I play a lot of sports and get crams pretty often. I sweat a lot and loose a lot of salt. When this happens the cramping starts. To stop this from happening I started taking salt tablets. These are usually found at any drugstore. Also if you drink salt water when you are having a cramp it stops the cram fast with in in 2 min after you drink it. Remember drink a 8oz (regular glass) with plenty of salt. A lot of people cant do it but to get the cramp over with you should. Also if you have high blood pressure this isn't a good ideal.
I have hypothyroidism, but it''s under control with medication. I''m also almost 4 years out with my gastric bypass surgery. I get sudden, horrific cramps in my hands, feet, thighs and calves. Drinking gatorade as a preventative helps some, but not completely. They hit me mostly at night, but also occur to a lesser degree during the day. For instance, when I''m putting on a pair of shoes, my feet will draw and cramp for several minutes, or I may be sitting watching TV midday, and my hands will draw into claws. I take multivitamins 2x a day, calcium supplements, and b12 shots. HELP, somebody!