Stork is a brand of margarine spread manufactured primarily from palm oil and water, owned by Upfield, except in southern Africa, where it is owned by the Remgro subsiduary Siqalo Foods. When it was introduced into the United Kingdom and Ireland from 1920, housewives were initially suspicious of the health effects and cooking ability of margarine. As a result, it required a large amount of advertising in the 1930s to increase usage, supported by the Stork sponsored featuring the band of Carroll Gibbons.