Calaguala (Polypodium leucotomos) is a fern that grows wild in the rainforest and has been used as a folk remedy in Central America for centuries. A tea made from the plant's rhizomes (root) may help to prevent sunburn, relieve psoriasis, and treat the skin condition vitiligo. The ancient Mayans used Calaguala as part of their daily diet in the form of tea as a blood purifier. They attributed healing properties to the drink and up until today the drink is still popular in South American tradition. Calaguala is a rich source of bioactive organic compounds. It is a source of alkaloids and lipids but its health benefits are usually attributed to the content of flavonoids, lipids and fatty acids.
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