Over 100 of the 224 compounds mentioned within the Huangdi Neijing, an early Chinese medical textual content, are herbs. Herbs have been also generally used within the conventional medication of ancient India, where the principal therapy for diseases was food regimen. De Materia Medica, initially written in Greek by Pedanius Dioscorides (c. 40–90 AD) of Anazarbus, Cilicia, a doctor and botanist, is one instance of herbal writing used over centuries until the 1600s. three Accordingly, there was increasing concern over the potential for dietary supplements, significantly herbal dietary dietary supplements, to work together with prescription medications. The National Center for Complementary and Integrative Health defines dietary dietary supplements as a big selection of merchandise, together with herbs, nutritional vitamins and minerals, and probiotics.