Nguyen Thuc Thuy Tien, Miss Grand International 2021, was arrested on Monday in connection with a consumer fraud investigation involving Kera Supergreens Gummies, a fiber supplement she actively promoted.
Vietnam’s Ministry of Public Security confirmed that the 26-year-old beauty queen is under investigation for allegedly deceiving consumers about the supplement’s contents and health benefits.
Authorities reported that Tien held a 30% profit share in the Kera Supergreens Gummies business, which she co-owned with other investors. Her involvement in the marketing and promotional campaigns of the product drew public scrutiny, especially after discrepancies in the supplement’s nutritional claims were discovered.
In December 2024, Tien publicly endorsed the product on Facebook alongside influencers Pham Quang Linh and Nguyen Thi Thai Hang. She marketed the gummies as a healthy snack, claiming each gummy contained “the equivalent of one plate of vegetables” and was suitable for all ages.
The controversy began when a customer submitted the product for independent testing at Quality Assurance and Testing Center 2. The results revealed that each 30-gummy box contained only 0.51 grams of fiber—far below the amount advertised. The revelation led to significant backlash, prompting Tien to delete all promotional content from her social media accounts.
At the request of the Ministry of Health’s Food Safety Department, the Ho Chi Minh City Food Safety Management Authority conducted an official analysis of the product. While the gummies’ sugar, protein, fat, and energy levels were consistent with the declared values, authorities noted that the packaging failed to disclose fiber content. Despite being marketed as a fiber supplement, the product did not meet the required standards and was ultimately declared counterfeit.
Investigations further revealed that the vegetable powder used in the gummies, which was claimed to be sourced from VietGAP-certified farms, was actually substandard. Production staff had allegedly been instructed to use low-quality powder with fiber levels between 0.61–0.75%, while the label falsely claimed a 28% fiber content.
Additionally, the gummies reportedly contained 35% sorbitol—an artificial sweetener known for its laxative effects—along with other undisclosed additives. Consumers were led to believe that the gummies promoted digestion through natural vegetable fiber, when in fact, the laxative effect was due to the high sorbitol content.
The case has sparked public outrage and raised broader concerns about the regulation and safety of dietary supplements marketed online. Investigations remain ongoing.
