Why is cranberry juice effective to treat cramps? by Connie b. Dellobuono

Answer by Connie b. Dellobuono:

Cranberries contain magnesium which prevents cramps as it relaxes blood vessels.
Nutrients cranberries
Nutrient
100 grams
Energy 46 kcal
Fiber, total dietary 4.6 g
Sugars, total 4.04 g
Calcium, Ca 8 mg
Magnesium, Mg 6 mg
Phosphorus, P 13 mg
Potassium, K 85 mg
Sodium, Na 2 mg
Vitamin C, total ascorbic acid 13.3 mg
Vitamin A, IU 60 IU
Carotene, beta 36 mcgJ
Lutein + zeaxanthin 91 mcg

Why is cranberry juice effective to treat cramps?