Bolt Guides

When can you eat salad after gastric sleeve surgery? Find out the recommended timeline, safest ingredients, foods to avoid, and expert NHS-aligned tips for reintroducing raw foods comfortably.

Weight Loss

min read

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

Use a gastric sleeve weight loss calculator to estimate your results after sleeve gastrectomy. Learn how these tools work, NHS eligibility criteria, and expert recovery planning advice.

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

How Long Does Rybelsus Stay in Your System?

How long does Rybelsus stay in your system? Discover the elimination timeline, factors affecting clearance, and what happens when you stop taking this type 2 diabetes medication.

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What Is Ozempic Personality? Mood Changes and Semaglutide

GLP-1 Brands

min read

What Is Ozempic Personality? Mood Changes and Semaglutide

What is Ozempic personality? Explore reported mood and behavioural changes with semaglutide, the scientific evidence, and when to speak to your GP about side effects whilst taking Ozempic for type 2 diabetes.

What Does Trulicity Do to Your Body? Effects Explained

GLP-1 Brands

min read

What Does Trulicity Do to Your Body? Effects Explained

Discover what Trulicity does to your body, including how this GLP-1 receptor agonist lowers blood sugar, affects weight and appetite, and impacts long-term health in type 2 diabetes management.

Saxenda & Blood Donation: UK Eligibility Guide

GLP-1 Brands

min read

Saxenda & Blood Donation: UK Eligibility Guide

Taking Saxenda and want to give blood? Learn UK eligibility rules from NHSBT, what liraglutide means for donors, and when to seek advice before donating.

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

Trans Women & Erectile Function: UK Guide

Erectile Dysfunction

min read

Trans Women & Erectile Function: UK Guide

Learn how hormone therapy affects erections in trans women, whether Viagra is suitable, and what support is available through the NHS.

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Testosterone

min read

How Often Should Testosterone Be Checked When Using Testogel?

Find out how often testosterone levels should be checked when using Testogel. Learn about UK monitoring schedules, blood tests, safety checks, and signs your dose may need adjusting under NHS guidelines.

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.

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.

Weight Loss

min read

Can Weight Loss Injections Cause Heart Attacks? UK Evidence Review

Can weight loss injections cause heart attacks? Discover the evidence-based cardiovascular safety profile of GLP-1 medications like Wegovy and Saxenda, including clinical trial data, monitoring requirements, and UK prescribing guidance for safe obesity treatment.

Erectile Dysfunction

min read

Does Janumet Cause Erectile Dysfunction? Evidence and Guidance

Does Janumet cause erectile dysfunction? Discover the evidence-based answer, understand why ED is common in type 2 diabetes, and learn about effective management strategies while taking this diabetes medication.

Erectile Dysfunction

min read

Aloe Vera for Erectile Dysfunction: Does It Work?

No strong evidence supports aloe vera for ED. Find out what the science says, what NHS treatments actually work, and when to see your GP.

Hair Loss

min read

Do Hats Cause Hair Loss? Evidence, Causes, and NHS Treatments

Do hats cause hair loss? The science says no — but there are real causes worth knowing. Explore UK evidence, NHS treatments, and when to see your GP about hair loss.

Testosterone

min read

Testosterone for Women: Benefits, Risks & UK Guidance

Learn how testosterone treatment affects women's libido, its side effects, and what UK clinical guidance says about off-label use and alternatives.

Cost

min read

Wegovy Cost UK 2024–2025: NHS vs Private Prescription Prices

Discover Wegovy cost in the UK for 2024–2025. Compare NHS prescription charges (£9.90) versus private clinic fees (£200–£300 monthly). Learn about eligibility criteria, supply constraints, and how to access this weight management treatment affordably.

Magnesium Glycinate for Anxiety: Evidence, Dosage and Safety

Supplements

min read

Magnesium Glycinate for Anxiety: Evidence, Dosage and Safety

Discover how magnesium glycinate for anxiety works, recommended dosages, potential side effects, and how it compares to evidence-based treatments. Expert guidance on safe use and when to seek professional help for anxiety symptoms.

