Former Nestle Chairman Helmut Oswald Maucher attends the shareholders meeting in Lausanne, Switzerland, April 6, 2017.

Helmut O. Maucher, who transformed Nestlé into the world's largest food company after working his way from a job in a milk production facility to chief executive, died on Monday at his home in Bad Homburg, Germany, a suburb of Frankfurt. He was 90.

A company spokeswoman confirmed the death.