Health and Human Services Secretary Robert F. Kennedy Jr. said on Thursday that nixing fluoride from public drinking water may result in more cavities.

"It's a balance," Kennedy said during interview on Fox News' "The Faulkner Focus" on Thursday, June 26. "You're going to see probably slightly more cavities. Although in Europe, where they ban fluoride, they did not see an uptick in cavities. The issue is parents need to decide because the science is very clear on fluoride."

Fluoridation is not banned in Europe, according to a 2018 fact sheet from the American Dental Association (ADA). However, adding fluoride to drinking water is not as widespread in European countries as in the U.S. Some European countries fluoridate their water, while others do not and the reasoning and result of those actions varies, according to BBC reporting. USA TODAY has reached out to ADA for more information.

Kennedy's response came after anchor Harris Faulkner asked him how removing fluoride from public drinking water would affect children who don't have access to dentists or proper oral healthcare.

Kennedy has been pushing to ban fluoride in public drinking water. In April, during a meeting with President Donald Trump, he said that kids get "stupider" the more fluoride they take in. Kennedy's remarks were met with backlash, as the study he pulled from was criticized for inadequate statistical rigor and other methodological flaws.