US GROUP Kraft Foods has clinched a takeover deal for British confectioner Cadbury, after winning support from shareholders representing 72 per cent of the maker of Dairy Milk chocolate.

The news came after Cadbury's board agreed last month to Kraft's improved cash-and-shares bid worth STG11.9 billion ($A21.32 billion) or 850 pence per share, ending a bruising takeover battle.

The shareholders' backing today will allow Kraft, the world's second-biggest food company, to gobble up Cadbury, whose colourful history as an independent British company dates back to 1824.

Kraft said in a statement that Cadbury investors holding 71.73 per cent of the group have accepted the offer. The US giant also declared its bid "unconditional", meaning all of its takeover conditions have been met.

"Kraft Foods announces that all of the conditions to its recommended final offer have been satisfied or waived and, accordingly, the offer is wholly unconditional," the firm said.

"The final offer will remain open until further notice and at least 14 days' notice will be given if Kraft Foods decides to close the final offer.

"Cadbury securityholders who have not yet accepted the offer are encouraged to do so without delay."

Kraft, whose takeover triumph was masterminded by chief executive officer Irene Rosenfeld, added that it would seek to cancel Cadbury's listing on the London Stock Exchange after it reaches the 75-per cent level.

When Kraft reaches 90-per cent support it will be able to automatically snap up any remaining stock.

The takeover will make Kraft one of the biggest global players in chocolate and confectionery, giving it major brands like Creme

Egg and Trident chewing gum to go with Kraft's Toblerone, Milka, Suchard and Cote d'Or.

"The combination of Kraft Foods and Cadbury creates a global powerhouse in snacks, confectionery and quick meals," Rosenfeld said.

"Together we have impressive global reach and an unrivalled portfolio of iconic brands, with tremendous growth potential."

Kraft has meanwhile sought to allay growing concerns that the group could axe jobs following the takeover.

"I warmly welcome Cadbury employees into the Kraft Foods family and look forward to meeting many of them in the days and weeks ahead," Rosenfeld added.