We wonder if New York City Mayor Michael Bloomberg knows that before he announced his proposed ban on sugary drinks larger than 16 ounces, 7-Eleven had already reduced its 64-ounce “Double Gulp” by 14 ounces.

Why did the convenience store giant shrink the size of its “Double Gulp”?

It’s not what you think. Contrary to what you might assume, 7-Eleven didn’t change sizes in preparation for Bloomberg’s controversial ban. No, it was for something much more practical: “Double Gulps” were too big for cup holders in most American cars, said 7-Eleven spokeswoman Margaret Chabris.

“It was a request for something that was a little more car-friendly,” she told The Daily.

7-Eleven estimates that 25 percent of the U.S. population lives within a mile of one of its stores, The Daily reports.

“The chain sells nearly 38 million gallons of fountain drinks per year worldwide, or enough to fill 50 Olympic-sized swimming pools,” the report adds.

Because of its ability to provide so many Americans with sugary goodness, The Daily asked Chabris whether she believes 7-Eleven has a responsibility to help fight obesity. She responded by pointing out that the chain sells an awful lot of diet and sugar-free drinks.

“As for the size of the containers, she said 7-Eleven was merely responding to demand,” the report adds. “While declining to give specific numbers, Chabris said sales of the 50-ounce Double Gulp remain the fastest-growing of all the company’s cup sizes.”

The store’s business philosophy, according to Chabris, is simply: “If it didn’t sell, we wouldn’t still be carrying it.”

But let’s say you just can’t go on without you favorite mondo-sized 7-Eleven über-gulp. Don’t worry, The Daily has good news for you:

Lovers of the old 64-ounce drink size need not despair. It’s still possible to find at least one other chain that still sells half-gallon containers of soda. A monster offering from Roy Rogers is available at several of the chain’s restaurants located along the New Jersey Turnpike, as part of a special deal on 64-ounce insulated plastic mugs whose thick handles appeared sized for a thirsty gorilla.

An employee at the franchise in the travel plaza near Haddonfield, N.J., said the $6.99 mugs are particularly popular with families who want to keep a lot of soda cold and share it on long drives.

Double Gulp No More: 7 Eleven Reduced Drink Size Even Before NYC CrackdownImage courtesy The Daily

(H/T: myfoxdfw.com, front page photo source: flickr user soonerpa)