40% of weight loss of people taking Ozempic (semaglutide) is bone and muscle.
The drugs work by mimicking a natural hormone, GLP-1, which slows down the passage of food through the stomach, making people feel full for longer.
Stomachs remain full of days-old rotting food, which is unusual because less than 10% of food consumed is left in the stomach four hours after a meal
However, issues start to arise if the drugs slow down the stomach too much, causing some to develop gastroparesis.
