In the Appendix of Lean And Healthy To 100 it indicates to visit www.adviceformychildren.com to view a list of products that Gordon and his family were using as of the book's release in early 2012. That website now forwards to this page on Gordon's business website and below is that list. Choose whichever products you think are appropriate for you based on what you learned in his book.
Colon cleanse product: Google "Aim International Herbal Fiberblend" and purchase from whichever vendor you choose.
Green barley powder: Google "Aim International Barley Life" and purchase from whichever vendor you choose.
All-in-one liquid supplement: Google "Youngevity Ultimate Classic" and purchase from whichever vendor you choose or you can substitute these here.
75 plant based minerals: click here for lowest price at the proper concentration.
3-6-9 essential fatty acids: click here for the lowest price.