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Medicinal beverages are herbal drinks that are consumed by people in numerous countries including China, India, Brazil, Greece, Turkey, and others. These herbal drinks possess many beneficial properties for human health, such as antioxidant, antimicrobial, anti-inflammatory, anticancer, antiaging, anti-fertility, antitumor properties, and anti-diabetic effects. Flavonoids, phenols, carotenoids, sterols, glucosinolates, alkaloids, polyacetylenes, coumarins, saponins, and terpenoids are the main constituents which offer benefits to human health. In this context, this review aimed to highlight medicinal beverages’ origin, physico-chemical properties, and bio-functionality, focusing mainly on olive leaf extracts and their bioactive components that have not been extensively studied.
Panou et al. (Tue,) studied this question.