Electrolyte drinks for hydration are a hot market, but many contain added sugars — some more than soda. To save money and cut back on sugar, make your own electrolyte drink with a sports dietitian's ...

A classic 20-ounce bottle of lemon-lime Gatorade contains nearly one-eighth teaspoons of salt and 80 milligrams of potassium — electrolytes "to help replace what you sweat out," the product's ads say.

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