Causes of cracked feet are diabetes; obesity and this damage the foot nerves.
The aging process also interferes with one’s hormones causing hormonal imbalance.
Under-sweating, shortage of essential vitamins and minerals results into inadequate nutrients the skin.
Other causes of cracked feet are cold and hot whether, mal-alignment or poor positioning of the metatarsal bones, poor foot maintenance, i.e not washing the feet and wearing open shoes.