A doctor has issued a stark warning about a common side effect of weight loss injections, describing it as 'absolutely miserable'. NHS doctor Suraj Kukadia, known online as Dr Sooj, highlighted constipation as a frequent issue for patients using GLP-1 medications such as Ozempic, Mounjaro, and Wegovy.
In a TikTok video, Dr Kukadia explained that these drugs slow gastric emptying, which helps reduce appetite but also affects the entire gastrointestinal tract. 'The contractions in your intestine slow down, meaning stool will move through much more slowly,' he said. 'This means there's more time for water to get absorbed, and you end up constipated.'
The British Heart Foundation lists constipation as a 'very common' side effect, affecting one in 10 people according to patient leaflets for Mounjaro and Wegovy. Other side effects include nausea, diarrhoea, stomach pain, tiredness, hair loss, low blood sugar, and a fast heart rate. In rare cases, acute pancreatitis may occur in up to one in 100 users.
Dr Kukadia advised staying well hydrated and maintaining a fibre intake of 30 grams daily from fruit, vegetables, nuts, and whole grains. He cautioned against increasing fibre too quickly to avoid bloating. Patients experiencing side effects should consult their doctor, who may adjust the dose or recommend stopping the medication.
