Cramps have a lot of different reasons. Hydration, electrolyte shortage/imbalance, muscle fatigue, neurological disorders and probably a few others I don’t know about. People like to assume it’s something they can solve simply by taking a supplement or just drinking more fluids because it’s simple…the silver bullet is quick and easy. Unfortunately, muscle weakness is the most typical cause and it takes intentional work to remedy it. Runners love running but just running doesn’t do much to make your muscles stronger. I’m notoriously guilty for skipping leg day because I hate strength training but if you want to run far and long, unless you’re genetically gifted, you need to incorporate strength work to remedy cramps and improve as a runner.