Bran crackers are key to this diet’s success.
Bran crackers are key to this diet’s success.

$20k ‘cracker diet’ CEOs swear by

US TV star Katie Couric is doing it. So is supermodel Molly Sims, and a slew of New York City's elite.

"We have CEOs and CFOs from all disciplines, whether it's finance or fashion. We're really dealing with people who work hard, but still want to play hard, therefore we have to cater to their lifestyles," Tanya Zuckerbrot, CEO of F-Factor, a weight management and nutrition counselling centre in New York City tells

Zuckerbrot is a registered dietitian and founder of The F-Factor diet, a fibre-rich weight loss program that has high-profile clients paying upwards of $US15,000 ($20,000) dollars to get her diet advice.

"I charge $US15,000 dollars for my start-up package which includes an initial consultation and a two-hour education class as well as follow-up visits. My associates charge $US4,500 ($6,000) for their packages," she says.

Zuckerbrot says the education part is the key to her success, as well as her clients'.

Tanya Zuckerbrot is a dietitian and the creator of the F-Factor Diet.
Tanya Zuckerbrot is a dietitian and the creator of the F-Factor Diet.

"Unfortunately, there is a lot of misinformation in the weight loss space. People have not been provided the right plan, so we take the time here to educate our clients rather than dictate to them and we explain the science behind our principals," she says.

That science is adding fibre-rich foods like fruits, vegetables, and GG Bran Crispbread crackers, her secret weapon, to every meal with a protein.

These 'appetite control crackers' are a key part of the diet.
These 'appetite control crackers' are a key part of the diet.

"That cracker is the cornerstone of F-Factor. We use it instead of bread because your body can't break it down so you get to eat these throughout the day and feel super full. It's also revving up your metabolism so you're going to lose weight without hunger," says Zuckerbrot.

GG Bran Crispbread, is an appetite control cracker that is grown in Norway - each cracker contains four grams of dietary fibre and only 20 calories per serving.

"It boosts your metabolism, it absorbs fat and calories and leaves you feeling full," she says.

"We recommend 35 to 40 grams of fibre a day," says Zuckerbrot.

There is also an F-Factor Diet book.
There is also an F-Factor Diet book.

"Unfortunately, we're in a fibre deficiency. We have refined all of our foods and the average person is only eating 9 to 11 grams of fibre a day."

F-Factor generates over a million dollars a year in revenue but Zuckerbrot knows her price point isn't for everyone.

"For people who are interested in the diet but they can't necessarily afford to work with us, there are two books available, 'The F-Factor Diet,' and 'The Miracle Carb Diet.'"

Australian nutritionist Susie Burrell believes the popularity of the F-Factor Diet is an example of clever marketing.

"There's nothing unique or special about a high fibre product or diet," she says.

"This is simply a classic example of very clever marketing in the diet space.

"Zuckerbrot charging a premium for individualised advice among those who have plenty of available disposable income has become a trend."

She also warns that a high-fibre diet should be approached with caution.

"High fibre diets and products can actually inflame gut issues or sensitivities if they are present.

"This diet will not suit everyone".

This article originally appeared on Fox News.