The head chef told the Daily Telegraph his rant was inspired by his mother who is a coeliac disease sufferer and has an intolerance to wheat, rye, barley and oats.
But there are fears genuine sufferers' pleas for special dietary meals won't be taken seriously.
Maria Said, of Allergy & Anaphylaxis Australia, told the Telegraph the large spike in customised meal requests has led to a kitchen culture in which chefs can become complacent to genuine allergies.
She said any slip-up could kill an anaphylatix person, however she believes chefs are in a no win situation.
Finding answers is difficult. Short of chefs asking people if they are carrying an EpiPen to determine if they have a genuine allergy, there's nothing that can be done.
"People need to know that an aversion to brussels sprouts is not an allergy to brussels sprouts. But these demands happen all the time and it's a big problem."
Social media responded to Friesen's rant, with many people siding with the disgruntled chef.
"Allergic to the 20th century. please stay home," one person wrote.
"I would have considered it too hard and just packed my bags and gone home, its getting silly now...." another said.
"Nightmare diners who have no clue how damaging their preferences ("allergy") can be for those with genuine allergies who must be taken seriously. Educate yourselves, you idiots!"
By Heath Moore
