How candy makers shape nutrition science

It was a startling scientific finding: Children who eat candy tend to weigh less than those who don't.

Less startling was how it came about. The paper, it turns out, was funded by a trade association representing the makers of Butterfingers, Hershey and Skittles. And its findings were touted by the group even though one of its authors didn't seem to think much of it.

"We're hoping they can do something with it it's thin and clearly padded," a professor of nutrition at Louisiana State University wrote to her co-author in early 2011, with an abstract for the paper attached.

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The paper nevertheless served the interests of the candy industry and that's not unusual. The comment was found in thousands of pages of emails obtained by The Associated Press through records requests with public universities as part of an investigation into how food companies influence thinking about healthy eating.

One of the industry's most powerful tactics is the funding of nutrition research. It carries the weight of academic authority, becomes a part of scientific literature and generates headlines.

The only thing that moves sales is health claims.- Marion Nestle

Food companies say they follow guidelines to ensure scientific integrity, and that academics have the right to publish no matter what they find. Many in the research world also see industry funding as critical for advancing science as competition for government funding has intensified.

It's not surprising that companies would pay for research likely to show the benefits of their products. But critics say the worry is that they're hijacking science for marketing purposes, and that they cherry-pick or hype findings.

The thinner-children-ate-candy research is an example. It was drawn from a government database of surveys that asks people to recall what they ate in the past 24 hours. The data "may not reflect usual intake" and "cause and effect associations cannot be drawn," the candy paper authors wrote in a section about the study's limitations.

The candy association's press release did not mention that and declared, "New study shows children and adolescents who eat candy are less overweight or obese."

The headline at cbsnews.com: "Does candy keep kids from getting fat?"

Carol O'Neil, the LSU professor who made the "thin and clearly padded" remark, told The Associated Press through a university representative that data can be "publishable" even if it's thin. In a phone interview a week later, she said she did not recall why she made the remark, but that it was a reference to the abstract she had attached for her co-author to provide feedback on. She said she believed the full paper was "robust."

Ambiguity opens door for marketers

The flood of industry money in nutrition science partly reflects the field's challenges. Isolating the effect of any single food on a person's health can be difficult, as evidenced by the sea of conflicting findings.

The ambiguity and confusion has left the door open for marketers.

Since 2009, the authors of the candy paper have written more than two dozen papers funded by parties including Kellogg and industry groups for beef, milk and fruit juice.

Two are professors: O'Neil of LSU and Theresa Nicklas at the Baylor College of Medicine. The third is Victor Fulgoni, a former Kellogg executive and consultant whose website says he helps companies develop "aggressive, science-based claims about their products."

Their studies regularly delivered favourable conclusions for funders or as they call them, "clients."

In a phone interview, Fulgoni said industry-funded studies show favourable results because companies invest in projects with the "best chance of success." He said any type of funding creates bias or pressure to deliver results.

Play up nutritional perks

"The same kind of questions you're asking me, you should be asking [National Institutes of Health]researchers," Fulgoni said.

It's true that industry-funded studies don't have a monopoly on the problems in scientific research. Still, Marion Nestle, a professor of nutrition at New York University (and no relation to the food company) said unlike other research, industry-funded studies "are designed and produced to be useful in marketing. The hypotheses are market driven."

In the past year, 156 of the 168 industry-funded studies Nestle reviewed showed favourable results for sponsors. She said playing up nutritional perks has become a critical marketing tool in the competitive food industry.

"The only thing that moves sales," she said, "is health claims."

Avoid 'crossfire of a media on a rampage'

The documents show how researchers can be motivated by financial concerns. In 2010, Nicklas said in an email she decided against attending a General Mills health summit because she didn't want to "jeopardize" a proposal the group planned to submit to Kellogg. For another project, Fulgoni advised O'Neil against adding data.

"I suggest we focus on these first and 'hook' Kellogg for more funding before conducting more analyses," he wrote.

For the paper on candy-eating children, a disclosure says the funders had no role in the "design, analysis or writing of this manuscript." But emails obtained from LSU show the National Confectioners Association made a number of suggestions.

"You'll note I took most but not [all]their comments," Fulgoni wrote to O'Neil about the paper in 2010.

"I have finally waded through the comments from NCA. Attached is my attempt to edit based on their feedback," he wrote about a similar paper on candy consumption among adults.

The trumpeting of their research was also carefully timed. In June 2011, a candy association representative emailed O'Neil a critical article about a professor with industry ties.

"I'd like to monitor the fallout from this story, and give a little bit of distance to our research piece. I do not want to put you in the crossfire of a media on a rampage," wrote Laura Muma of FoodMinds, an agency that represented the candy association.

Fulgoni said the group runs manuscripts by clients to check for errors or omissions.

"It's more using them as a set of eyes to make sure we haven't forgotten something," he said.

O'Neil said she takes only "grammatical corrections from the clients I can't speak for the others."

For the paper about candy and children, Chris Gindlesperger, a spokesman for the National Confectioners Association, said the group was given "the courtesy of reviewing the manuscript" and that its suggestions did not change results. He pointed to another paper that came to the same conclusion by analyzing multiple studies, including the one funded by the candy association.

O'Neil said she believed it was important to research foods such as nuts and milk to know whether they're good for you, and that it is difficult to get government funding for such studies. She said Fulgoni's consulting business, Nutrition Impact, gets most of the funding for their projects and that she receives reimbursements for costs such as travel, but no salary compensation. As research faculty, O'Neil is expected to publish.

A Baylor College of Medicine representative, Lori Williams, said all research funding goes through the college. She said the college did not receive payment from the candy association or Nutrition Impact for the paper on children and candy co-authored by Nicklas.

The records obtained by the AP show Nicklas sent Nutrition Impact an invoice for $11,500 US for three manuscripts in 2011, including $2,500 US for "candy." After being provided a copy of the invoice, Williams said the school began a review "surrounding funding and disclosures on this research."

"We take this very seriously, and your information is of significant concern to our leadership at the College," Williams wrote.

Papers co-authored by O'Neil and Nicklas also list support from the U.S. Department of Agriculture general funding the two professors receive from the department through their respective universities for research work.