Bolt Guides

Expert insights on weight loss and more.

Featured

Retatrutide Dosage: What Clinical Trial Evidence Currently Shows

GLP-1 Brands

min read

Retatrutide Dosage: What Clinical Trial Evidence Currently Shows

Retatrutide dosage explained: learn what Phase 2 trial data reveals about weekly doses, how this triple agonist works, its safety profile, UK regulatory status, and when it may become available.

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Weight loss

Read all on weight loss

Stricture After Gastric Sleeve: Causes, Symptoms and UK Treatment

Weight Loss

min read

Stricture After Gastric Sleeve: Causes, Symptoms and UK Treatment

What is a stricture after gastric sleeve surgery? Learn about the causes, symptoms, diagnosis, and NHS treatment options for sleeve gastrectomy stenosis in this expert UK guide.

Body Odour and Intermittent Fasting: Causes, Management and NHS Guidance

Weight Loss

min read

Body Odour and Intermittent Fasting: Causes, Management and NHS Guidance

Body odour during intermittent fasting explained — discover why fasting causes changes in sweat and breath smell, when to seek medical advice, and NHS-aligned tips to manage it effectively.

COVID Treatment for Obese Patients: NHS Guidance and Care

Weight Loss

min read

COVID Treatment for Obese Patients: NHS Guidance and Care

Comprehensive guide to COVID treatment for obese patients: NHS-recommended antivirals, corticosteroids, hospital care protocols, dosing considerations, and long COVID recovery support based on UK clinical guidance.

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GLP-1 Brands

Read all on GLP-1 brands

Wegovy

Answer all your questions about Wegovy treatments for weight loss.

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Mounjaro

Answer all your questions about Mounjaro treatments for weight loss.

Read Mounjaro guides

GLP-1 Brands

min read

Retatrutide Dosage: What Clinical Trial Evidence Currently Shows

Retatrutide dosage explained: learn what Phase 2 trial data reveals about weekly doses, how this triple agonist works, its safety profile, UK regulatory status, and when it may become available.

Read now

Retatrutide Not Working: Causes, Solutions and UK Alternatives

GLP-1 Brands

min read

Retatrutide Not Working: Causes, Solutions and UK Alternatives

Retatrutide not working? Discover the clinical and lifestyle reasons behind suboptimal results, when to contact your GP, and MHRA-approved alternatives available in the UK.

How to Use the Lyxumia Pen: Step-by-Step Guide

GLP-1 Brands

min read

How to Use the Lyxumia Pen: Step-by-Step Guide

Learn how to use the Lyxumia pen correctly with our step-by-step guide. Discover proper injection technique, storage tips, troubleshooting advice, and essential safety information for effective type 2 diabetes management.

How to Inject Victoza: Sites, Technique & Rotation

GLP-1 Brands

min read

How to Inject Victoza: Sites, Technique & Rotation

Find out how to inject Victoza safely — including the best injection sites, step-by-step technique, and site rotation tips for effective liraglutide use.

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Men’s Health

Testosterone

Answer all your questions about testosterone.

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Erectile dysfunction

Answer all your questions about erectile dysfunction.

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Sildenafil and Timing: How Long It Takes to Work and Last

Erectile Dysfunction

min read

Sildenafil and Timing: How Long It Takes to Work and Last

Does sildenafil increase timing? Find out how long sildenafil takes to work, how long it lasts, and what affects its effectiveness — with UK NHS and NICE guidance.

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Testosterone

min read

Is Testosterone Treatment Real Testosterone or Synthetic? UK Guide

Is testosterone treatment real testosterone or synthetic? Discover the truth about TRT medications in the UK. All licensed preparations contain bioidentical testosterone—molecularly identical to your body's natural hormone. Learn about regulation, safety, and what to expect from legitimate treatment.

Testosterone

min read

Does Testosterone Treatment Help with Gynaecomastia? UK Evidence Review

Does testosterone treatment help with gynaecomastia? Discover the complex relationship between testosterone therapy and male breast enlargement, when it might help, and why it can sometimes worsen the condition. Evidence-based UK guidance explained.

When to Start Testogel: Clinical Indications and Guidelines

Testosterone

min read

When to Start Testogel: Clinical Indications and Guidelines

Discover when to start Testogel for testosterone replacement therapy. Expert guidance on clinical indications, essential blood tests, dosing protocols, contraindications, and monitoring requirements for safe TRT initiation in the UK.

Berberine Drug Interactions: Complete Safety Guide

Supplements

min read

Berberine Drug Interactions: Complete Safety Guide

Which medications interact with berberine? See the complete list of drug interactions, warning signs, and when to consult your GP before taking.

Can Retatrutide Get Rid of Gyno? UK Evidence Explained

GLP-1 Brands

min read

Can Retatrutide Get Rid of Gyno? UK Evidence Explained

Can retatrutide get rid of gyno? Learn what the evidence says, how retatrutide works, why it cannot treat true gynaecomastia, and what NHS treatment options are available in the UK.

Cost

min read

Private Doc Mounjaro Cost: UK Pricing and Treatment Guide

Discover the true Private Doc Mounjaro cost in the UK, including medication fees, consultations, and ongoing support. Compare NHS vs private access, understand what's included in treatment packages, and learn how to budget for tirzepatide therapy. Essential guidance for informed decision-making.

Best Allergy Medication for Itchy Watery Eyes: UK Guide

Supplements

min read

Best Allergy Medication for Itchy Watery Eyes: UK Guide

Discover the best allergy medication for itchy watery eyes, including antihistamine eye drops like ketotifen and olopatadine. Learn which treatments work fastest, when to combine oral antihistamines with eye drops, and when to seek medical advice for persistent allergic conjunctivitis symptoms.

