Jump to: NHS Partnership & Clinical Evidence | Programme Comparison | Support & Coaching | Pricing & Value | Frequently Asked Questions | Take Home Message
When choosing between London Slimming Clinic and Second Nature for weight-loss medication support, the most significant difference is programme depth and clinical expertise.
Research shows that without proper habit change support, the majority of weight lost on GLP-1 medications returns within a year of stopping treatment.
Second Nature has been delivering NHS-commissioned weight-loss services since 2017, combining medication with daily access to registered dietitians and nutritionists.
Recent studies show that Second Nature achieves more than double the weight loss outcomes of competitor programmes in NHS-linked services.
London Slimming Clinic has evolved beyond just medication provision, now offering bespoke weight loss programmes with GMC-registered doctor consultations, WhatsApp community support, and a behaviour change toolkit.
However, their approach still lacks the daily dietitian access and comprehensive digital support that research shows is crucial for long-term success.
Both services provide access to effective weight-loss medications, but Second Nature’s approach offers greater peace of mind for those seeking clinically-proven support for sustainable weight loss.
Second Nature also offers a weight-loss programme without medication starting from £33/month, which you can learn more about here.
London Slimming Clinic vs Second Nature: Key Programme Differences
| Feature |
Second Nature |
London Slimming Clinic |
| NHS Partnership |
NHS-commissioned since 2017, now providing Tier 3 weight management services across multiple UK regions |
No NHS partnerships; CQC and GPhC registered |
| Clinical Evidence |
Multiple peer-reviewed publications; most recent study showing weight loss of 19.1% after one year on Wegovy |
Relies on drug trial data only; no published research on their programme outcomes |
| Health Support |
UK-registered dietitians and nutritionists available 5 days a week with GLP-1 expertise + psychological resources for emotional eating |
GMC-registered doctor consultations; personal health coach; WhatsApp community |
| Medication Options |
Mounjaro, Wegovy |
Wegovy, Mounjaro, Saxenda |
| Digital Tools |
Custom-built app with food/mood tracking, 300+ recipes, habit tracking, and daily articles |
Behaviour change toolkit; limited digital integration |
| Monthly Cost |
£33/month for non-medication programme; Wegovy programme £149-£249 per month with £50 off the first month |
Wegovy: £179-£309; Mounjaro: £189-£255 |
| Post-medication Planning |
Comprehensive transition strategies and ongoing support |
Not specifically mentioned |
| User Satisfaction |
4.6/5 from 7,600+ Trustpilot reviews |
4.2/5 from 77 Trustpilot reviews (their page also shows they don’t respond to negative reviews) |
NHS partnership & clinical evidence
The foundation of any effective weight management programme lies in its clinical validation and evidence base. This becomes especially important when medication is involved.
Second Nature: NHS-trusted approach
At Second Nature, we’ve built our reputation on a strong foundation of clinical trust and evidence since our inception.
Since 2017, the NHS has commissioned us to deliver weight loss and type 2 diabetes programmes across the UK. As of April 2025, our NHS partnerships have expanded to include Tier 3 weight management services in new regions with updated eligibility criteria.
This partnership with the NHS reflects the confidence healthcare professionals place in our approach, which is grounded in behaviour change psychology and sustainable habit formation.
The effectiveness of our approach is supported by peer-reviewed research published in the British Medical Journal:
- Our members lose an average of 5.9kg at 12 weeks
- 62.5% achieved at least 5% weight loss by 3 months
- 40% of type 2 diabetes patients reduced HbA1c below diagnostic thresholds
More recently, we published research on our Wegovy-supported programme in JMIR Formative Research, showing that participants lost an average of 19.1% of body weight after 12 months.
London Slimming Clinic: Regulated medical service
London Slimming Clinic operates as a GPhC-licensed pharmacy and CQC-registered service, offering certified medications through GMC-registered healthcare professionals.
Their clinical approach centres on doctor-led consultations and prescribing expertise, with all providers adhering to appropriate regulatory standards.
