Nearly three quarters of influencers promoting food supplements on TikTok or Instagram violated the rules, according to research by the Dutch Food and Consumer Product Safety Authority (NVWA). In more than 20 cases, the violations were classified as “serious deception.”

The NVWA named people involved publicly for the first time. Those identified included Olympic hockey players Yibbi Jansen and Maria Verschoor, a television presenter and fitness influencers with hundreds of thousands of followers.