Our expert says:
I must admit that I am also rather baffled that you should be developing cramps if you do all the things you have listed (in other words you probably don't have a mineral deficiency). The only things I can suggest are: a) make quite sure that you warm up probably and do as many stretching exercises as possible to get those calves mobile before and after an event b) try not to dilute your electrolytes (potassium, magnesium, sodium) too much by drinking excessive amounts of water during an event (does the Staminade contain carbohydrates and sodium? I am not acquainted with this product, but for maximum performance your drinks before, during and after exercise should contain carbs and sodium) c) ask your gp to test your blood levels of potassium, magnesium, sodium and iron (the latter may be the problem if you are vegetarian and an iron deficiency could also cause problems).
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