This article is accurate to the best of our knowledge as of June 2026.
When choosing between Second Nature and Bolt Pharmacy for medication-supported weight loss, the most important difference is whether you want medication alone or medication combined with support to prevent weight regain in the future.
At Second Nature, we’ve been delivering NHS-commissioned weight-loss services since 2017, combining medication with habit-change support from registered dietitians and nutritionists.
Bolt Pharmacy positions itself as a transparent, low-cost medication provider, offering GLP-1 injections at competitive ‘no markup’ prices with clinical oversight and written guides, but no structured behaviour-change programme.
Both services provide access to the same GLP-1 weight-loss medications, but they represent fundamentally different approaches to weight loss and maintenance.
The most significant differences between these programmes are:
Core approach: At Second Nature, we build sustainable habits through behavioural psychology alongside medication, while Bolt Pharmacy focuses on affordable medication access with self-managed weight loss
Clinical support: We provide registered dietitians and nutritionists five days a week, while Bolt offers clinician check-ins and written guides
NHS partnership: We’ve been delivering NHS-commissioned services since 2017 with peer-reviewed outcomes, while Bolt operates as a private GPhC-registered pharmacy
Long-term planning: We focus on sustainable habit formation for life after medication to prevent weight regain, while Bolt’s approach centres on medication provision
This guide will help you understand which approach aligns better with your health goals, preferences, and budget.
Important safety information: Mounjaro (tirzepatide) and Wegovy (semaglutide) are prescription-only medications for managing obesity. This article is for informational purposes only. Always consult with your healthcare provider before starting any new medication.
Lose weight your way and keep it off
GLP-1 medication, expert support, and a programme that fits your life
Second Nature vs Bolt Pharmacy: At-a-glance comparison
NHS-commissioned since 2017, used by over half of the UK NHS Health Boards
GPhC-registered pharmacy (No. 9012625), no NHS programmes
Clinical evidence
Peer-reviewed JMIR study showing an average weight loss of 19.1% at 12 months
References medication trial data (no service-specific outcomes published)
Health support
UK-registered dietitians and nutritionists five days a week
Clinician check-ins and written guides; no registered dietitians or nutritionists
Medication options
Mounjaro, Wegovy (including Wegovy 7.2 mg)
Mounjaro, Wegovy (including Wegovy 7.2 mg)
Digital tools
Custom-built app with tracking, 300+ recipes, and education
App and website check-ins, informational guides
Weight loss claims
An average of 19.1% at 12 months (JMIR study); 77.7% achieved ≥10% weight loss
References medication trial data (Mounjaro 22.5%; Wegovy 7.2 mg 20.7%)
Monthly cost
From £99/month, depending on medication and dose
Mounjaro from £149/month; Wegovy from £99/month, depending on dose
Post-medication planning
Comprehensive transition planning and ongoing support
Self-managed approach
User satisfaction
4.5/5 from 7,900+ Trustpilot reviews
4.5/5 from 3,600+ Trustpilot reviews
Core approach differences
Second Nature: Habit change alongside medication
At Second Nature, we view medication as one part of a comprehensive approach to weight management.
We recommend staying on the lowest effective dose for as long as possible to promote sustainable weight loss that you’re more likely to maintain in the long term, without losing excess muscle mass.
Our programme is built on behavioural science developed through years of NHS collaboration.
We help you understand the interplay between biology, psychology, and environment that influences eating patterns and weight.
Research shows that people who stop GLP-1 medications suddenly, without developing sustainable habits, typically regain around two-thirds of their lost weight within a year.1
Our approach addresses this by building habits from day 1, so you’re prepared for life after medication, or if you continue at a lower maintenance dose.
Bolt Pharmacy: Affordable medication access
Bolt Pharmacy operates with a clear mission: making prescription weight-loss treatments accessible at transparent, competitive prices.
Their ‘no markup’ pricing model shows exactly how they calculate costs, breaking down the manufacturer price, medical professional fees, running costs, shipping, and profit margin.
This approach works well for people who already understand nutrition and behaviour change, or who have external support systems in place.
Bolt emphasises that they believe ‘life-changing medications should be accessible to everyone, and no one should be priced out of the care they need.’
Clinical credibility & NHS partnership
Second Nature: NHS-trusted approach
Since 2017, the NHS has commissioned us to deliver weight loss and type 2 diabetes programmes across the UK, with over half of UK NHS Health Boards now using our services.
This partnership reflects the confidence healthcare professionals place in our behaviour-change approach.
