to the body. I like to do things that are not risky and can cause long term damage, so this might be something I look for.

In Sanskrit, tulsi means literally "the incomparable one" and has been revered since ancient times. Tulsi, the holy basil, is said to have grown at the site of Christ’s crucifixion and is associated with St. Basil’s feast.