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.

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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.

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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.

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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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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.

Erectile Dysfunction

min read

Does Red Light Therapy Help Erectile Dysfunction? UK Evidence & Guidance

Does red light therapy help erectile dysfunction? Explore the evidence, safety, and UK guidance on photobiomodulation for ED, plus proven treatment options available through the NHS.

Hair Loss

min read

Foods That Cause Hair Loss: Diet, Deficiencies, and What the Evidence Shows

Foods that cause hair loss explained — discover which dietary patterns, nutrients, and deficiencies affect hair shedding, plus evidence-based advice aligned with NHS and NICE guidance.

Alcohol and Type 2 Diabetes: Safe Drinking Guidelines and Risks

Weight Loss

min read

Alcohol and Type 2 Diabetes: Safe Drinking Guidelines and Risks

Discover how alcohol affects blood sugar in type 2 diabetes, safe drinking guidelines, hypoglycaemia risks, and practical strategies to manage alcohol consumption safely with diabetes medicines and monitoring.

How Long Do You Wear a GLP-1 Patch? UK Clinical Guidance

Weight Loss

min read

How Long Do You Wear a GLP-1 Patch? UK Clinical Guidance

How long do you wear a GLP-1 patch? Discover the facts about investigational GLP-1 transdermal patches, wearing durations, and why no patches are currently licensed in the UK. Learn about approved alternatives.

Calorie Deficit on Holiday: Practical Strategies That Actually Work

Weight Loss

min read

Calorie Deficit on Holiday: Practical Strategies That Actually Work

Calorie deficit on holiday — is it possible? Discover practical, NHS-aligned strategies for managing your calorie balance, staying active, and getting back on track after your trip.

Can COVID Increase HbA1c? Causes, Risks and NHS Guidance

Weight Loss

min read

Can COVID Increase HbA1c? Causes, Risks and NHS Guidance

Can COVID increase HbA1c? Find out how COVID-19 affects blood sugar levels, who is most at risk, when to get tested, and what NHS guidance says about managing raised HbA1c after infection.

How to Use an HbA1c Machine: Step-by-Step UK Guide

Weight Loss

min read

How to Use an HbA1c Machine: Step-by-Step UK Guide

How to use an HbA1c machine safely and accurately — step-by-step guidance for home and clinical use, NHS target ranges explained, and when to contact your GP or diabetes team.

Erectile Dysfunction

min read

Does Repatha Cause Erectile Dysfunction? Evidence and Guidance

Does Repatha cause erectile dysfunction? Discover the clinical evidence, understand the link between cholesterol medications and ED, and learn when to speak to your GP about managing both conditions safely.

Erectile Dysfunction

min read

Can Erectile Dysfunction Be Cured? ED Treatments

Find out whether erectile dysfunction can be cured. Explore evidence-based ED treatments, lifestyle changes, and when to seek medical advice.

Reactive Hypoglycaemia and HbA1c: What Tests Actually Diagnose It

Weight Loss

min read

Reactive Hypoglycaemia and HbA1c: What Tests Actually Diagnose It

Does reactive hypoglycaemia show up on HbA1c? Find out why it doesn't, which UK tests can diagnose it, when to see your GP, and how it's managed on the NHS.

Calorie Deficit at Olive Garden: Smart Menu Choices Explained

Weight Loss

min read

Calorie Deficit at Olive Garden: Smart Menu Choices Explained

Calorie deficit at Olive Garden made simple — discover the calorie counts of popular menu items, practical lower-calorie swaps, and expert tips for dining out without derailing your weight management goals.

NAD+, Nicotinamide Riboside and Resveratrol: UK Evidence and Safety

Supplements

min read

NAD+, Nicotinamide Riboside and Resveratrol: UK Evidence and Safety

Discover what NAD+, nicotinamide riboside and resveratrol are, how they work together, and what UK evidence and safety guidance says about these cellular health supplements.

How to Use Testogel for Menopause: Safe Application and Monitoring

Testosterone

min read

How to Use Testogel for Menopause: Safe Application and Monitoring

Learn how to use Testogel for menopause safely, including application technique, dosing, side effects, and monitoring. Expert guidance on off-label testosterone therapy for low sexual desire in postmenopausal women.

Do Bananas Slow Metabolism? What the Evidence Says

Weight Loss

min read

Do Bananas Slow Metabolism? What the Evidence Says

Find out whether bananas affect your metabolism, cause weight gain, or boost energy. Evidence-based answers aligned with NHS guidance on banana nutrition.

Lap Band After Gastric Bypass: Risks, Evidence, and UK Alternatives

Weight Loss

min read

Lap Band After Gastric Bypass: Risks, Evidence, and UK Alternatives

Lap band after gastric bypass surgery: understand the risks, NHS eligibility, evidence, and alternatives for this complex revisional bariatric procedure. Expert UK clinical guidance.

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

Does Red Light Therapy Help Erectile Dysfunction? UK Evidence & Guidance

Foods That Cause Hair Loss: Diet, Deficiencies, and What the Evidence Shows

Alcohol and Type 2 Diabetes: Safe Drinking Guidelines and Risks

How Long Do You Wear a GLP-1 Patch? UK Clinical Guidance

Calorie Deficit on Holiday: Practical Strategies That Actually Work

Can COVID Increase HbA1c? Causes, Risks and NHS Guidance

How to Use an HbA1c Machine: Step-by-Step UK Guide

Does Repatha Cause Erectile Dysfunction? Evidence and Guidance

Can Erectile Dysfunction Be Cured? ED Treatments

Reactive Hypoglycaemia and HbA1c: What Tests Actually Diagnose It

Calorie Deficit at Olive Garden: Smart Menu Choices Explained

NAD+, Nicotinamide Riboside and Resveratrol: UK Evidence and Safety

How to Use Testogel for Menopause: Safe Application and Monitoring

Do Bananas Slow Metabolism? What the Evidence Says

Lap Band After Gastric Bypass: Risks, Evidence, and UK Alternatives

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