To the dismay of traditionalists, more manufacturers and retailers have have been using the Americanised spelling of yogurt that drops the letter 'h'.
But producers have defended the move, saying the British spelling of yoghurt is now outdated and should reflect the industry changes.
The debate has now spilled into the letter's pages of the food industry's trade journal, The Grocer.
In a latter Clair Cheney, the director general of the Provision Trade Federation, asked: "Isn't it time The Grocer caught up with the fact that the industry has long since dropped the "h" from yoghurt?"
"I really think that given the fact the industry has decided to go with yogurt that it is about time for others to fall into line.
"It did not occur to me that this would be following the American spelling; that was certainly not my intention. Rather it just seems sensible to drop the "h" to avoid any unnecessary confusion."
To back her case Miss Cheney cited evidence from the Oxford English Dictionary, which identifies the word as derived from Turkey, which introduced the dairy product to the world and spells it yogurt.
The English equivalent of the Turkish 'g' has traditionally been 'gh' and, along with New Zealand and Australia, Britain has mostly retained the 'gh' spelling.
Her claims appeared to get backing from English experts.
Writer and etymologist Michael Quinion, who documents changes in language and spelling, said most British dictionaries use the American version as the preferred spelling.
"There is no right or wrong here, but evidence suggests that yogurt without the 'h' will become dominant," Writer and etymologist Michael Quinion said.
"It is more crisp and short, the word is spelt as it sounds.
"The Americans have been using yogurt as the correct spelling for at least 150 years."
He added: "It does seem that yoghurt with the "h" will slowly disappear for good."