Weight Medics vs Second Nature | Medical Weight Loss

Jump to: Quick comparison | How each service works | Clinical evidence | Support and coaching | Medication options | Pricing | Who should choose each | Frequently asked questions | Take home message

Weight Medics and Second Nature both offer weight-loss programmes with Mounjaro and Wegovy, but they differ in the type of ongoing support you receive and the clinical evidence behind each programme.

Weight Medics is a CQC-registered medical weight-loss clinic with over 29 years of experience. Their model centres on video consultations with UK clinicians, personalised treatment plans, and medical reviews every four weeks.¹

Second Nature is a specialist weight management provider commissioned by the NHS since 2017.

Our model pairs medication with a structured behaviour change programme delivered by registered dietitians and nutritionists, with published research showing 19.1% average weight loss at 12 months.²

The main difference is in how support is offered alongside the medication. Weight Medics offers doctor-led medical oversight with optional nutritionist consultations. Second Nature offers dietitian-led coaching integrated into a structured programme from day one.

This guide was written by Second Nature, so it naturally reflects our perspective, but we’ve aimed to present Weight Medics’ strengths and limitations as fairly as possible.

Weight Medics vs Second Nature: quick comparison

How each service works

Weight Medics: doctor-led clinic

Weight Medics is a CQC-registered medical weight-loss clinic that has operated for over 29 years.

Their process starts with a 25-minute video consultation with a UK clinician who assesses your suitability for treatment, reviews your medical history, and creates a personalised plan.¹

You receive medical reviews every four weeks to track progress, with unlimited access to clinicians between appointments. Medication is delivered from the next working day after approval.

Their clinical team includes doctors specialising in weight loss, and they offer optional nutritionist consultations as a separate service.

They also provide access to a community area with wellness programmes, recipes, meal plans, and weight-loss tips.¹

Weight Medics also offers tapering and maintenance packages for patients approaching their goal weight, including support for people with a BMI as low as 20.5 on a maintenance programme.¹

Second Nature: programme provider with medication

Second Nature pairs medication with a structured behaviour change programme. You’re assigned a registered dietitian or nutritionist available five days a week through in-app messaging and placed in a small peer support group.

The programme runs across four phases using the COM-B behaviour change model, covering nutrition (using a balanced plate model rather than calorie counting), physical activity, sleep, and the psychological aspects of eating behaviour. Daily educational content is delivered through the app.²

Everything is bundled into a single monthly fee: medication, delivery, coaching, app access, and peer support.

Clinical evidence

Second Nature

Second Nature has published programme-specific outcomes in peer-reviewed journals. Our 2025 study in JMIR Formative Research found²:

• 19.1% average weight loss at 12 months for active subscribers
• 77.7% achieved at least 10% weight loss
• 61.5% achieved at least 15% weight loss
• 69% reported no side effects by month 12

These are completer results, not intent-to-treat. An NHS evaluation in the BMJ also found Second Nature achieved substantially higher weight loss than four other providers in the National Diabetes Prevention Programme.³

Weight Medics

Weight Medics has 29 years of clinical experience, and their Trustpilot reviews include numerous accounts of significant weight loss. Their website states that 98% of patients recommend them to friends and family.¹

However, they haven’t published programme-specific weight-loss outcomes in a peer-reviewed journal. Their website references clinical trial data for the medications they prescribe (such as the SURMOUNT trials for Mounjaro) rather than outcomes from their own programme.

This doesn’t mean their service is ineffective; their 5.0 Trustpilot rating from 300+ reviews and CQC registration both indicate a well-regarded service.

It means there’s no independently published data comparing their specific programme outcomes to medication alone.

Support and coaching

This is the most significant difference between the two providers.

Second Nature

Day-to-day support is provided by HCPC- or AfN-registered dietitians and nutritionists, available five days a week via in-app messaging. Health coaches receive specific training in GLP-1 side effect management. You’re also placed in a small peer support group within the app.²

The programme delivers daily educational content covering nutrition, medication management, physical activity, sleep, and the psychological aspects of eating, including resources for emotional eating and stress.

