Weight loss injections such as Wegovy and Mounjaro are used to help people who have struggled with obesity and long-term weight gain. More specifically, when excess weight is affecting health conditions, including prediabetes, hypertension or joint disease.
However, these injections are not intended to replace healthy lifestyle habits. They work best as part of a structured weight management programme that includes proper nutrition, physical activity and medical supervision. At The Oakley Medical Practice, weight loss injections are prescribed alongside dietary advice and lifestyle support to help patients achieve safe and long-term results.
How Do Weight Loss Injections Work?
Weight loss injections belong to a group of medicines known as GLP-1 receptor agonists. Wegovy and Mounjaro mimic a natural hormone in the body called GLP-1, which regulates our appetite and digestion, leading to a reduced food intake and a calorie deficit.
After weight-loss injections, several physiological changes occur:
- Appetite is reduced by sending signals to appetite centres in the brain, which helps many people feel satisfied after much smaller portions.
- Digestion slows down, which creates a longer feeling of fullness after meals.
- Blood sugar levels become more stable because insulin release increases when glucose levels rise while glucagon levels are reduced.
Together, these effects make it easier to eat fewer calories and lose weight. However, weight-loss injections do not make you lose weight on their own. Your weight loss results will depend on long-term lifestyle changes you make to your diet and exercise routine. NICE guidance highlights that ongoing lifestyle advice and support are important once medication ends to help people maintain weight loss and avoid regaining weight.
Do You Need to Exercise with Weight-Loss Injections?
Yes. Physical activity and exercise are needed whilst taking medically assisted weight loss injections.
When the body loses weight rapidly, some of that loss can come from muscle tissue rather than fat. Maintaining muscle is important because muscle tissue supports metabolism, strength and overall physical function.
Regular exercise helps to protect muscle mass during weight loss. This leads to healthier and better long-term outcomes while taking weight-loss injections.
Exercise also improves:
- cardiovascular health
- insulin sensitivity
- energy levels
- mental wellbeing
For many patients using weight loss injections, walking, cycling, swimming and resistance training are all good starting points.
Do You Need to Diet with Weight-Loss Injections?
Yes, maintaining a healthy, controlled diet is important when using weight loss injections. These medications reduce appetite, which means you may not feel hungry as often. Even so, your body still needs regular, balanced meals to meet its nutritional needs and avoid vitamin deficiencies. Even with smaller portions, meals should still provide adequate protein, fibre, vitamins and healthy fats to support overall health.
Healthy eating also works alongside physical activity to support long-term weight management. Obesity is a major risk factor for conditions such as type 2 diabetes. Therefore, managing weight through diet and lifestyle changes can help lower that risk or improve how the condition is managed.
Developing healthier eating habits during treatment is particularly important because weight loss injections are not used forever. Once the treatment ends, those habits help maintain your desired weight and reduce the likelihood of regaining weight.
Medically Supervised Weight Loss at The Oakley Medical Practice
At The Oakley Medical Practice, we are a private GP clinic based in Sutton Coldfield, Birmingham, offering medically supervised weight management.
Weight loss injections may form part of your treatment plan if you are suitable. However, they are designed to assist weight loss rather than replace healthy habits.
That is why our programmes combine injections with proper nutritional support. We offer the Alevere Nutrition Plan, alongside weight-loss injections, which provides high-protein, low-carbohydrate nutrition, to support the body while your appetite is reduced. This approach helps maintain muscle mass, prevent nutrient deficiencies and keep energy levels stable during weight loss.
Throughout your programme you will have regular reviews with a doctor so we can monitor progress and adjust treatment if needed. If you want to combine weight-loss injections with a diet plan and exercise, book a consultation with the team at The Oakley Medical Practice. We’ll assess your health and create a weight loss plan that works for you.
Call us today: 0121 368 8104