Our effectiveness is supported by peer-reviewed research. Our 2025 study, published in JMIR Formative Research, examined 12-month outcomes for people on a semaglutide-supported programme combined with behavioural support:
An average weight loss of 19.1% for participants who maintained an active subscription
77.7% achieved ≥10% weight loss at 12 months
61.5% achieved ≥15% weight loss at 12 months
69% reported no side effects by month 12 with proper support2
Bolt Pharmacy: Regulated medication provider
Bolt Pharmacy is a GPhC-registered pharmacy (registration number 9012625), so all medications are legitimate and properly dispensed.
Their clinicians are UK-registered prescribers who conduct medical assessments before approving treatment, and the prescribing service is registered with the Care Quality Commission.
For weight-loss outcomes, Bolt cites clinical trial data for the medications it supplies rather than programme-specific evidence.
They cite Mounjaro’s average weight loss of 22.5% and Wegovy 7.2 mg’s 20.7% in clinical trials.
While Bolt publishes informational guides on topics such as managing side effects and comparing GLP-1 medications, there’s no published research examining outcomes specific to its service.
Programme structure & philosophy
Second Nature: Building sustainable habits alongside medication
Our programme recognises that lasting weight loss requires more than medication alone.
Rather than focusing solely on the effect of the medication, we help you understand why you eat the way you do and how to build habits that support your health in the long term.
Our approach includes:
Building sustainable habits that work with your unique body and lifestyle
A non-restrictive nutrition philosophy that doesn’t require calorie counting
Structured educational content based on clinical evidence
An intuitive app with food journals, 300+ recipes, and progress tracking
Supportive peer groups with others on similar journeys
Specific protocols for managing side effects and transitioning off medication
We view medication as a tool that creates a window of opportunity to develop habits while appetite is reduced and food noise is quieter.
Bolt Pharmacy: Streamlined medication access
Bolt Pharmacy offers a straightforward process:
Complete an online consultation form
Clinicians review and approve if suitable
Medication dispatched with cold-chain delivery, often next day
Monthly check-ins via their app and website
Access to written guides on nutrition and side-effect management
A 5% weight-loss guarantee within 6 months or your money back
Their approach is designed for people who want efficient access to medication without an extensive programme structure.
Bolt has expanded its app and website to include check-in functionality, weight tracking, and written guidance on nutrition and exercise. This is helpful self-directed content, but it’s different from a structured behaviour-change programme delivered by registered professionals.
Support & coaching
Second Nature: Professional guidance and peer support
We provide access to UK-registered dietitians and nutritionists who specialise in supporting people on weight-loss medications.
These qualified professionals are available five days a week via both group and private chat as part of your standard programme cost.
You also get a free onboarding call with your coach to help you settle into the programme and set your goals.
Our health coaches receive specific training in GLP-1 medication management, helping you navigate:
Side effects like nausea, constipation, and fatigue
Adjusting eating patterns as appetite changes
Building protein-rich meals to maintain muscle mass
Managing hunger when medication effects fluctuate
Preparing for eventually stopping medication
We place you in a small group with others on similar journeys, creating a supportive community where you can share experiences and strategies.
Bolt Pharmacy: Clinical support and self-directed guides
Bolt Pharmacy provides:
Online consultation with UK-registered clinicians
Monthly check-ins via their app and website
Written guides on nutrition and side-effect management
Responsive customer service via WhatsApp and email
Clinician messaging for medication-related queries
Customer reviews frequently praise Bolt’s responsive communication and customer service.
Their support focuses on medication management and self-directed content rather than one-to-one lifestyle coaching.
There are no registered dietitians, nutritionists, or peer support groups.
This approach relies on self-management and works well for people who are confident in making their own dietary and lifestyle changes.
Pricing & accessibility
Comprehensive pricing overview
Prices for weight-loss medications change frequently, so it’s worth checking each provider’s website for the current figures before you commit.
Second Nature:
Wegovy programmes from £99/month
Mounjaro programmes from £179/month
Subsequent months vary by dose
All-inclusive: medication, delivery, app access, dietitian support, and peer groups
Bolt Pharmacy:
Mounjaro from £149/month, rising with dose
Wegovy from £99/month, rising with dose
A first-month promotional discount, with a small saving for monthly subscribers
Financial assistance available for people receiving certain benefits
Medication, delivery, and clinical oversight, with self-directed guides
Value comparison
Bolt Pharmacy’s per-dose medication pricing is lower, but the two services include different features.
Second Nature includes:
Medication costs and delivery
Full access to the app with 300+ recipes
Support from registered dietitians and nutritionists
Placement in peer support groups
Educational content and habit-forming tools
Post-medication transition planning
Bolt Pharmacy includes:
Medication at transparent ‘no markup’ pricing
Cold-chain overnight delivery
Clinical oversight and monthly check-ins
Written guides and informational resources
A 5% weight-loss guarantee or your money back
For people who primarily need affordable access to medication and are confident managing their own lifestyle changes, Bolt offers genuine value.
