Anglo-Dutch food and consumer goods giant Unilever is reportedly planning to introduce diet versions of several of its key ice cream brands, including Magnum and Carte d'Or.

In a move aimed at winning back customers who are concerned about obesity, Unilever plans to relaunch around 20% of its ice cream portfolio in April, reported the Sunday Times.

The company also plans to remove E-numbers, highly refined sugar and other unhealthy ingredients from its products within three years.

"We are responding to increasing concern about obesity, and we think consumers' concern about the issue will continue to grow," James Hill, chairman of Unilever Ice Cream and Frozen Food, was quoted by the newspaper as saying.

"One of the great myths is that you can't sell a diet ice cream," he added. "We are going to debunk that. About 20% of our total ice-cream portfolio will be changed in a significant way. We think we will get a competitive advantage."