This guide provides a structured overview of the use of dietary supplements, with a focus on herbal extracts and medicinal plants. Learn about the different forms of herbal supplements, from dried herbs and tinctures to capsules and tablets. The book addresses quality criteria, including the importance of cultivation, the characteristics of a standardized extract, and methods for purity testing. It offers insights into selecting the right products for individual needs by defining personal goals and evaluating scientific evidence. A significant section is dedicated to specific medicinal plants. Explore adaptogenic herbs like Ashwagandha and its effects on the nervous system and physical performance. Understand how to determine an effective turmeric curcumin dosage and enhance its bioavailability with piperine for inflammation regulation. Other plants such as boswellia, gentian, artichoke, and ginger are also discussed. The book details the principles of herbal extract dosage, including how to determine an initial dose and make adjustments over time. You will find information on the timing of intake in relation to meals and the effects of combining different herbs. Safety is a key topic, covering potential side effects, symptoms of overdose, and allergic reactions. A critical chapter examines herb-drug interactions, providing information on interactions with common medications and the influence of herbal supplements on liver metabolism. This allows for an informed and responsible approach to using plant-based dietary supplements.