Emily Gellis
Introduction
Emily Gellis is a New York fashion influencer who spent the better part of six years waging an Instagram campaign against F-Factor diet founder Tanya Zuckerbrot, one of America’s best-known nutritionists. Beginning in mid-2020, Gellis reposted anonymous health complaints about the F-Factor diet and its fiber products, and escalated into personal accusations β that Zuckerbrot used drugs, dodged taxes and engaged in criminal activity. The campaign coincided with the collapse of a business that had been valued at more than $40 million. In September 2026, according to New York court records and the NY Post, Gellis agreed to a public apology and to pay Zuckerbrot $240,000 to settle Zuckerbrot’s defamation lawsuit.
Background Information
Gellis built her following as a fashion influencer, posting about affordable clothing to roughly 183,000 Instagram followers as of September 2020. In April 2020, per Business Insider’s timeline, she discovered two now-deleted Instagram accounts discussing health allegations against F-Factor β the high-fiber diet program Zuckerbrot founded, built on her 2006 book “The F-Factor Diet” and its “eat carbs, work out less” trademark, with the powders and bars launched in 2018. Gellis began discussing the allegations on her own stories, received direct messages from women reporting health problems, and by August 2020 was posting hundreds of stories a day screenshotting them.
The Controversy or Incident That Led to Their Cancellation
Civil settlement, not criminal conduct. Gellis was never criminally charged; this is a defamation case that ended in a court-filed settlement. Her own apology, filed in New York Supreme Court, admits the personal allegations were false. The underlying health-harm claims about F-Factor products that she amplified were allegations that were never proven β courts have made no finding that the products caused anyone’s injuries.
Over 75 days in 2020, Gellis posted more than 4,500 Instagram stories and posts about Zuckerbrot and F-Factor, according to court papers, linking the products to gastric distress, hair loss, panic attacks, UTIs, miscarriages and even death, and alleging the fiber powders contained dangerous levels of arsenic. She contacted retail partner Bloomingdale’s to warn it was selling “poison,” and pressed brand partners, celebrity clients and ambassadors to denounce Zuckerbrot. Zuckerbrot’s October 2020 lawsuit in New York Supreme Court claimed Gellis had broadcast more than 4,500 “false, defamatory, and or harassing statements” to over 200,000 followers, calling the diet “poisonous” and saying it “could cause death”; an affidavit in that suit said monthly revenue had fallen from about $1 million to under $90,000 and that a $40 million investment had collapsed.
The campaign became increasingly personal: Gellis compared Zuckerbrot to Jeffrey Epstein, Harvey Weinstein and the Sackler family, called her a “danger to society,” and alleged drug use, tax evasion and criminal activity. In March 2022 Zuckerbrot filed a second defamation suit, and Judge Joel Cohen of the New York Supreme Court allowed her defamation and product-disparagement claims to proceed, citing a “barrage” of posts “often in intensely personal and vulgar terms” and finding she had sufficiently alleged actual malice; he also rejected Gellis’s Section 230 defense. Discovery, per the Post, showed Gellis had received fewer than 100 complaints β against her public claim that more than 10,000 people had contacted her β and Gellis acknowledged in the settlement that the claims about the number of purported victims were inaccurate.
The settlement, entered by court order on September 22, 2026, brought the public apology: “What began as an inquiry evolved into a sustained and harmful campaign that was not grounded in verified facts,” Gellis wrote. “None of these statements were true,” she said of the personal allegations β adding, “I did not rely on medical, scientific, or qualified expert analysis… I relied heavily on unverified and anonymous information from social media, which I presented as fact.”
Public Reaction and Consequences
The story Gellis started became a national one: the New York Times featured her in a glossy photo shoot in August 2020 (“The Great Diet Crash,” per the Post’s account), carrying the allegations off Instagram and into the mainstream. The consequences landed hardest on the target: Zuckerbrot says the campaign left her suicidal, unable to leave the house, more than $1 million in legal fees, and stripped a $1-million-a-month business down to a fraction of itself; her attorney confirmed the litigation settled under the September 22, 2026 order. Gellis made the Instagram account where she posted about F-Factor private after the first suit was filed, per Us Weekly, though her follower count stands at 185,000 today. Zuckerbrot has called the affair “the worst example of cancel culture.”
Current Status
The case is settled: under the order entered September 22, 2026, Gellis pays Zuckerbrot $240,000 β structured as $500 a month for the next 40 years, which Zuckerbrot says represents the medical bills for the trauma treatment the campaign forced on her β and the public apology stands in the court record. Zuckerbrot’s attorney told the Post the litigation “has been settled.” No criminal charge was ever brought against Gellis; the resolution is entirely civil. Zuckerbrot, meanwhile, is preparing to relaunch F-Factor in 2027, telling the Post she has no intention of rebranding.
Impact on Their Career/Life
The settlement ends Gellis’s six-year run as the face of the anti-F-Factor movement with a permanent judicial record: a court-filed admission that her campaign “was not grounded in verified facts,” an admission that specific personal allegations were false, and a payment plan that runs until 2066. During the fight she had already retracted at least one claim β a woman’s fabricated miscarriage story β per Rolling Stone. The episode’s broader footprint is the precedent: a $240,000 judgment-by-settlement and a groveling apology for what a court came close to calling actual malice, in a case that shows influencer cancel campaigns can carry a price tag. For Zuckerbrot it cost a business, six years of litigation and, by her account, nearly her life β and she says she will rebuild without rebranding.
Sources
- New York Post, “How Tanya Zuckerbrot lost her $40M diet empire to one troll, and the six year fight for justice” (October 4, 2026) β source
- Business Insider, “F-Factor drama timeline: How the high-fiber diet led to the biggest controversy in Instagram’s health and wellness community” (September 11, 2020) β source
- Us Weekly, “Celebrity Wellness Guru Tanya Zuckerbrot Fights Back Against ‘Smear Campaign’ Targeting Popular F-Factor Program” (December 15, 2020) β source
- Rolling Stone, “Lawsuit: Health Influencer’s Diet Made People Sick” (October 12, 2022) β source