Magnesium.
D000818:Animals; D002118:Calcium / Q000378:metabolism; D004032:Diet; D005504:Food Analysis; D006728:Hormones / Q000502:physiology; D006801:Humans; D007408:Intestinal Absorption; D008274:Magnesium / Q000378:metabolism / Q000502:physiology*; D008275:Magnesium Deficiency / Q000378:metabolism; D009751:Nutritional Requirements; D011188:Potassium / Q000378:metabolism; D014815:Vitamins / Q000502:physiology
D006728:Hormones; D014815:Vitamins; D008274:Magnesium; D011188:Potassium; D002118:Calcium