But kiwifruit was not the only thing causing controversy in the office.
Swain told the Herald that keeping the skin on the furry fruit caused debate: some like it skin off and others prefer it skin on.
Despite the debate, the pizza was gone within an hour.
Swain admitted the weird combination was "absolutely disgusting".
He told the Herald he is not a pineapple on pizza kind of guy - it's his "biggest disgust in life", admitting he's more a plain pizza person, often going for a "meat lover's with BBQ sauce".
"We are here to help people to create a plan to help people get off [smoking]" Swain said.
The photo of the pizza was posted to Quitline's facebook page.
One person commented: "What is this cursed image?"
This is not the first time kiwifruit has been added to pizza: a Swedish man this year posted a photo on Reddit of a kiwi pizza.
The tourist claims he was served a kiwifruit pizza at a Swedish pizzeria, labelling it "an unholy abomination".
"Everyone talks crap about pineapple. But THIS is wrong on soooooo many levels I've lost count," one commenter wrote.
"Every day we stray further from what Italians consider a pizza."
In 2017 Bill English created a huge uproar after posting a selfie with a ham, pineapple and spaghetti pizza with the caption "Cooked dinner for the family last night - like if you agree with tinned spaghetti on pizza!"
The pizza received mixed reviews, but Kiwis backed English's claims with one saying "Leave Bill English alone. If you had 6 kids canned spaghetti would be the height of gourmet cooking for you too!"
But his creation led to US show host John Oliver condemning the former PM.
"That is not dinner. That is an actual hate crime. What is your problem, Bill? You made that to feed to your family, your children, Bill? How are you not in prison right now?"