In this episode of the RD Exam Ready Podcast, Zak reviews the key herbs and botanicals you’ll need to know for the CDR Exam. From garlic, ginseng, and gingko to St. John’s Wort, valerian root, and more — you’ll learn what each claims to do, their risks, and the food–drug interactions that are most testable. The lesson wraps up with practice questions to help you apply the material and sharpen your exam skills.