Overview
Weight regulation is driven by hormones that control appetite and satiety, not willpower alone. When weight is lost, the body increases hunger signals and reduces energy expenditure, which is why regain is so common after diet-only approaches.
Modern treatments target these hormonal pathways. GLP-1 receptor agonists mimic natural satiety hormones, reducing appetite and food preoccupation, and also improve blood sugar and cardiovascular risk markers.
When to seek urgent medical help
- • Unintentional weight loss, which needs investigation rather than treatment
- • Personal or family history of medullary thyroid cancer or pancreatitis before GLP-1 treatment
- • Active eating disorder, pregnancy or breastfeeding
Symptoms and signs
- BMI of 30 or above, or 27 and above with a weight-related condition
- Persistent hunger, cravings or constant thoughts about food
- Weight regain after previous successful dieting
- Prediabetes, type 2 diabetes, high blood pressure or high cholesterol
- Joint pain, breathlessness or sleep apnoea related to weight
- Binge eating or evening grazing patterns
Management and treatment
Effective treatment pairs medication with protein-focused nutrition, resistance exercise to preserve muscle and behavioural strategies for triggers. Medication is a tool that makes these changes achievable, not a replacement for them.
Your ChatDoc doctor confirms eligibility, screens for contraindications, sets a safe titration schedule and monitoring plan, and issues the prescription with clear dose escalation instructions.
Prescription treatment options
GLP-1 receptor agonists
Weekly injectable treatment that reduces appetite and food noise, with substantial average weight loss when combined with lifestyle change.
Orlistat
Oral capsule taken with meals that reduces fat absorption, an option when injectables are unsuitable.
Structured nutrition plan
Protein targets, meal timing and hydration guidance to protect muscle and limit side effects.
Behavioural and monitoring support
Trigger identification, activity targets and review of blood pressure, glucose and weight trends.
Any prescription is issued only after a doctor has reviewed your case and considers the treatment safe and appropriate for you.
Your online Weight Loss assessment
- 1
Tell us about your concern
Share symptoms, past treatments, medicines and relevant health information.
- 2
Upload clear photos
Upload photos of your concern where applicable.
- 3
Doctor reviews your case
Technology helps organise your answers, but every assessment and prescription decision is made by a doctor, who may message you if they need more information.
- 4
Get your personalised plan
A personalised prescription is issued if treatment is clinically appropriate.
Prognosis and outlook
A safe and realistic rate is 0.5-1kg per week. Even a 5-10% weight reduction substantially improves blood pressure, prediabetes, sleep apnoea and joint pain.
Weight regain is common if medication is stopped abruptly without established habits, so treatment plans include a maintenance phase.
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This page is general medical information and does not replace a personal consultation. Always seek urgent care for severe or rapidly worsening symptoms. ChatDoc is not an emergency service. Call 999 (UK) or 112 (EU) for life-threatening emergencies or 111 for urgent non-emergency help. Do not wait for an online reply.