Bolt Guides

Expert insights on weight loss and more.

Featured

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

GLP-1 Brands

min read

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

Lipo C with retatrutide: understand what these unlicensed and investigational treatments are, how they are used in weight management, key safety risks, and UK regulatory guidance before considering either therapy.

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Weight loss

Read all on weight loss

Abnormal HbA1c ICD-10 Codes: UK Clinical Guide and NHS Thresholds

Weight Loss

min read

Abnormal HbA1c ICD-10 Codes: UK Clinical Guide and NHS Thresholds

Abnormal HbA1c ICD-10 codes explained for UK clinical practice — covering R73.0, R73.9, NHS diagnostic thresholds, NICE guidance, and when to refer. Read our full clinical guide.

Comparison of Blood Glucose, HbA1c and Fructosamine: NHS Guide

Weight Loss

min read

Comparison of Blood Glucose, HbA1c and Fructosamine: NHS Guide

Comparison of blood glucose, HbA1c, and fructosamine explained — discover how each test works, when it's used in NHS practice, their limitations, and how to understand your results.

Lap Band Gastric Banding System: NHS Eligibility, Risks and Alternatives

Weight Loss

min read

Lap Band Gastric Banding System: NHS Eligibility, Risks and Alternatives

Lap band gastric banding system explained: how LAGB works, NHS eligibility criteria, risks, diet after surgery, and UK alternatives including sleeve gastrectomy and gastric bypass.

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GLP-1 Brands

Read all on GLP-1 brands

Wegovy

Answer all your questions about Wegovy treatments for weight loss.

Read Wegovy guides

Mounjaro

Answer all your questions about Mounjaro treatments for weight loss.

Read Mounjaro guides

GLP-1 Brands

min read

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

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Retatrutide: Can Anyone Take It and Is It Available in the UK?

GLP-1 Brands

min read

Retatrutide: Can Anyone Take It and Is It Available in the UK?

Can anyone take retatrutide? Find out who may be eligible, who should avoid it, its current UK regulatory status, potential side effects, and how to speak to your GP about obesity treatment options.

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

GLP-1 Brands

min read

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

1 month retatrutide results explained: what Phase 2 trial data shows about early weight loss, common side effects, realistic expectations, and UK regulatory status in 2025.

Retatrutide Fridge Storage: What You Need to Know

GLP-1 Brands

min read

Retatrutide Fridge Storage: What You Need to Know

Retatrutide storage in the fridge explained: why no confirmed shelf-life exists yet, correct refrigeration conditions, signs of degradation, and what to do if the product is left out of the fridge.

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Men’s Health

Testosterone

Answer all your questions about testosterone.

Read testosterone guides

Erectile dysfunction

Answer all your questions about erectile dysfunction.

Read erectile dysfunction guides

Can Cialis Cause Gynaecomastia? Tadalafil Side Effects Explained

Erectile Dysfunction

min read

Can Cialis Cause Gynaecomastia? Tadalafil Side Effects Explained

Can Cialis cause gynaecomastia? Learn what the MHRA-approved evidence says about tadalafil and breast tissue changes, known side effects, and when to see a GP.

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Testosterone

min read

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Can testosterone cause gynaecomastia? Learn how testosterone converts to oestrogen, who is most at risk, how to spot symptoms, and what NHS treatment options are available.

Testosterone

min read

Testosterone Booster for Gynaecomastia: Evidence, Risks and UK Treatment Options

Testosterone booster for gynaecomastia — does it work? Explore the evidence, safety risks, MHRA and NHS guidance, and clinically recognised UK treatment options for enlarged male breast tissue.

Testosterone

min read

Calorie Deficit Effect on Testosterone: What the Evidence Shows

Calorie deficit effect on testosterone explained — learn how energy restriction affects hormone levels, warning signs to watch for, and evidence-based steps to protect testosterone while losing weight safely.

How to Use Testogel for Men: Application Guide & Safety Tips

Testosterone

min read

How to Use Testogel for Men: Application Guide & Safety Tips

Learn how to use Testogel for men safely and effectively. This comprehensive guide covers application techniques, dosing, monitoring, side effects, and essential safety tips for testosterone replacement therapy in the UK.

GLP-1 Brands

min read

Saxenda & Beta Blockers: Safety Guide

Using Saxenda with a beta blocker? Learn how liraglutide interacts with beta blockers, what to monitor, and key safety tips.

Why Does Tadalafil Cause a Stuffy Nose? Causes and Management

Erectile Dysfunction

min read

Why Does Tadalafil Cause a Stuffy Nose? Causes and Management

Discover why tadalafil causes a stuffy nose, how common this side effect is, and practical strategies to manage nasal congestion whilst taking this PDE5 inhibitor for erectile dysfunction or benign prostatic hyperplasia.

HbA1c vs A1c: Are They the Same Test? UK Guide

Weight Loss

min read

HbA1c vs A1c: Are They the Same Test? UK Guide

Is A1c the same as HbA1c? Yes — find out how this key diabetes blood test works, what your UK results mean in mmol/mol, target ranges, and when to see your GP.

How Does Trulicity Lower Blood Sugar in Type 2 Diabetes?

GLP-1 Brands

min read

How Does Trulicity Lower Blood Sugar in Type 2 Diabetes?

Discover how Trulicity lowers blood sugar through its GLP-1 receptor agonist mechanism. Learn about insulin enhancement, glucagon suppression, gastric emptying effects, response timeframes, and essential monitoring guidance for type 2 diabetes management.

