Q: I am working out in the heat and trying to keep hydrated with more than just water. Gatorade is too expensive and too sweet, and I’m sure there are easier ways to quickly replace what my body’s losing in high heat. Are juices good?

A: Today, we have a plethora of choices when it comes to fluid-replacement drinks. It seems that every day I see an advertisement for a “new” drink that helps this and stops that.