Drinking too much cola can increase the risk of a muscle problem called hypokalemia, experts warn.

In people with hypokalemia, a drop in blood potassium levels results in problems with vital muscle functions. Symptoms can range from mild weakness to serious paralysis, say Greek researchers who conducted a review of people who drank between two to nine liters of cola a day.
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In its March issue, Health magazine tells about the top ten healthiest fast food chains in the United States.

It examines why they’re healthy, what the healthiest meals are to eat there, and what to avoid. The chains were scored and ranked on such factors as the use of healthy fats and preparations, healthy sodium counts in entrees, availability of nutrition information, and the use of organic produce.

One big surprise: A traditional fast-food chain, McDonald’s, cracked the top 10.
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Not just the usual suspects like sugar that may be harmful. Some surprising — even healthy — foods can cause cavities, while others can help protect you from decay, gum disease, and even bad breath. Here’s how to tailor your diet for optimal dental health:

Eat carbs at mealtimes
A handful of potato chips or even a wholewheat roll can be just as damaging to your teeth and gums as a chocolate chip cookie. All carbohydrates break down into simple sugars, which are ultimately converted by bacteria in the mouth into plaque, a sticky residue that is the primary cause of gum disease and cavities. Carb-based foods such as breads and crackers tend to have “a chewy, adhesive texture,” making it easier for them to get caught between teeth or under the gum line, where bacteria can then accumulate, says Christine Gerbstadt, MD, RD, a spokesperson for the American Dietetic Association. Have carbs at mealtimes rather than as a snack: When you eat a larger amount of food, you produce more saliva, which helps wash food particles away.
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