Weight Medics

Weight Medics’ primary support comes through regular clinician consultations. You receive a medical review every four weeks with a UK clinician via video call, plus unlimited access to their clinical team between reviews.¹

Their team includes an in-house nutritional therapist (qualified at the College of Naturopathic Medicine) and a registered functional nutritionist.

However, nutritionist consultations are booked and paid for separately: £70 for a 30-minute session or £200 for a one-hour functional nutritionist consultation.¹

Their community area provides access to wellness programmes, healthy recipes, meal plans, and expert tips, though the depth and structure of this content aren’t publicly detailed.

The key difference is that Second Nature includes dietitian coaching in every programme as standard, while Weight Medics includes doctor-led medical oversight as standard and offers nutritionist support as an optional extra.

Medication options

Weight Medics offers a wider range of medications. In addition to GLP-1 injections, they prescribe Phentermine and Diethylpropion (appetite suppressant tablets available in 4 or 12-week courses) and Orlistat (a fat-absorption blocker). This gives more options if GLP-1 injections aren’t suitable for you.¹

Both providers offer the Wegovy 7.2 mg dose approved by the MHRA in January 2026.⁴

Weight Medics also offers explicit tapering and maintenance packages designed for patients approaching their target weight who want to gradually reduce their dose rather than stop abruptly.

Pricing

Pricing changes, so check each provider’s website for the most current figures. As a general guide at the time of writing:

Weight Medics

Weight Medics charges per medication package. Prices include medication, consultation, medical assessment, unlimited clinician access, community area access, and delivery¹:

• Mounjaro: £189 (2.5mg) to £339 (15 mg) per month
• Wegovy: £149 (0.25 mg) to £279 (2.4 mg) per month; £650 for 7.2 mg
• Phentermine/Diethylpropion: £110 for 4 weeks, £330 for 12 weeks (plus £11.95 delivery)
• Orlistat: £45 for 84 tablets
• Nutritionist add-on: £70 (30 min) or £200 (1 hour)

Weight Medics also offers a refer-a-friend discount of £30 off your next dose for both you and the friend.

Second Nature

Second Nature charges an all-inclusive monthly fee covering medication, delivery, dietitian coaching, app access, and peer support:

• Wegovy programme: £149-£249 per month depending on dose
• Mounjaro programme: pricing available on the Second Nature website
• Non-medication programme: from £33/month

At the lower doses, pricing is comparable. At higher maintenance doses, the total cost depends on whether you add nutritionist consultations to Weight Medics’ package.

Second Nature’s price always includes dietitian coaching; Weight Medics’ base price includes doctor consultations but charges separately for nutritionist support.

Who should choose each option

Weight Medics may suit you if:

• You want regular video consultations with a doctor rather than text-based coaching
• You value CQC registration and 29 years of medical weight-loss experience
• You want access to a wider range of medications (including Phentermine tablets)
• You’re looking for a tapering or maintenance programme after reaching your goal weight
• You prefer to book nutritionist support as and when you need it rather than as part of an ongoing programme

Second Nature may suit you if:

• You want dietitian-led coaching included from day one, not as an optional extra
• Published, peer-reviewed clinical outcomes are important to you
• You want a structured behaviour change programme (not just medical oversight)
• You value in-app peer support from others at a similar stage
• You want a provider with current NHS weight management partnerships

Frequently asked questions

Is Weight Medics or Second Nature more effective for weight loss?

Second Nature has published peer-reviewed research showing 19.1% average weight loss at 12 months with semaglutide and dietitian-led support.²

Weight Medics has not published comparable programme-specific data, though their 5.0 Trustpilot rating and long track record suggest patients are getting good results. Both providers prescribe the same core medications.

Does Weight Medics offer dietitian or nutritionist support?

Weight Medics has nutritionists on their team, but consultations are booked and paid for separately (£70 for 30 minutes, £200 for a 1-hour functional nutritionist session).¹ This support is not included in the standard medication package.

