A West Midlands MP has called for a boycott of Cadbury after accusing it of betraying British farmers.
The world-famous chocolate maker was founded in Birmingham in 1824 and employs 3,000 people at its Bournville factory.
But Shropshire MP Daniel Kawczynski (Con Shrewsbury & Atcham) has announced he is boycotting the brand, and urged colleagues to follow suit.
He attacked the firm in the House of Commons, sponsoring an official Commons motion urging colleagues "to boycott Cadbury's products until the company stops importing French sugar".
Farmers in his constituency were suffering because of the decision to import sugar, the MP said.
The row began after the House of Commons Food and Rural Affairs Committee, which includes Mr Kawczynski, conducted an inquiry into new EU rules which British sugar farm-ers say could put them out of business.
The committee questioned executives from businesses involved in the sugar trade, including Cadbury.
Mr Kawczynski said he was furious when he learned the firm was now importing sugar from France.
He said: "They told me they were trialling it because it was cheaper.
"I have 81 sugar beet farmers in my constituency. They are already facing dire straits.
"I personally have boycotted all Cadbury products. I don't intend to buy any more of their chocolate unless they are prepared to show a little bit of patriotism and buy English sugar.
"What they are doing is threatening the livelihoods of my constituents."
A spokesman for Cadbury said: "We buy the vast bulk of our sugar from British Sugar, but like any business we need to explore other suppliers in order to maintain costs and remain competitive.
"We are disappointed by the MP's remarks, because Cadbury is one of the great names in manufacturing.
"We continue to employ thousands of people across the UK."