Bolt Guides

Find out which intermittent fasting methods are easiest to stick to, what the evidence says about long-term results, and practical tips to make IF work for you.

How Does Fasting Work? Benefits, Types & Safety

Weight Loss

min read

How Does Fasting Work? Benefits, Types & Safety

Discover what fasting does to your body — from fat burning and autophagy to hormonal shifts. Learn the types, rules, and who should avoid fasting.

Read all on weight loss

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

Ozempic Nausea: Why It Happens & How to Manage It

Feeling sick on Ozempic? Learn why nausea is so common with semaglutide, how long it lasts, tips to ease symptoms, and when to seek medical advice.

Read now

Ozempic Nausea: Why It Happens & How to Manage It

Lump After Injection: Causes, Treatment & Prevention

GLP-1 Brands

min read

Lump After Injection: Causes, Treatment & Prevention

Got a lump after a subcutaneous injection? Learn what causes injection site lumps, how to treat them at home, and when to seek medical advice.

Swollen Lymph Nodes and Saxenda: Causes & Advice

GLP-1 Brands

min read

Swollen Lymph Nodes and Saxenda: Causes & Advice

Not sure if Saxenda causes swollen lymph nodes? Learn what lymphadenopathy means, likely causes, and when to seek medical help during weight loss treatment.

Does Ozempic Cause Headaches? Causes & Management

GLP-1 Brands

min read

Does Ozempic Cause Headaches? Causes & Management

Ozempic headaches affect 1 in 10–100 patients. Find out why they happen, how long they last, and practical ways to manage them safely.

Read all on GLP-1 brands

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

Erectile Dysfunction

min read

Does Castor Oil Help with Erectile Dysfunction? Evidence and Treatments

Does castor oil help with erectile dysfunction? Discover the evidence behind this claim, learn about proven ED treatments recommended by NICE, and find out when to see your GP for persistent erectile difficulties.

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Testosterone

min read

Does Testosterone Affect Fertility? Recovery & Conception Guide

Testosterone suppresses ovulation and fertility — but can it return after stopping treatment? Explore recovery timelines, risks, and conception options with ...

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.

Testosterone

min read

How Many nmol/L Does Testogel Raise Testosterone Levels?

Discover how many nmol/L Testogel raises testosterone levels in UK patients. Learn about expected increases, individual variation, dosing, absorption factors, and essential monitoring for safe testosterone replacement therapy.

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.

Does Testogel Degrade in Baggage Holds of Planes? UK Travel Guide

Testosterone

min read

Does Testogel Degrade in Baggage Holds of Planes? UK Travel Guide

Does Testogel degrade in baggage holds of planes? Discover how aircraft cargo temperatures affect testosterone gel stability, UK travel regulations for carrying Testogel in hand luggage, and expert guidance on protecting your hormone replacement therapy during air travel.

Erectile Dysfunction

min read

Is Levitra Better Than Sildenafil for Erectile Dysfunction?

Is Levitra better than sildenafil for erectile dysfunction? Compare effectiveness, side effects, and costs of these PDE5 inhibitors. Expert UK guidance on choosing the right ED treatment for you.

Erectile Dysfunction

min read

Do Endocrinologists Treat Erectile Dysfunction? When to Seek Specialist Care

Do endocrinologists treat erectile dysfunction? Discover when specialist hormonal assessment is needed, what tests and treatments endocrinologists offer, and how they work with your GP to address underlying causes like low testosterone, diabetes, and thyroid disorders.

Erectile Dysfunction

min read

A Bracelet for Erectile Dysfunction: Evidence and NHS Treatments

Considering a bracelet for erectile dysfunction? Discover why these wearable devices lack clinical evidence, how they differ from NHS-approved treatments, and why proper medical assessment is essential for effective ED management.

Erectile Dysfunction

min read

Which Telehealth Service Is Best for Erectile Dysfunction in the UK?

Which telehealth service is best for erectile dysfunction? Compare UK online ED providers, understand how remote consultations work, and learn what to check for safety, regulation, and quality care.

How to Get Testogel: UK Prescription Guide for TRT

Testosterone

min read

How to Get Testogel: UK Prescription Guide for TRT

Learn how to get Testogel in the UK: from GP assessment and blood tests to NHS vs private routes, prescription requirements, and safe collection from pharmacies. Expert guidance on accessing testosterone replacement therapy.

