I am a type 1 diabetic training for a marathon. Crazy , yes. My problem is calf cramps. At 7 to 10 miles my calves cramp so bad I’m unable to run. I’ve been told salt tablets, stretches,pasta,more water,gatorade,more stretching, ice, heat etc. I’ve extended it to 10 miles before the cramps start and can now resume running after walking a mile or so. I’ve tried to find other diabetic marathoners but have contacted none. I think they all die after their first.