How to Reverse a 5.8% HbA1c: NHS-Backed Lifestyle Advice

Weight Loss

min read

How to Reverse a 5.8% HbA1c: NHS-Backed Lifestyle Advice

How to reverse a 5.8% HbA1c with NHS-backed diet, exercise, and lifestyle advice. Understand what your result means, how long changes take, and when to see your GP.

Erectile Dysfunction

min read

Does Bromide Cause Erectile Dysfunction? Evidence and Guidance

Does bromide cause erectile dysfunction? Discover what the evidence shows about bromide and sexual function, which medications can affect erections, and when to seek medical advice for erectile difficulties.

Vitamin D Calciferol: Benefits, Deficiency Signs, Dosage & Sources

Supplements

min read

Vitamin D Calciferol: Benefits, Deficiency Signs, Dosage & Sources

Discover everything about vitamin D calciferol: what it does, signs of deficiency, who needs supplements in the UK, recommended doses, side effects, and natural sources. Essential guidance for bone health.

Hair Loss

min read

Microneedling for Hair Loss: Evidence, Risks, and UK Access

Does microneedling work for hair loss? Explore the clinical evidence, suitable candidates, risks, and how to access safe treatment in the UK for androgenetic alopecia and alopecia areata.

Lack of B12 Signs: Symptoms, Risk Factors and When to Seek Help

Supplements

min read

Lack of B12 Signs: Symptoms, Risk Factors and When to Seek Help

Discover the key signs of lack of B12, from fatigue and pale skin to neurological symptoms like pins and needles. Learn who's at risk, when to see your GP, and how B12 deficiency is diagnosed and treated in the UK.

Mounjaro

min read

What Does Mounjaro Do? Uses & How It Works

Discover what Mounjaro (tirzepatide) is, how it works, and who's eligible. Your clear UK guide to uses and side effects.

Mounjaro

min read

How Often Do You Inject Mounjaro? Weekly Dosing Guide

Discover how often you inject Mounjaro (tirzepatide) for type 2 diabetes. Learn the once-weekly schedule, what to do if you miss a dose, and practical tips for maintaining your injection routine safely and effectively.

Gastric Sleeve Surgery: How It Works, Eligibility, Risks and Alternatives

Weight Loss

min read

Gastric Sleeve Surgery: How It Works, Eligibility, Risks and Alternatives

Gastric sleeve surgery explained: how sleeve gastrectomy works, NHS eligibility criteria, what to expect before and after the procedure, risks, and UK alternatives. Read our expert guide.

Bolt Guides

Featured

What Is RMR? Resting Metabolic Rate Explained

Weight loss

What Is RMR? Resting Metabolic Rate Explained

When Can I Eat Salad After Gastric Sleeve Surgery?

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

GLP-1 Brands

Wegovy

Mounjaro

How Long Does Rybelsus Stay in Your System?

What Is Ozempic Personality? Mood Changes and Semaglutide

What Does Trulicity Do to Your Body? Effects Explained

Saxenda & Blood Donation: UK Eligibility Guide

Men’s Health

Testosterone

Erectile dysfunction

Trans Women & Erectile Function: UK Guide

How Often Should Testosterone Be Checked When Using Testogel?

Where to Put Testogel for Women: Safe Application Sites

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Browse all

Can Weight Loss Injections Cause Heart Attacks? UK Evidence Review

Does Janumet Cause Erectile Dysfunction? Evidence and Guidance

Aloe Vera for Erectile Dysfunction: Does It Work?

Do Hats Cause Hair Loss? Evidence, Causes, and NHS Treatments

Testosterone for Women: Benefits, Risks & UK Guidance

Wegovy Cost UK 2024–2025: NHS vs Private Prescription Prices

Magnesium Glycinate for Anxiety: Evidence, Dosage and Safety

How to Reverse a 5.8% HbA1c: NHS-Backed Lifestyle Advice

Does Bromide Cause Erectile Dysfunction? Evidence and Guidance

Vitamin D Calciferol: Benefits, Deficiency Signs, Dosage & Sources

Microneedling for Hair Loss: Evidence, Risks, and UK Access

Lack of B12 Signs: Symptoms, Risk Factors and When to Seek Help

What Does Mounjaro Do? Uses & How It Works

How Often Do You Inject Mounjaro? Weekly Dosing Guide

Gastric Sleeve Surgery: How It Works, Eligibility, Risks and Alternatives

Personalized weight management for women