Celebrity endorsements for soda have been around for years. Remember Mean Joe Green's 1979 ad for the softer side of Coke? Ever see Norman Rockwell's 1928 painting of a young lad with a fishing pole declaring he and Coke were friends for life?

More recently, Taylor Swift (Diet Coke), Beyonce (Pepsi), and Steve Harvey (Coke, again) have peddled soda.

They all look so fit and trim! Must mean it's OK to indulge, right? Think again.

A recent study by researchers in Japan, Finland, the U.K., and the U.S. found that even if you're a healthy weight, drinking sugary soda, as well as diet soda and fruit drinks, raises your risk for developing Type 2 diabetes.

In North America, drinking one 12-ounce sugar-laden soda (or adding one to your usual consumption) increases the risk by 18 percent for those who are overweight, and 13 percent for normal-weight folks.

And although the data is less solid, researchers found that even if you're normal weight, one DIET soda a day ups your risk for Type 2 diabetes by 8 percent.

Of almost 21 million cases of diabetes expected to develop in the U.S. over the next 10 years, 1.8 million will be directly attributable to drinking sugary drinks.

Another new study reveals that sugar intake is linked to a more rapid development of Type 1 diabetes as well!

So if you're thirsty, peel an orange, slice a watermelon, sip iced tea or coffee, and enjoy as many glasses of water a day as you want.