There are references to Coriander and coriander seeds in Egyptian medical texts written on papyrus dated around 1550 BC. Coriander is a cooling agent according to Ayurveda. It helps cool the body. Coriander water (water in which coriander is soaked overnight) was used by our ancestors and is now a health fad again. It is supposed to aid in weight loss to helping fight acne and pigmentation.