James A. Duke, PhD, an ethnobotanist retired from the USDA, where he developed a database on the health benefits of various plants. Dr. Duke, who died in 2017, was author of numerous books including The Green Pharmacy Guide to Healing Foods: Proven Natural Remedies to Treat and Prevent More Than 80 Common Health Concerns (Rodale). GreenPharmacy.com
Quenching a summer thirst calls for a tall, cold beverage—and what better way to satisfy that thirst than with cool…
