A kadha is made with dry ingredients that cannot be juiced, hence these ingredients are added to water and boiled to extract the nutrients within. According to a 2018 study published in the Journal of Traditional and Complementary Medicine, herbal teas like the kadha are a rich source of natural bioactive compounds or antioxidants like carotenoids, phenolic acids, flavonoids, alkaloids, saponins, terpenoids, polyacetylenes, coumarins and many others.