Former nutritionist Pierre Dukan is back on TikTok with slimming and health advice miraculous. His TikTok account has been a great success in recent months, registering 392,000 subscribers and more than 5 million views on some of his videos.

While TikTok is mostly popular with younger people, doctors are worried. "Perhaps many could be seduced. It was such a disaster the first time that indeed, it would be very serious to witness a new wave of his regime," says Dr. Jean-Philippe Zermati.