Experts warn of malnutrition risks for Australians on GLP-1 weight-loss drugs

Health experts warn that millions of Australians using GLP-1 weight-loss drugs like Ozempic risk malnutrition and muscle loss, with extreme cases potentially causing brain damage, heart problems, or death. The extent of these complications is not being tracked. New University of Newcastle research found a critical evidence gap on rapid weight loss hazards. Symptoms like fatigue, nausea, and weakness overlap with nutrient deficiencies, including thiamine and magnesium, which can lead to irreversible brain damage or cardiac arrest if untreated. Experts recommend protein-rich diets, strength training, and hydration for GLP-1 users. They also call for better clinical guidelines and monitoring, noting the drugs may trigger eating disorders, while food chains adapt with smaller, nutrient-dense portions.