Bolt Guides

Expert insights on weight loss and more.

Featured

Hair Loss

min read

A Hair Loss Treatment Guide: UK Options, Safety, and NHS Advice

A hair loss treatment that works starts with the right diagnosis. Explore UK-licensed options including minoxidil, finasteride, and baricitinib — with NHS guidance, safety advice, and when to see your GP.

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Weight loss

Read all on weight loss

Safe HbA1c Levels for Surgery: UK Guidelines and Perioperative Advice

Weight Loss

min read

Safe HbA1c Levels for Surgery: UK Guidelines and Perioperative Advice

Safe HbA1c levels for surgery explained: UK thresholds, NICE and CPOC guidance, how to lower HbA1c before an operation, and perioperative blood glucose management for people with diabetes.

Liver-Friendly Chilli Recipe for Fatty Liver Disease Management

Weight Loss

min read

Liver-Friendly Chilli Recipe for Fatty Liver Disease Management

Discover a liver-friendly chilli recipe for fatty liver disease management. Learn evidence-based ingredient modifications, nutritional principles, and when to seek medical advice for NAFLD in the UK.

Are Spicy Foods Good for Fatty Liver? Evidence and Safety

Weight Loss

min read

Are Spicy Foods Good for Fatty Liver? Evidence and Safety

Are spicy foods good for fatty liver? Discover what the evidence says about capsaicin, chilli peppers, and liver health. Learn safe ways to include spicy foods in a liver-friendly diet and when to seek medical advice for fatty liver disease.

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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

Different Strengths of Trulicity: Dosing Guide for Type 2 Diabetes

Discover the different strengths of Trulicity (0.75 mg to 4.5 mg) for type 2 diabetes management. Learn how doctors choose the right dose, when adjustments occur, and how efficacy and side effects compare across strengths in UK practice.

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Different Strengths of Trulicity: Dosing Guide for Type 2 Diabetes

Saxenda and Bloating: Causes, Frequency & Relief

GLP-1 Brands

min read

Saxenda and Bloating: Causes, Frequency & Relief

Saxenda commonly causes bloating due to slowed gastric emptying. Learn how often it occurs, why it happens, and how to manage it with NHS-aligned advice.

Can Rybelsus Cause Depression? Evidence and Guidance

GLP-1 Brands

min read

Can Rybelsus Cause Depression? Evidence and Guidance

Can Rybelsus cause depression? Explore the evidence linking semaglutide to mood changes, recognise warning signs, and learn what to do if you experience low mood whilst taking this type 2 diabetes medication.

Can Trulicity Be Put Back in the Fridge? UK Storage Guide

GLP-1 Brands

min read

Can Trulicity Be Put Back in the Fridge? UK Storage Guide

Can Trulicity be put back in the fridge? Discover UK storage guidelines for dulaglutide, including refrigeration rules, temperature limits, and when to discard your pen safely.

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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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Erectile Dysfunction

min read

Does Sublocade Cause Erectile Dysfunction? UK Medical Guide

Does Sublocade cause erectile dysfunction? Discover how prolonged-release buprenorphine may affect sexual function, the underlying mechanisms, practical management strategies, and when to speak to your doctor about erectile dysfunction during opioid dependence treatment.

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Testosterone

min read

Can Testosterone Treatment Increase Penis Size? Evidence and Guidance

Can testosterone treatment increase penis size in adults? Discover the evidence on testosterone's role in penile development, when treatment is appropriate, and what really works for size concerns. Expert UK medical guidance.

Testosterone

min read

How to Treat Rash From Testosterone Treatment: Expert Guide

Discover how to treat rash from testosterone treatment with expert guidance on identifying skin reactions, immediate management steps, medical treatments, and prevention strategies to continue TRT safely and comfortably.

What Will 3 Days Without Testogel Do to Me?

Testosterone

min read

What Will 3 Days Without Testogel Do to Me?

What will 3 days without Testogel do to me? Discover how missing doses affects testosterone levels, what symptoms to expect within 72 hours, when to contact your GP, and how to safely resume treatment for hypogonadism.

Cod Liver Oil Side Effects: Safety Guide and UK Advice

Supplements

min read

Cod Liver Oil Side Effects: Safety Guide and UK Advice

Discover cod liver oil side effects, from common digestive issues to serious vitamin toxicity risks. Learn who should avoid it, safe dosages, and when to seek medical advice with UK NHS guidance.

Flaxseed and Omega-3 Fatty Acids: Benefits and Safety

Supplements

min read

Flaxseed and Omega-3 Fatty Acids: Benefits and Safety

Discover how flaxseed and omega-3 fatty acids support your health. Learn about ALA conversion, recommended daily intake, cardiovascular benefits, and essential safety considerations for this plant-based omega-3 source.

Does Saxenda Lower Cholesterol? Evidence and Clinical Guidance

GLP-1 Brands

min read

Does Saxenda Lower Cholesterol? Evidence and Clinical Guidance

Does Saxenda lower cholesterol levels? Discover how this weight-loss medication may indirectly improve lipid profiles through weight reduction, plus essential guidance on managing cholesterol alongside Saxenda treatment.

Vitamin K Lotion: Uses, Benefits, and Safety for Skin

Supplements

min read

Vitamin K Lotion: Uses, Benefits, and Safety for Skin

Discover what vitamin K lotion is, how it works for bruising and spider veins, proper application methods, potential side effects, and evidence-based alternatives. Expert UK guidance on topical vitamin K for skin concerns.

