Weight-loss injections have transformed the lives of many people who struggled for years to shed excess weight. By suppressing appetite and reducing constant hunger signals, these drugs have helped users lose significant weight when traditional dieting failed. However, a growing question remains: what happens when the injections stop?
GLP-1 medications, such as Wegovy and Mounjaro, work by mimicking a hormone that regulates hunger. For many users, this means the persistent urge to eat fades, allowing better control over food choices. The results can be dramatic, bringing not only physical changes but also improved confidence and wellbeing.
Yet these medications are relatively new, and their long-term effects are still being studied. With around 1.5 million people in the UK paying privately for the injections, long-term use also comes with a heavy financial cost. As a result, many users eventually consider stopping, often with mixed outcomes.
Tanya Hall, a sales manager in the fitness industry, began using Wegovy partly to challenge how her weight affected how she was perceived at work. After starting treatment, she noticed a shift in how people treated her and felt more respected. While the weight loss met her expectations, the early months were difficult. She experienced nausea, headaches, sleep problems and noticeable hair loss, which may have been linked to rapid weight reduction.
Over 18 months, Tanya lost around six stone (38kg). However, every attempt to stop the injections has led to a sudden and overwhelming return of hunger. Within days, she found herself eating far more than expected, leaving her distressed and fearful of regaining weight. Despite feeling the medication now has less effect, she continues using it, worried about losing control without it.
Medical professionals say this reaction is not uncommon. Lifestyle GP Dr Hussain Al-Zubaidi explains that stopping GLP-1 drugs abruptly, especially at higher doses, can feel extreme. Hunger signals may return almost immediately, and studies suggest that within one to three years, people may regain between 60% and 80% of the weight they lost.
Ellen Ogley had a different experience. She turned to Mounjaro after her weight became a serious health risk, even requiring her to sign a waiver before surgery. Describing herself as an emotional binge eater, she found that the medication silenced her urges and gave her space to rebuild her relationship with food.
During 16 weeks on treatment, followed by a gradual taper, Ellen lost over three stone (22kg). She focused on nutrition, increased her activity levels and developed healthier coping strategies. After stopping the injections, she noticed some weight returning, which was mentally challenging, but she remained committed to her new habits. Since then, she has continued to lose weight and now reports a total loss of more than eight stone (51kg).
Experts stress that support after stopping medication is critical. UK health authorities recommend at least a year of follow-up guidance to help people maintain their progress through lifestyle changes. However, for those paying privately, such support is not always available.
Doctors warn that without broader changes to food environments and daily habits, many people risk regaining weight once medication ends. As Dr Al-Zubaidi notes, obesity is complex and not simply the result of a single hormone imbalance.
For now, experiences vary widely. Some, like Tanya, feel staying on treatment is the safest option. Others, like Ellen, believe long-term success is possible without ongoing medication. What is clear is that stopping weight-loss injections requires careful planning, support and realistic expectations.