Kraft and Heinz products.

U.S. food giant Kraft may have withdrawn its hostile offer for Unilever late Sunday but some analysts say that the European consumer goods group should not breathe a sigh of relief just yet.

While U.K. takeover law forbids Kraft from revisiting the offer for the whole of Unilever within the next six months, analysts at Citi think there are other options available to the owner of widely popular Kraft cheese sticks and Heinz tomato ketchup.