He is a Natural Path and Veterinarian . https://youngevity.com/index.cfm/more/people/joel-d-wallach-bs-dvm-nd/
Readers, this Wallach person appears to be a rather pernicious quack: http://skepdic.com/wallach.html http://nutra-smart.net/al.htm http://www.quackwatch.com/01QuackeryRelatedTopics/DSH/colloidalminerals.html of the sort that are two-a-penny in the USA and experts at lightening the wallets of the gullible.