For those wanting comprehensive support to build lasting habits, Second Nature’s all-inclusive pricing may represent better long-term value.
Thinking about which approach fits you? Second Nature has worked with the NHS since 2017, combining medication with structured habit support to prevent future weight regain. Take our 3-minute eligibility quiz, and a clinician will review your answers.
Long-term outcomes
Second Nature: Building for lasting results
Our approach focuses on what happens after medication, not just during treatment.
Our 2025 JMIR study showed strong 12-month outcomes for people on our behaviour-change programme alongside medication:
An average weight loss of 19.1% at 12 months
77.7% achieved clinically significant weight loss (≥10%)
61.5% achieved ≥15% weight loss
If you stop a weight-loss injection suddenly without having built the habits needed to maintain your new weight, some weight regain is likely.
We recommend coming off the medication slowly by gradually reducing the dose, and making sure you have habits in place to manage hunger naturally.
Bolt Pharmacy: Medication-focused outcomes
Bolt Pharmacy emphasises:
Transparent pricing that can make longer treatment periods more affordable
Clinical trial outcomes for the medications (Mounjaro 22.5%; Wegovy 7.2 mg 20.7%)
A 5% weight-loss guarantee within 6 months
Customer reviews praising service efficiency and value
Their outcomes primarily reflect how well the medication works.
What happens after stopping depends largely on whether someone has built habits to maintain their weight, which is left to self-management.
Bolt’s customer reviews are largely positive, with consistent praise for competitive pricing, fast delivery, and responsive customer service.
Their 4.5/5 Trustpilot rating, based on 2,100+ reviews, reflects customer satisfaction with the medication-provision model.
Frequently asked questions
Is Bolt Pharmacy legitimate?
Yes. Bolt Pharmacy is GPhC-registered (number 9012625) and uses UK-registered prescribers, with prescribing services registered with the Care Quality Commission. It’s a legitimate online pharmacy with transparent pricing and positive customer reviews.
Which is cheaper: Second Nature or Bolt Pharmacy?
Bolt Pharmacy’s per-dose medication pricing is generally lower.
However, Second Nature’s cost includes registered dietitians, an app, peer groups, and post-medication planning. The better value depends on whether you want that support.
Does Bolt Pharmacy offer Wegovy?
Yes. Bolt Pharmacy offers both Wegovy and Mounjaro, including the 7.2 mg dose of Wegovy. Second Nature also offers both medications, including Wegovy 7.2 mg.
What support does Bolt Pharmacy provide?
Bolt provides clinical consultations, monthly check-ins via its app and website, written guides, and responsive customer service. It doesn’t offer registered dietitians, nutritionists, or peer support groups.
How do I maintain weight loss after stopping medication?
Research shows that developing sustainable habits while on medication is key to maintaining results.
If you stop suddenly without those habits in place, around two-thirds of the weight is typically regained within a year.
Second Nature’s programme is built around sustainable weight loss to prevent weight regain in the future; Bolt Pharmacy’s approach relies on self-management.
Does Bolt Pharmacy have a money-back guarantee?
Yes. Bolt offers a full refund if you don’t achieve at least a 5% body weight reduction within 6 months of following their plan.
Can I get Mounjaro or Wegovy on the NHS instead?
Some people are eligible for weight-loss medication through the NHS, but access is limited, and waiting lists can be long.
Both Second Nature and Bolt provide private routes if you’re eligible and don’t want to wait. Always check your eligibility with a healthcare professional.
Are Mounjaro and Wegovy the same at both providers?
Yes. The medications are identical regardless of provider, because both are dispensed from the same manufacturers.
The difference is the support and programme wrapped around the medication, not the medication itself.
Take home message
Weight-loss medications like Mounjaro and Wegovy can support significant weight loss when used appropriately.
The key question is whether you want medication alone or medication combined with comprehensive support for lasting change.
Your choice between Second Nature and Bolt Pharmacy should reflect your personal health philosophy, support preferences, and budget.
Bolt Pharmacy offers a transparent, well-reviewed, and affordable route to the same medications, with clinical oversight and self-directed guides.
If you’re confident managing your own diet and lifestyle, and mainly want reliable, low-cost access to medication, it’s a sensible option.
Second Nature offers the same medications alongside a structured behaviour-change programme, with registered dietitians and nutritionists available five days a week, peer support, and a plan for coming off medication.
The research suggests you’re more likely to avoid weight regain when medication is combined with structured habit-change support than when it’s prescribed on its own.
If you’ve struggled with weight regain after previous attempts, that difference is the main reason to consider a supported programme rather than medication alone.
Lose weight your way and keep it off
GLP-1 medication, expert support, and a programme that fits your life
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.