Second Nature includes a registered dietitian or nutritionist coaching as part of every programme at no extra cost.

Is Weight Medics a proper clinic?

Yes. Weight Medics is registered with the Care Quality Commission (CQC), which is the independent regulator of health and social care in England. They’ve operated for over 29 years, and their clinical team includes doctors specialising in weight loss.¹

Can I get Wegovy 7.2 mg from both providers?

Yes. Both offer the 7.2 mg dose, approved by the MHRA in January 2026.⁴ Weight Medics prices the 7.2mg dose at £650 per month (3 × 2.4mg pens).

Does Weight Medics offer Phentermine?

Yes. Weight Medics prescribes Phentermine and Diethylpropion (appetite suppressant tablets) as alternatives to GLP-1 injections.

These are available in 4 or 12-week courses and may suit people who prefer tablets or can’t take GLP-1 medications.¹ Second Nature does not offer appetite suppressant tablets.

What happens when I want to stop taking medication?

Weight Medics offers explicit tapering and maintenance packages for patients approaching their goal weight, with support for BMIs as low as 20.5.¹

Second Nature builds transition support into its programme, with your dietitian guiding you through the process.

Research shows that around two-thirds of people regain weight within a year of stopping semaglutide without ongoing support.⁵

Which provider has better reviews?

Weight Medics has a 4.8/5 Trustpilot rating from over 300 reviews. Second Nature has a 4.5/5 rating from over 7,800 reviews.

Does either provider work with the NHS?

Second Nature has been commissioned by the NHS since 2017, currently across 43 ICBs and Health Boards for weight management and type 2 diabetes prevention.³ Weight Medics is a private service and does not have NHS partnerships.

Is Weight Medics cheaper than Second Nature?

At the starting doses, pricing is similar. At higher maintenance doses, it depends on whether you add nutritionist support to Weight Medics’ package. Second Nature’s price always includes dietitian coaching.

Weight Medics’ base price includes doctor consultations but charges £70-£200 per nutritionist session separately. Check both websites for current pricing at your dose.

Can I switch from Weight Medics to Second Nature (or vice versa)?

Yes. You can switch providers, though you’ll need a new clinical assessment. If you’re already on a stable dose, you won’t necessarily need to restart from the lowest dose. Both providers can advise on the safest way to transition.

Take home message

Weight Medics and Second Nature both offer regulated, doctor-involved weight-loss services with Mounjaro and Wegovy. The difference is in what you get alongside the medication.

Weight Medics provides a doctor-led model with regular video consultations, 29 years of clinical experience, CQC registration, a wider range of medication options (including Phentermine tablets), and explicit tapering and maintenance packages. Nutritionist support is available as an optional extra.¹

Second Nature provides a dietitian-led model where coaching is integrated into every programme from day one, alongside a structured behaviour change programme, peer support groups, and published clinical outcomes showing 19.1% average weight loss at 12 months.²

If regular face-to-face contact with a doctor is your priority, Weight Medics’ video consultation model may suit you better. If you want ongoing dietitian coaching and a structured programme focused on building lasting habits alongside medication, Second Nature is designed for that.

References

1. Weight Medics. Weight Loss Injection Packages.
2. Richards, R., et al. (2025). A Remotely Delivered, Semaglutide-Supported Weight Management Program: 12-Month Outcomes. JMIR Formative Research, 9(1), e72577.
3. Ross, J.A.D., et al. (2022). Uptake and impact of the English National Health Service digital diabetes prevention programme. BMJ Open Diabetes Research & Care, 10(3), e002736.
4. Medicines and Healthcare products Regulatory Agency. (2026). Medicines regulator approves up to 7.2mg dose of semaglutide (Wegovy) for patients with obesity only.
5. Wilding, J.P.H., et al. (2022). Weight regain and cardiometabolic effects after withdrawal of semaglutide. Diabetes, Obesity and Metabolism, 24(8), 1553-1564.