Calorie Deficit Ice Cream: How to Enjoy It Whilst Losing Weight

Weight Loss

min read

Calorie Deficit Ice Cream: How to Enjoy It Whilst Losing Weight

Calorie deficit ice cream: find out how to enjoy ice cream whilst losing weight, which lower-calorie UK options to choose, and expert tips for staying on track.

Will a Calorie Deficit Lose Fat? Science, Safety & NHS Guidance

Weight Loss

min read

Will a Calorie Deficit Lose Fat? Science, Safety & NHS Guidance

Will a calorie deficit lose fat? Discover the science behind how calorie deficits trigger fat loss, how to calculate a safe deficit, and what NHS and NICE guidance recommends for sustainable results.

Supplements

min read

Tru Niagen NAD+ Supplements: Evidence, Dosage and Safety

Tru Niagen NAD+ supplements explained: how nicotinamide riboside works, clinical evidence, recommended dosage, potential side effects, safety considerations, and who should consider NAD+ supplementation. UK guidance reviewed.

Berberine and Ashwagandha Together: Safety, Benefits and Interactions

Supplements

min read

Berberine and Ashwagandha Together: Safety, Benefits and Interactions

Can you take berberine and ashwagandha together safely? Discover the evidence on combining these popular supplements, potential benefits, interactions, dosing guidance, and when to seek medical advice in the UK.

Mounjaro

min read

Mounjaro and Depo Shot: Safety, Interactions and Guidance

Can you use Mounjaro and Depo-Provera together safely? Discover how these medications interact, their effects on contraception and weight, and when to consult your GP for personalised advice.

Does HbA1c Increase During Pregnancy? What UK Guidelines Say

Weight Loss

min read

Does HbA1c Increase During Pregnancy? What UK Guidelines Say

Does HbA1c increase during pregnancy? Learn why HbA1c typically falls in pregnancy, why it can be misleading, and what NICE NG3 guidelines recommend for blood glucose monitoring.

Hair Loss

min read

Does Radiotherapy Cause Hair Loss? What to Expect

Radiotherapy can cause hair loss — but only where radiation is directed. Learn which areas are affected, and whether regrowth is likely after treatment.

Does Tadalafil Increase Testosterone Levels? Evidence and Treatment Options

Erectile Dysfunction

min read

Does Tadalafil Increase Testosterone Levels? Evidence and Treatment Options

Does tadalafil increase testosterone levels? Discover the evidence-based answer, understand how tadalafil works, and learn about appropriate treatments for low testosterone and erectile dysfunction in the UK.

Is Fish Skin Good for You? Benefits, Risks and Safety

Supplements

min read

Is Fish Skin Good for You? Benefits, Risks and Safety

Is fish skin good for you? Discover the nutritional benefits of fish skin, including omega-3s and collagen, plus essential safety guidance, preparation tips, and who should avoid it according to NHS and FSA recommendations.

Can You Eat Cookies on a Calorie Deficit? A UK Guide

Weight Loss

min read

Can You Eat Cookies on a Calorie Deficit? A UK Guide

Can you eat cookies on a calorie deficit? Yes — find out how to include biscuits in your daily calorie allowance, understand their nutritional impact, and get practical tips for staying on track with your weight loss goals.

Hair Loss

min read

Brittle Fingernails and Hair Loss: Causes, Diagnosis and NHS Treatments

Brittle fingernails and hair loss can signal iron deficiency, thyroid disorders, or other treatable conditions. Discover causes, NHS diagnosis, treatments, and expert lifestyle advice.

Bolt Guides

Featured

Retatrutide Dosage: What Clinical Trial Evidence Currently Shows

Weight loss

Stricture After Gastric Sleeve: Causes, Symptoms and UK Treatment

Body Odour and Intermittent Fasting: Causes, Management and NHS Guidance

COVID Treatment for Obese Patients: NHS Guidance and Care

GLP-1 Brands

Wegovy

Mounjaro

Retatrutide Dosage: What Clinical Trial Evidence Currently Shows

Retatrutide Not Working: Causes, Solutions and UK Alternatives

How to Use the Lyxumia Pen: Step-by-Step Guide

How to Inject Victoza: Sites, Technique & Rotation

Men’s Health

Testosterone

Erectile dysfunction

Sildenafil and Timing: How Long It Takes to Work and Last

Is Testosterone Treatment Real Testosterone or Synthetic? UK Guide

Does Testosterone Treatment Help with Gynaecomastia? UK Evidence Review

When to Start Testogel: Clinical Indications and Guidelines

Browse all

Berberine Drug Interactions: Complete Safety Guide

Can Retatrutide Get Rid of Gyno? UK Evidence Explained

Private Doc Mounjaro Cost: UK Pricing and Treatment Guide

Best Allergy Medication for Itchy Watery Eyes: UK Guide

Calorie Deficit Ice Cream: How to Enjoy It Whilst Losing Weight

Will a Calorie Deficit Lose Fat? Science, Safety & NHS Guidance

Tru Niagen NAD+ Supplements: Evidence, Dosage and Safety

Berberine and Ashwagandha Together: Safety, Benefits and Interactions

Mounjaro and Depo Shot: Safety, Interactions and Guidance

Does HbA1c Increase During Pregnancy? What UK Guidelines Say

Does Radiotherapy Cause Hair Loss? What to Expect

Does Tadalafil Increase Testosterone Levels? Evidence and Treatment Options

Is Fish Skin Good for You? Benefits, Risks and Safety

Can You Eat Cookies on a Calorie Deficit? A UK Guide

Brittle Fingernails and Hair Loss: Causes, Diagnosis and NHS Treatments

Personalized weight management for women