TreeHouse Foods has announced the resignation of Michelle R Obama as a director of the company, citing increased demands on her time.

Obama also served as the lead independent director of the US company's board.

Sam K. Reed, chairman of the board, said: "We would like to thank Michelle for her dedicated service on behalf of the company's shareholders. While we regret her resignation, we understand and respect her decision."

Obama's resignation was effective as of yesterday (22 May).