Does Fatty Liver Disease Cause Jaundice? Symptoms and When to Seek Help

Weight Loss

min read

Does Fatty Liver Disease Cause Jaundice? Symptoms and When to Seek Help

Does fatty liver disease cause jaundice? Discover when fatty liver progresses to jaundice, what symptoms to watch for, and when to seek urgent medical advice for liver health concerns.

Can I Take Viagra with Fatty Liver? Safety and Dosing Guide

Weight Loss

min read

Can I Take Viagra with Fatty Liver? Safety and Dosing Guide

Can I take Viagra with fatty liver disease? Discover how liver function affects Viagra safety, dosing adjustments for hepatic impairment, drug interactions to avoid, and when to consult your GP before starting sildenafil.

Erectile Dysfunction

min read

Do ACE Inhibitors Cause Erectile Dysfunction? Evidence and Management

Do ACE inhibitors cause erectile dysfunction? Discover the evidence on ACE inhibitors and sexual function, how they compare to other blood pressure medications, and what to do if you experience ED whilst taking these drugs.

Saxenda & Back Pain: Side Effects Explained

GLP-1 Brands

min read

Saxenda & Back Pain: Side Effects Explained

Does Saxenda cause back pain? Explore the evidence, possible causes, and when to seek medical advice. Clear UK guidance for patients and clinicians.

Hair Loss

min read

Does Red Light Therapy Work for Hair Loss? UK Evidence Guide

Does red light therapy work for hair loss? Explore the clinical evidence, safety considerations, suitable hair loss types, and how to access LLLT devices and clinics in the UK.

Peter Attia HbA1c Target: How It Compares to NHS Guidelines

Weight Loss

min read

Peter Attia HbA1c Target: How It Compares to NHS Guidelines

Peter Attia's HbA1c target explained: how his 5.0–5.5% goal compares to NHS and NICE guidelines, what the evidence says, and practical steps to optimise your metabolic health.

Mounjaro

min read

Does Mounjaro Affect Fertility? UK Guidance for Pregnancy Planning

Does Mounjaro affect fertility? Discover what UK patients need to know about tirzepatide, pregnancy planning, contraception requirements, and reproductive health for both women and men.

Does Cauliflower Have Vitamin K? UK Evidence-Based Guide

Supplements

min read

Does Cauliflower Have Vitamin K? UK Evidence-Based Guide

Does cauliflower have vitamin K? Discover how much vitamin K cauliflower contains, why this nutrient matters for blood clotting and bone health, and what it means for warfarin users. Evidence-based UK guidance inside.

Does Building Muscle Increase Metabolism?

Weight Loss

min read

Does Building Muscle Increase Metabolism?

Find out how building muscle affects your metabolism. Discover the science behind muscle mass, resting metabolic rate, and realistic calorie-burning benefits.

Which Magnesium Makes You Poop: UK Guide to Laxative Forms

Supplements

min read

Which Magnesium Makes You Poop: UK Guide to Laxative Forms

Which magnesium makes you poop? Discover which magnesium supplements have laxative effects, recommended doses, safety considerations, and when to seek medical advice for constipation in the UK.

Can Stress Raise Blood Sugar in Type 2 Diabetes? UK Guide

Weight Loss

min read

Can Stress Raise Blood Sugar in Type 2 Diabetes? UK Guide

Can stress raise blood sugar in type 2 diabetes? Discover how stress hormones affect glucose levels, recognise stress-related spikes and learn evidence-based strategies to manage stress and improve diabetes control.

Bolt Guides

Featured

A Hair Loss Treatment Guide: UK Options, Safety, and NHS Advice

Weight loss

Safe HbA1c Levels for Surgery: UK Guidelines and Perioperative Advice

Liver-Friendly Chilli Recipe for Fatty Liver Disease Management

Are Spicy Foods Good for Fatty Liver? Evidence and Safety

GLP-1 Brands

Wegovy

Mounjaro

Different Strengths of Trulicity: Dosing Guide for Type 2 Diabetes

Saxenda and Bloating: Causes, Frequency & Relief

Can Rybelsus Cause Depression? Evidence and Guidance

Can Trulicity Be Put Back in the Fridge? UK Storage Guide

Men’s Health

Testosterone

Erectile dysfunction

Does Sublocade Cause Erectile Dysfunction? UK Medical Guide

Can Testosterone Treatment Increase Penis Size? Evidence and Guidance

How to Treat Rash From Testosterone Treatment: Expert Guide

What Will 3 Days Without Testogel Do to Me?

Browse all

Cod Liver Oil Side Effects: Safety Guide and UK Advice

Flaxseed and Omega-3 Fatty Acids: Benefits and Safety

Does Saxenda Lower Cholesterol? Evidence and Clinical Guidance

Vitamin K Lotion: Uses, Benefits, and Safety for Skin

Does Fatty Liver Disease Cause Jaundice? Symptoms and When to Seek Help

Can I Take Viagra with Fatty Liver? Safety and Dosing Guide

Do ACE Inhibitors Cause Erectile Dysfunction? Evidence and Management

Saxenda & Back Pain: Side Effects Explained

Does Red Light Therapy Work for Hair Loss? UK Evidence Guide

Peter Attia HbA1c Target: How It Compares to NHS Guidelines

Does Mounjaro Affect Fertility? UK Guidance for Pregnancy Planning

Does Cauliflower Have Vitamin K? UK Evidence-Based Guide

Does Building Muscle Increase Metabolism?

Which Magnesium Makes You Poop: UK Guide to Laxative Forms

Can Stress Raise Blood Sugar in Type 2 Diabetes? UK Guide

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