We thought diet soda was safe. But new research links daily consumption to higher stroke and dementia risk. Here's what you ...

With The Coca-Cola Co. (NYSE KO)  and Purchase-headquartered PepsiCo (PEP: NASDAQ) each set to launch pure cane sugar colas for mass American consumption this fall, the question arises:   What will ...

New research links daily diet sodas and artificially sweetened drinks to nearly 3x higher risk of stroke and dementia, urging caution in daily choices.

"Diet cola drinkers in the U.S. told us they wanted aspartame-free Diet Pepsi and we're delivering," Seth Kaufman, SVP Pepsi and Flavors Portfolio, PepsiCo North America Beverages, said in a release.

Americans aren't buying the new Diet Pepsi — and the company might make some major changes to fix that By Kate Taylor Jun 9, 2016, 7:47 AM PT Getty Images/Fernando Leon Diet Pepsi is in trouble.

Meanwhile, Diet Coke's share has increased in that time from 8.7% to 9.6%. Diet Coke, which still only uses aspartame, overtook regular Pepsi to become the No. 2 soda brand in 2010.

Meanwhile, Diet Coke's share has increased in that time from 8.7 percent to 9.6 percent. Diet Coke, which still only uses aspartame, overtook regular Pepsi to become the No. 2 soda brand in 2010.

Dez begins her video by speaking directly into the camera. “This lady ordered a Diet Pepsi, and then she told me it was flat and asked if I could get her a new one,” she says.