The mammoth "Challenge" burger is made up of three beef patties, each weighing 175g two eggs, two hash browns, three bread buns, bacon, cheese and onion rings served with a side of fries.
Zisser's success has sparked interest in competitive speed eating.
NZME reported this week that for her, over-eating is a sport, and one she trains for with a new food challenge and plans to return to America soon to take part in more professional eating competitions, possibly even moving there permanently.
What is surprising (if indeed eating 100 pieces of sushi in one sitting doesn't leave you slack-jawed) is that both Zisser and her fellow crammer Miki Sudo are slim and petite.
Why do they do it?
Perhaps for the same reasons anyone enters a competition, for the thrill of winning, and because they have a skill, presumably similar to a sword swallower, to scarf a massive quantity of food. Miki Sudo's website slogan reads "because everybody is good at something".
Competitive speed eaters can fill their bank accounts as quickly as their stomachs, with big competitions in the states offering thousands of dollars in prize money.
You could argue competitive eating is just a bit of harmless fun. A spectator sport. There is admittedly the lure of both fascination and horror watching Zisser in action. A bit of freakish entertainment.
How harmless is it? Zisser and some of her fellow competitors may be petite, but many Kiwis are not.
With New Zealand obesity levels at an all-time high, it seems many of us make eating a sport but are not winning. Particularly alarming are child obesity levels. One in nine children are considered overweight, Ministry of Health figures show, while one in five are classified as obese. Those figures have earned New Zealand a third-highest ranking in the OECD for childhood obesity. It is not a bronze medal to be proud of.
In my view, the Mount restaurant's Challenge Burger could encourage people to overeat and come back for more. The restaurant offers a 50 per cent discount on the next meal "if you can finish it all".
Stuffing yourself surely is not good for you. It is hard to watch a video of Zisser in action, face red, sweating, bent over a table and sometimes seemingly retching.
Auckland University of Technology Professor of Nutrition Elaine Rush told NZME if most people force-fed themselves sushi they would experience a feeling of extreme bloating followed by nausea and vomiting and diarrhoea or constipation.
Doesn't sound harmless and it doesn't sound like fun.
The ritual of overeating then vomiting reminds me of old stories about Romans feasting like gluttons and then purging in a vomitorium so they could return to their prone position to resume eating.
Overeating can also be a mental illness or addiction for people who suffer from eating disorders like compulsive eating and bulimia.
Bulimia - a ritual of secret overeating and then vomiting - is back in the spotlight with a new documentary,Amy, which was screened at the Cannes Film Festival.
Chronicling the life of singer Amy Winehouse who died in 2011, it depicts her struggle with drugs and alcohol but also her much less publicised struggle with bulimia.
Last year actress Diane Keaton opened up about her secret battle with bulimia, revealing she used to gorge on 84,000 kilojoules a day, telling media a typical evening meal consisted of "a bucket of fried chicken, several orders of fries with blue cheese and ketchup, a couple of TV dinners, a quart of soda, pounds of candy, a whole cake, and three banana cream pies."
No one is suggesting that competitive overeaters are bulimic. But people who watch their videos may be, and may include young girls, vulnerable and suggestible to eating disorders.
I find reading about the way Zisser and other competitive eaters have to prepare and condition their bodies disturbing.
There seems something terribly debauched and wasteful in eating 100 pieces of salmon sushi and humongous burgers that no one nutritionally needs in one sitting, when others go hungry.
Earlier this month a nationwide survey of lower decile schools indicated how many kids don't have breakfast or lunch, with those in some areas reporting up to 80 per cent of students arriving without food each week.
I am sure some of these children would love to be able to have even one piece of salmon sushi or a small portion of the $25 giant Mount burger.
I bet these hungry children couldn't imagine racing to finish a $25 meal - if ever they had such a luxury I imagine they would savour every bite rather than inhale it in six minutes and 49 seconds, the current record.
I understand Pronto's reasons in the quieter winter months to want a gimmick to bring in the punters. I understand the reasons for jumping on the media attention Zisser is courting.
But there could be healthier and more community-minded ways that would still attract attention and publicity.
Instead of a massive burger, how about donating a burger meal one day a week to a struggling Bay family?
And leave overeating to where it belongs, in the history books about freak shows.
