Medical Weight Loss in London: What to Expect Before Starting Treatment
Medical weight loss is a clinically supervised approach that considers your health, individual goals and lifestyle, not simply medication.
In this guide, we explain what to expect from the initial assessment, blood testing, treatment, lifestyle support and ongoing clinical monitoring provided by Harley Street Medical.
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What Is a Medical Weight Loss Programme?
A medical weight loss programme is a clinically supervised approach designed around your health, weight-loss goals and individual needs. It begins with an assessment of your medical history, current medication, lifestyle and overall health to determine whether treatment is safe and suitable for you.
Depending on your assessment, the programme may include prescription weight-loss medication, blood tests, nutrition and lifestyle guidance, and regular clinical reviews.
Your Initial Consultation and Eligibility Assessment
Before starting treatment, you will complete an online assessment and have an initial consultation with a healthcare professional. They will review your medical history, current medication and any health conditions that may affect your suitability for treatment. Your height, weight and body mass index (BMI) will also be considered.
This assessment helps the clinical team understand your individual needs, identify potential risks and determine whether treatment is appropriate for you. If treatment is suitable for you, the clinical team will discuss the available options and explain what to expect from the programme.
The first step takes about five minutes to complete.
Complete the Online Weight Loss AssessmentWhy Is a Blood Test Required Before Treatment?
Before starting treatment with Harley Street Medical, you will be required to have a blood test. This provides the clinical team with important information about your overall health and helps identify any underlying concerns that may affect which treatment is safe and suitable for you.
Your results will be reviewed alongside your medical history, current medication and initial assessment. Follow-up blood tests will also be required during the programme to support ongoing clinical monitoring.
What Treatment Options Are Available?
If treatment is suitable for you, the clinical team will recommend an option based on your medical history, current medication, blood-test results and individual needs. Prescription treatments may include injectable or tablet options, depending on your clinical suitability.
Your clinician will explain how the recommended treatment works, how to use it correctly and any possible side effects. Medication is only prescribed following a clinical assessment and should be used alongside appropriate nutrition, physical activity and lifestyle support.
Nutrition and Lifestyle Support
Weight-loss medication should be used alongside appropriate changes to your diet, physical activity and everyday habits. As part of your programme, you will receive guidance to help you make realistic changes that suit your needs, preferences and lifestyle.
This may include support with food choices, portion sizes, physical activity, sleep and other habits that can influence weight management. The aim is to develop healthier routines that can support your progress throughout treatment and beyond.
Ongoing Reviews and Safety Monitoring
Regular reviews are an important part of your medical weight loss programme. During these appointments, the clinical team will assess your progress, discuss any side effects or concerns and review how you are responding to treatment. Your medication may be continued or adjusted only when clinically appropriate.
You will also be asked to complete a follow-up blood test every three months. This is a smaller blood panel than your initial test and helps the clinical team monitor how your body is responding to treatment and identify any changes that may require further attention.
These reviews give you an opportunity to ask questions, discuss any challenges and receive ongoing guidance as your needs and progress change.
Frequently Asked Questions
Is Weight-Loss Medication Suitable for Everyone?
No. Your suitability will depend on factors such as your medical history, current medication, BMI and overall health. Treatment will only be prescribed following a clinical assessment.
How Often Will My Progress Be Reviewed?
Your progress will be reviewed regularly throughout the programme. You will also be asked to complete a smaller follow-up blood test every three months to help monitor how your body is responding to treatment.
What If I Have Questions Between My Reviews?
You can contact the Harley Street Medical team between 7am and 9pm daily if you have questions or concerns during your programme.
Start Your Medical Weight Loss Journey
If you are considering medical weight-loss treatment, the first step is to complete our online assessment. The Harley Street Medical clinical team will review your information, discuss your individual needs and determine whether treatment may be suitable for you.
Prescription treatment is subject to clinical assessment and is not suitable for everyone. Individual results may vary.