How Long Does Testogel Last? Duration, Absorption & UK Guidance

Testosterone

min read

How Long Does Testogel Last? Duration, Absorption & UK Guidance

How long does Testogel last in your system? Discover absorption times, duration of action, factors affecting testosterone levels, and expert UK guidance on safe daily use for hypogonadism treatment.

Where to Put Testogel for Women: Safe Application Sites

Testosterone

min read

Where to Put Testogel for Women: Safe Application Sites

Discover where to put Testogel safely if you're a woman prescribed this off-label testosterone therapy. Learn the recommended application sites, step-by-step technique, and essential safety precautions to optimise treatment and minimise risks.

Erectile Dysfunction

min read

Does Monster Cause Erectile Dysfunction? Evidence and Advice

Does Monster cause erectile dysfunction? Discover the evidence linking energy drinks to ED, how caffeine and sugar affect sexual function, and when to seek medical advice for erectile problems.

Erectile Dysfunction

min read

A.Vogel Erectile Dysfunction: Evidence, NHS Treatments & Safety

Exploring A.Vogel erectile dysfunction remedies? Discover why no A.Vogel product is licensed for ED in the UK, the evidence for herbal treatments, NHS options including PDE5 inhibitors, and essential safety considerations before using herbal supplements.

Erectile Dysfunction

min read

Does Solifenacin Cause Erectile Dysfunction? Evidence and Management

Does solifenacin cause erectile dysfunction? Discover the evidence, potential mechanisms, and practical management strategies for men experiencing sexual side effects whilst taking solifenacin for overactive bladder.

GLP-1 Brands

min read

Lump After Injection: Causes, Treatment & Prevention

Got a lump after a subcutaneous injection? Learn what causes injection site lumps, how to treat them at home, and when to seek medical advice.

GLP-1 Brands

min read

Swollen Lymph Nodes and Saxenda: Causes & Advice

Not sure if Saxenda causes swollen lymph nodes? Learn what lymphadenopathy means, likely causes, and when to seek medical help during weight loss treatment.

GLP-1 Brands

min read

Does Ozempic Cause Headaches? Causes & Management

Ozempic headaches affect 1 in 10–100 patients. Find out why they happen, how long they last, and practical ways to manage them safely.

Bolt Guides

Featured

Best Time to Take GLP-1: Morning or Night? (UK Guide)

Weight loss

Best Time to Take GLP-1: Morning or Night? (UK Guide)

Is 16/8 Intermittent Fasting Sustainable Long-Term?

How Does Fasting Work? Benefits, Types & Safety

GLP-1 Brands

Wegovy

Mounjaro

Ozempic Nausea: Why It Happens & How to Manage It

Lump After Injection: Causes, Treatment & Prevention

Swollen Lymph Nodes and Saxenda: Causes & Advice

Does Ozempic Cause Headaches? Causes & Management

Men’s Health

Testosterone

Erectile dysfunction

Does Castor Oil Help with Erectile Dysfunction? Evidence and Treatments

Does Testosterone Affect Fertility? Recovery & Conception Guide

Calorie Deficit Effect on Testosterone: What the Evidence Shows

How Many nmol/L Does Testogel Raise Testosterone Levels?

Browse all

When to Start Testogel: Clinical Indications and Guidelines

Does Testogel Degrade in Baggage Holds of Planes? UK Travel Guide

Is Levitra Better Than Sildenafil for Erectile Dysfunction?

Do Endocrinologists Treat Erectile Dysfunction? When to Seek Specialist Care

A Bracelet for Erectile Dysfunction: Evidence and NHS Treatments

Which Telehealth Service Is Best for Erectile Dysfunction in the UK?

How to Get Testogel: UK Prescription Guide for TRT

How Long Does Testogel Last? Duration, Absorption & UK Guidance

Where to Put Testogel for Women: Safe Application Sites

Does Monster Cause Erectile Dysfunction? Evidence and Advice

A.Vogel Erectile Dysfunction: Evidence, NHS Treatments & Safety

Does Solifenacin Cause Erectile Dysfunction? Evidence and Management

Lump After Injection: Causes, Treatment & Prevention

Swollen Lymph Nodes and Saxenda: Causes & Advice

Does Ozempic Cause Headaches? Causes & Management

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