Marmite fans in Denmark are planning a revolution against the authorities for banning the spread.

Several groups on Facebook have already emerged in reaction to the ban imposed by the Danish Veterinary and Food Administration because the product is fortified with added vitamins. The groups include "Eating marmite in Denmark because you're a fearless bastard", "Save Marmite in Denmark, Boycott Danish Bacon and Lego Now!!" and "Bring back Marmite in Denmark".

There is even an Expats Annual Marmite Day being organised, due to be held, if the page is to be believed, on 6 June. Founder Pat Kelly encouraged outraged Marmite eaters in the country to join forces and, presumably, eat extra Marmite on the allocated day.

"Spread the word, but most importantly spread the Marmite," wrote Kelly. "On every street in good old Denmark, show 'em what they're missing after they've banned this iconic product from our supermarket shelves! Make it a Marmite day everyday folks! Let the rise of the Marmite army begin!"

But even on the page, opinion remained divided. A perplexed Ray Weaver wrote: "but... it's horrible..."

On the page calling for a boycott of Danish goods, fan Joe Figg feared the ban could have far-reaching consequences. "This dastardly move could bring about global warming of toast," he wrote. While Mark Salisbury wrote: "Down with spread fascism!"

Unilever, which produces Marmite, is weighing up its options to keep Marmite on Danish shelves.

"We are sad to hear reports that our devoted fans may not be able to purchase Marmite in Denmark," said a spokeswoman. "We're looking into ways to ensure our Marmite lovers will not be left without their beloved spread. In the meantime we want to remind our fans in Denmark that they can still purchase Marmite from the Marmite shop - www.marmiteshop.co.uk".

She said the Facebook pages revealed a true love of the divisive savoury spread. "People are being very vocal and passionate about their favourite product," she said.