Katie Couric now accused of deceptive editing for 2014's 'Fed Up'

Another Katie Couric documentary has come into question.

Couric, who already faced backlash for questionable editing in her documentary "Under the Gun," is now being accused of doing the same thing with her 2014 film "Fed Up."

A subject from "Fed Up," which focuses on the food industry and obesity, has come forward to say he was misrepresented in the documentary.

"They had reached out to me...and indicated to me that they were particularly interested in having a diversity of viewpoints," Dr. David Allison, who appeared in "Fed Up," told FOX & Friends.

Allison said he was taped for 90 minutes, but the film only included a small fraction of his interview. The clip used shows Allison as he loses his train of thought and appears uncertain of how to answer a question.

Allison was discussing whether sugary beverages contribute more to obesity over other foods, when Couric, off-camera, asks him to back up his claims with scientific evidence. Allison begins to answer, stops and then asks if he can pause to gather his thoughts. The interview then cuts off.

He says the film failed to show the rest of his answer.

"[I was told that] if at any point something didn't come out quite right...just go back and redo that...that's what I was doing," Allison explained of his pause.

He added, "She also made clear to me that I should speak in terms that people who aren't trained scientists could understand...I wanted to carefully choose my words...I gave a very clear answer after that pause...I wasn't as clever as the people in ['Under the Gun'] to tape [the interview] myself."

The segment that caused backlash from "Under the Gun" shows nearly 10 seconds of silence after Couric asks the activists how felons or terrorists could be prevented from purchasing a gun without background checks.

Audio of the actual exchange leaked in May and revealed an almost immediate response to the question.

Couric wrote in a message on the film's website that she regrets not raising her initial concerns about the segment "more vigorously."

A rep for Couric did not immediately return FOX411's request for comment. A rep for The Weinstein Company, who produced "Fed Up" did not immediately return FOX411's request for comment.

The Associated Press contributed to this report.