Q: I know you're not a doctor, but have you ever heard of the muscles in the outer thighs spasming after about 30 minutes of walking?

A: I don't think I've ever come across that, but I suppose it's conceivable to get cramps just from walking, especially if you're overweight and/or out of shape. If you recently worked out legs or did some cardio or sports, then it's also more likely.

Diet-wise having enough potassium in your diet and drinking plenty of water will help muscle cramps in general. You can get potassium from a variety of foods, including bananas, oranges, lima beans, spinach, and many other veggies, fruits, and legumes.