However, while they reference the clinical trial data for medications like Wegovy and Mounjaro, they don’t publish programme-specific research examining the effectiveness of their particular approach to weight management.
This means there’s no independently verified data on how their specific combination of services affects long-term weight maintenance, especially after medication is discontinued.
Key points:
- Second Nature’s NHS partnerships now include expanded Tier 3 weight management services
- Recent research shows Second Nature achieves more than double the weight loss results of competitor programmes
- London Slimming Clinic is properly regulated but lacks programme-specific research
Support & coaching
When taking weight-loss medications like Mounjaro or Wegovy, having the right support transforms your experience, helping you navigate side effects, adjust your eating patterns, and maintain motivation through challenges.
Second Nature: Comprehensive support system
At Second Nature, we provide access to UK-registered dietitians and nutritionists who specialise in supporting members on weight-loss injections.
These qualified professionals are available five days a week via both group and private chat as part of your standard programme cost.
Our health coaches receive specific training in side effect management, ensuring you receive personalised guidance through the physical and emotional challenges that sometimes arise during medication treatment.
We place you in a small group with others on similar journeys, creating a supportive community where you can share experiences and strategies.
We support improved mental health and behaviour change through:
- In-app psychological resources specifically for emotional eating
- Tips to develop a better relationship with stress
- Habit tracking and behaviour change tools
- Tools to help get back on track after slip ups
Our programme is explicitly designed with post-medication life in mind:
- Focus on sustainable habit formation from your very first day
- Personalised transition plans for maintaining results after medication
- Ongoing access to support resources even after completing the programme
- Community support from others at similar stages
London Slimming Clinic: Medical support with coaching elements
London Slimming Clinic has expanded their support offerings to include:
- GMC-registered doctor consultations for medical oversight
- Personal health coach access
- WhatsApp community for peer support
- Behaviour change toolkit for developing healthy habits
- Money-back guarantee on their services
While these additions represent a significant improvement over a medication-only approach, their support model is still primarily consultation-based rather than providing the daily access to nutrition specialists that research shows is valuable for long-term success.
The WhatsApp community offers peer support, but it’s not clear whether this includes professional moderation or structured educational content like Second Nature’s group approach.
Key points:
- Second Nature provides daily access to dietitians/nutritionists specialising in GLP-1 medications
- Enhanced psychological resources address emotional eating and stress management
- London Slimming Clinic now offers personal health coaching and WhatsApp community
- Second Nature’s approach features more comprehensive digital tools and structured support
Pricing & value
Understanding the full financial commitment helps you make an informed decision that aligns with both your health goals and financial circumstances.
Comprehensive pricing overview
Second Nature options:
- Without medication: From £33/month for a 12-month subscription (or £38/month for shorter terms)
- With Wegovy: £149-£249 monthly with £50 off the first month
- With Mounjaro: New prices to be confirmed in October
- Minimum commitment: £9.99 (14-day trial) for non-medication programme
London Slimming Clinic pricing:
- Wegovy: £179 for starter dose (0.25mg), rising to £309 for maintenance dose (2.4mg)
- Mounjaro (prices likely to rise): £189 for starter doses (2.5mg, 5mg), £239 for mid-range doses (7.5mg, 10mg), £255 for highest doses (12.5mg, 15mg)
- Includes free online consultation and prescription approval
At first glance, London Slimming Clinic’s starter dose pricing appears slightly more competitive for medication-only services.
However, the value proposition differs significantly when considering the comprehensive support included with Second Nature.
