Rhona Applebaum, Coca-Cola’s chief scientist and health officer, is stepping down from the company.

The news follows reports that Applebaum helped set up a nonprofit research group tasked with downplaying the role of sugary drinks in the obesity epidemic and highlighting the benefits of exercise.

In August, The New York Times reported that the company had financial ties to the research group—the Global Energy Balance Network, which is made up of university researchers. The company provided the group with $1.5 million in research funding, $1 million of which went to the University of Colorado where group president, James O. Hill, is a professor. Further investigations found that the beverage company helped pick the group’s leaders, draft its mission statement, and design its website. The research group argues that Americans are too fixated on calories and diet and should be more concerned about exercise.

As chief scientist, Applebaum was thought to be central in orchestrating the group.

After the financial connection came to light and drew criticism, the University of Colorado returned the $1 million dollars to Coca-Cola. Still, both the company and researchers said that studies were not influenced by the interests of soda sales.

However, a series of e-mails between Hill and Coca-Cola executives, obtained by The Associated Press, weakens that argument.

In one e-mail from last November, Hill wrote to a top Coke executive: "I want to help your company avoid the image of being a problem in peoples' [sic] lives and back to being a company that brings important and fun things to them."

In another e-mail exchange, Applebaum informs Hill that researchers in the group need to be amenable to working with industry. "That is non-negotiable," she wrote.

A spokesperson for Coca-Cola told The New York Times that Applebaum, aged 61, was retiring and had made the decision in October.