Exclusive | They canceled her fiber empire. Now everyones fibermaxxing and F-Factors Tanya Zuckerbrot wants back in

Tanya Zuckerbrot is resurrecting F-Factor — and the product at the center of its scandal is coming back exactly as it was.Six years after allegations that her fiber powders and bars made dozens of women sick ignited a social media war, lawsuits and a public fall from grace, the Manhattan dietitian is preparing to relaunch her brand by spring 2027.“When we relaunch, I’m bringing back the F-Factor products people knew and loved.I continue to stand behind their formulations because they were developed based on sound nutritional science, and that foundation has not changed,” Zuckerbrot told The Post.The 55-year-old plans to resume using the original signature powder formula — whey protein, partially hydrolyzed guar gum, stevia and monk fruit — from the same manufacturer.“Why wouldn’t I?” she said.

“The products have now been proven to be safe.I was so proud of this product.”It’s a bold bet in a wellness world now obsessed with fibermaxxing, supplement stacking and experimental peptides.

But for Zuckerbrot, fiber was never a trend.It was the foundation of the empire she spent decades building.Ten years ago, Zuckerbrot might have been the Gwyneth Paltrow of fiber.The glamorous Manhattan dietitian built a cult following around her supplements and fiber-packed snacks, with devotees like Katie Couric, Molly Sims and an army of well-heeled elites who funded — and talked up — her growing empire.Park Avenue heiresses stirred her 20/20 fiber-protein powder into morning coffee.

Brooklyn Heights moms swapped bread for Scandinavian fiber crackers.Tribeca influencers paraded around in sweatshirts emblazoned with “Fiber” instead of “Fendi.”Zuckerbrot transformed the humble dietary staple into a wellness status symbol — and the foundation of a $40 million business.A University of Michigan graduate with a master’s degree in nutrition from NYU, she built her reputation through a private Manhattan practice, advising clients on a high-fiber, hig...