At Second Nature, our monthly fee includes:
- Medication costs and delivery
- Daily access to registered dietitians and nutritionists
- Full access to our app with 300+ recipes
- Psychological resources for emotional eating and stress management
- Placement in peer support groups
- Post-medication transition planning
London Slimming Clinic’s offering includes:
- Medication costs and delivery
- Doctor consultations
- Personal health coach
- WhatsApp community access
- Behaviour change toolkit
Key points:
- Second Nature offers a non-medication option from £33/month
- London Slimming Clinic’s initial medication prices are slightly lower for starter doses
- When comparing maintenance doses and higher strengths, pricing becomes very similar
- The value proposition depends on what type of support you find most beneficial
Frequently asked questions
What’s the difference between London Slimming Clinic’s health coach and Second Nature’s dietitians?
London Slimming Clinic offers personal health coaching, but doesn’t specify the qualifications or availability of these coaches.
Second Nature provides access to UK-registered dietitians and nutritionists who are available five days a week.
Dietitians and nutritionists have formal clinical training in nutrition science and need a bachelor’s degree to obtain registration, whereas health coach qualifications can vary widely.
Will I regain weight after stopping Mounjaro or Wegovy?
Without proper support, research shows people regain approximately 68% of lost weight within a year of stopping GLP-1 medications.
However, with comprehensive habit change support like Second Nature’s programme, this regain can be significantly reduced. The habits you develop while on medication are the key determinant of long-term success.
Can I try Second Nature without medication first?
Yes, Second Nature offers a non-medication weight loss programme starting from £33/month for a 12-month subscription.
Many members achieve significant results without medication, and this can be a good option if you’re not yet eligible for GLP-1 medications or prefer to try lifestyle changes first.
You can always transition to the medication-supported programme later if needed.
How do I know which provider is right for me?
Consider what type of support you’ll find most valuable. Choose London Slimming Clinic if you prefer doctor-led consultations and a medical approach with some coaching elements.
Choose Second Nature if you want daily access to nutrition specialists, a comprehensive digital app, peer support groups, and a programme with NHS backing and published research outcomes.
Take home message
Weight-loss medications like Mounjaro and Wegovy can be beneficial when paired with the right support programme.
They help silence food-related thoughts and provide the mental space to develop sustainable habits for long-term success.
When choosing between London Slimming Clinic and Second Nature, consider these key differences:
- Clinical credibility: Second Nature has seven years of NHS partnership and published research showing double the weight loss results of competitor programmes
- Support: Second Nature offers daily access to dietitians and enhanced psychological resources, while London Slimming Clinic provides doctor consultations and health coaching
- Digital integration: Second Nature features a comprehensive app with tracking tools, recipes, and resources, while London Slimming Clinic offers a behaviour change toolkit and WhatsApp community
- Programme flexibility: Second Nature offers both medication and non-medication options starting from £33/month
- User satisfaction: Second Nature maintains a 4.6/5 Trustpilot rating across 7,600+ reviews compared to London Slimming Clinic’s 4.2/5 from 77 reviews
The ultimate goal isn’t just losing weight in the short term; it’s making healthy habits feel second nature, becoming part of who you are rather than something you do for a limited time.
Ready to start your journey with the UK’s most trusted medication-supported weight loss programme?
Take the eligibility quiz now →
Second Nature's Mounjaro and Wegovy programmes
Second Nature provides Mounjaro or Wegovy as part of our Mounjaro and Wegovy weight-loss programmes.
Why choose Second Nature over other medication providers, assuming you're eligible?
Because peace of mind matters.
We've had the privilege of working with the NHS for over eight years, helping people across the UK take meaningful steps toward a healthier, happier life.
Our programmes are designed to meet people where they are, whether that means support with weight loss through compassionate one-to-one health coaching, or access to the latest weight-loss medications (like Mounjaro and Wegovy) delivered alongside expert care from a multidisciplinary team of doctors, psychologists, dietitians, and personal trainers.
At the heart of everything we do is a simple belief: real, lasting change comes from building better habits, not relying on quick fixes. We're here to support that change every step of the way.
With over a decade of experience, thousands of lives changed, and a long-standing record of delivering programmes used by the NHS, we believe we're the UK's most trusted weight-loss programme.
We hope to offer you something invaluable: peace of mind, and the support you need to take that first step.
