The Side Effects Of Bubbles: Is Carbonated Water Good For You?

PHILADELPHIA (CBS) --  Seltzer and other kinds of carbonated waters are wildly popular these days.

It's a half billion dollar business, but are they good for you?

Health Reporter Stephanie Stahl says that depends.

Sales of carbonated water in the U.S. have doubled over the past five years.

But not all fizzy water is the same... some can be fattening.

"The best bet is to choose something without any sweeteners at all," Despina Hyde, a registered dietitian advised.

Dietitians say sweeteners are often found in tonic and flavored sparkling waters which can be bad for people who should avoid sugar.

And while bubbly water like seltzer and club soda usually don't contain calories, they can still be bad for your diet.

"While they still don't have calories or sugar, they may be affecting our taste buds, our satiety or hunger later in the day," Hyde said.

Aside from nutritional concerns, experts say carbonated waters can pose a slight risk to people with Irritable Bowel Syndrome because they can cause bloating, and because club soda contains sodium.

But overall most, bubbly water is usually a healthier choice than sugary sodas.

"We're drinking too many calories and so finding these alternatives is great," Hyde explained.

Some people also think carbonated water prevents the body from absorbing calcium, which increases the risk of osteoporosis.

But experts say there is no evidence that carbonated water affects bone density.