How Do You Know When Ozempic Is Empty? UK Guide

GLP-1 Brands

min read

How Do You Know When Ozempic Is Empty? UK Guide

How do you know when Ozempic is empty? Learn to check your pen's dose selector, understand the counter mechanism, calculate remaining doses, and plan NHS repeat prescriptions to maintain uninterrupted diabetes treatment.

Lap Band Over Gastric Bypass: Procedure, Risks, and UK Options

Weight Loss

min read

Lap Band Over Gastric Bypass: Procedure, Risks, and UK Options

Lap band over gastric bypass: find out how this revisional bariatric procedure works, who may be eligible on the NHS, the risks involved, and what to discuss with your bariatric team.

How Long Does Tadalafil Take to Kick In? UK Guide

Erectile Dysfunction

min read

How Long Does Tadalafil Take to Kick In? UK Guide

How long does it take tadalafil to kick in? Discover onset times for erectile dysfunction and BPH treatment, factors affecting response, optimal timing strategies, and what to expect after taking this PDE5 inhibitor.

Ozempic Vomiting: Why It Happens & How to Stop It

GLP-1 Brands

min read

Ozempic Vomiting: Why It Happens & How to Stop It

Learn why Ozempic causes vomiting, how long it lasts, and proven ways to manage nausea. Plus, when to contact your doctor about side effects.

GlycoMark Test vs HbA1c: Key Differences and UK Guidance

Weight Loss

min read

GlycoMark Test vs HbA1c: Key Differences and UK Guidance

GlycoMark test vs HbA1c: understand how these two blood glucose markers differ, what each measures, their limitations, and what UK NHS and NICE guidance recommends for diabetes monitoring.

Gynaecomastia in the Army: Causes, Treatment and Fitness for Duty

Weight Loss

min read

Gynaecomastia in the Army: Causes, Treatment and Fitness for Duty

Gynaecomastia in the army: understand the causes, NHS and Defence Medical Services treatment options, fitness-for-duty implications, and when to seek urgent medical review.

Can You Put Testogel On Twice a Day? UK Dosing Guidance

Testosterone

min read

Can You Put Testogel On Twice a Day? UK Dosing Guidance

Can you apply Testogel twice daily? Discover why this testosterone gel is licensed for once-daily use in the UK, the risks of increasing application frequency without medical advice, and how to optimise your treatment safely under proper supervision.

Can You Take Januvia and Rybelsus Together?

GLP-1 Brands

min read

Can You Take Januvia and Rybelsus Together?

Can you take Januvia and Rybelsus together? Discover why UK guidance advises against combining these type 2 diabetes medications, how they work differently, and what alternative treatment options are available for better blood glucose control.

Can Saxenda Make You Sick? Nausea, Side Effects & Management

GLP-1 Brands

min read

Can Saxenda Make You Sick? Nausea, Side Effects & Management

Can Saxenda make you sick? Discover why nausea affects 40% of patients, when to seek medical attention, and evidence-based strategies to manage gastrointestinal side effects whilst taking this GLP-1 weight-loss medication.

Are Hazelnuts Good for Fatty Liver? Evidence and Guidance

Weight Loss

min read

Are Hazelnuts Good for Fatty Liver? Evidence and Guidance

Are hazelnuts good for fatty liver disease? Discover the evidence on hazelnuts for NAFLD, their nutritional benefits, recommended portions, and how to include them in a liver-supportive Mediterranean-style diet. Expert UK guidance inside.

Bolt Guides

Featured

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

Weight loss

Abnormal HbA1c ICD-10 Codes: UK Clinical Guide and NHS Thresholds

Comparison of Blood Glucose, HbA1c and Fructosamine: NHS Guide

Lap Band Gastric Banding System: NHS Eligibility, Risks and Alternatives

GLP-1 Brands

Wegovy

Mounjaro

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

Retatrutide: Can Anyone Take It and Is It Available in the UK?

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

Retatrutide Fridge Storage: What You Need to Know

Men’s Health

Testosterone

Erectile dysfunction

Can Cialis Cause Gynaecomastia? Tadalafil Side Effects Explained

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Testosterone Booster for Gynaecomastia: Evidence, Risks and UK Treatment Options

Calorie Deficit Effect on Testosterone: What the Evidence Shows

Browse all

How to Use Testogel for Men: Application Guide & Safety Tips

Saxenda & Beta Blockers: Safety Guide

Why Does Tadalafil Cause a Stuffy Nose? Causes and Management

HbA1c vs A1c: Are They the Same Test? UK Guide

How Does Trulicity Lower Blood Sugar in Type 2 Diabetes?

How Do You Know When Ozempic Is Empty? UK Guide

Lap Band Over Gastric Bypass: Procedure, Risks, and UK Options

How Long Does Tadalafil Take to Kick In? UK Guide

Ozempic Vomiting: Why It Happens & How to Stop It

GlycoMark Test vs HbA1c: Key Differences and UK Guidance

Gynaecomastia in the Army: Causes, Treatment and Fitness for Duty

Can You Put Testogel On Twice a Day? UK Dosing Guidance

Can You Take Januvia and Rybelsus Together?

Can Saxenda Make You Sick? Nausea, Side Effects & Management

Are Hazelnuts Good for Fatty Liver? Evidence and Guidance

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