It was good while it lasted, but it didn't last long. Diet Coke Frost, touted as the first frozen product in the brand's 31-year history, has been pulled from 7-Eleven stores after just a month.

A "significant" number of stores have have had quality issues related to the freezing consistency of the product, Coca-Cola and 7-Eleven said in a joint statement. There are no health or safety issues with Diet Coke Frost, they said.

"In keeping with both companies' quality standards, 7-Eleven has decided to remove the product," the statement said. It's not clear whether the companies are working to return Diet Coke Frost to market.

Coca-Cola and 7-Eleven had been promoting the product heavily to the media, in addition to in-store signage and sampling efforts.

Consumers had been reacting well, with many applauding the addition of a low-calorie cola option to 7-Eleven's Slurpee offerings. Diet Coke Frost, which had a cherry flavor and boasted 30 calories per 20 oz. serving, had overwhelmingly positive reviews at Slurpee.com.

The product, one of the few diet Slurpee options available, became available nationwide in 7-Eleven locations in late February. The other low calorie options include Fanta Sugar-Free Mango and Sprite Cranberry.

There's a reason why there are so few diet frozen products on the market, said John Sicher, editor and publisher of Beverage Digest. "Formulating diet frozen [soft drink] products with diet sweeteners is complicated, as sweeteners like sugar and high fructose corn syrup help control and enhance viscosity at cold temperatures," he said.