Aha, Back to Eden. I had that a LONG time ago. Too many moves ago, went by the wayside. I wonder if I could find an actual book now.
Here you go
Back to Eden
https://www.barnesandnoble.com/w/back-to-eden-jethro-kloss/1113128890
new copy for less than $20
This book was written when folks still depended upon herbs for medicine. Before pharmakia declared war on the people. My great-grandmother gathered herbs and sold them to the drug store.