I mentioned in passing to a nurse at my gym that I get calf cramps from running. She told me to get a supplement from Amazon called Calm. It eliminated the cramps, and after an especially rough squat workout I used to get cramps, it also took care of that. Although you need to be very careful with the dosage, it is basically a laxative.

I’m not 100% sure if it was zinc but I supplemented zinc for like a week then had the worst constipation of my entire life. Like, wife had to run to the pharmacy to resolve it while I cried in agony sort of bad. So yeah, be careful with how you supplement!