A new DIY ‘oatzempic’ dieting trend has gone viral on TikTok, as users crave the same result as the controversial A-lister weight loss injection Ozempic – but does it work? Doctors weigh inA new DIY ‘oatzempic’ dieting trend has gone viral on TikTok, as users crave the same result as the controversial A-lister weight loss injection Ozempic – but does it work? Doctors weigh in