Sometimes I wake up at night with one or both feet cramping and sometimes it is my ankle or leg cramping. Sometimes if I am in bed for 1/2 hour or so before going to sleep my feet will cramp. Someone said stretching your feet and legs will help but it didn't. Usually I will walk around for awhile and usually take Vit C, D and E. Within 5 minutes the cramping sometimes stops. During the time I was healing my liver from jaundice I was taking 45-60 ounces of carrot juice a day and then I had a lot of cramps.