WASHINGTON (AP) — Calley Means, a top adviser to Health Secretary Robert F. Kennedy Jr. and a chief advocate for the Make America Healthy Again movement, resigned from his position with the Trump administration Thursday.

In a statement, Means did not say why he was leaving. His departure comes as leading voices in the MAHA movement have expressed discontent with what they say is the Trump administration’s lack of progress on a variety of issues, including food security and regulating the weed killer glyphosate.

Means said he “leaves with tremendous respect” for President Donald Trump and Kennedy.

“The past two years have seen historic policy and cultural change to confront the chronic disease crisis and healthcare incentives that profit from us being sick,” Means said. “This movement is in the first inning and just getting started.”

Means was hired as a White House adviser early in the second Trump administration.…