Cumin seeds is the dried seed of the herb cuminum cyminum, a member of the parsley family. the cumin plant grows to 30-50cm (12-20in) tall and is harvested by hand it is an annual herbaceous plant, with a slender glabrous branched stem that is 20-30cm (8-12in) tall and has a diameter of 3-5 cm Cumin seeds contains a rich amount of magnesium, and sodium content which is known to promote digestion and give relief from stomach aches when taken with hot water