Bolt Guides

Expert insights on weight loss and more.

Featured

Mounjaro

min read

Mounjaro and High Ferritin: Causes, Investigation and Management

Can Mounjaro cause high ferritin levels? Discover the relationship between tirzepatide and elevated ferritin, underlying causes in diabetes and obesity patients, when to seek medical advice, and how to manage raised ferritin whilst continuing treatment safely.

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Weight loss

Read all on weight loss

Is It Possible to Gain Weight in a Calorie Deficit? UK Guide

Weight Loss

min read

Is It Possible to Gain Weight in a Calorie Deficit? UK Guide

Is it possible to gain weight in a calorie deficit? Discover the real reasons your weight may rise despite eating less — from water retention to medical conditions — with UK clinical guidance.

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.

Weight Loss

min read

400 Calorie Deficit: Weekly Weight Loss Explained With NHS Guidance

A 400 calorie deficit per day — what does it mean for weekly weight loss? Discover the science, NHS guidance, practical strategies, and factors that affect your results.

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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

Feeling Cold on Ozempic: Causes and Management

Feeling cold on Ozempic? Discover why some patients experience cold sensitivity, how common it is, practical management strategies, and when to contact your GP for further evaluation.

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Feeling Cold on Ozempic: Causes and Management

Lump After Ozempic Injection: What It Means & What to Do

GLP-1 Brands

min read

Lump After Ozempic Injection: What It Means & What to Do

Got a lump after your Ozempic injection? Learn what causes injection site lumps, how to prevent them with proper technique, and when to worry.

Weight Loss Pill Naltrexone: How Mysimba Works in the UK

GLP-1 Brands

min read

Weight Loss Pill Naltrexone: How Mysimba Works in the UK

Weight loss pill naltrexone (Mysimba) explained: how it works, who qualifies, dosage, side effects, and how to access it on the NHS or privately in the UK.

Rybelsus for Weight Loss: Evidence, Safety, and UK Prescribing Guidance

GLP-1 Brands

min read

Rybelsus for Weight Loss: Evidence, Safety, and UK Prescribing Guidance

Is Rybelsus a good weight loss pill? Learn what the evidence says about oral semaglutide for weight loss, how it compares to Wegovy, its side effects, and UK prescribing guidance.

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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.

Read erectile dysfunction guides

Does Tadalafil Raise PSA Levels? Clinical Evidence Explained

Erectile Dysfunction

min read

Does Tadalafil Raise PSA Levels? Clinical Evidence Explained

Does tadalafil raise PSA levels? Discover what clinical evidence reveals about tadalafil's effect on prostate-specific antigen testing and why this matters for men monitoring prostate health whilst taking this medication.

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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.

Can I Use Testogel at Night? Timing and Application Guide

Testosterone

min read

Can I Use Testogel at Night? Timing and Application Guide

Can you use Testogel at night instead of morning? Discover when to apply testosterone gel, how timing affects absorption, safety considerations for evening use, and expert guidance on optimising your treatment routine.

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.

Does Ozempic Help PCOS? Evidence and UK Treatment Options

GLP-1 Brands

min read

Does Ozempic Help PCOS? Evidence and UK Treatment Options

Does Ozempic help PCOS? Explore the evidence for using Ozempic in polycystic ovary syndrome, including potential benefits, risks, and NHS-approved PCOS treatments. Expert UK guidance on managing PCOS metabolic symptoms.

David Sinclair Resveratrol Dosage: UK Safety Guidance and Evidence

Supplements

min read

David Sinclair Resveratrol Dosage: UK Safety Guidance and Evidence

David Sinclair resveratrol dosage explained: learn about his 1,000 mg daily regimen, UK safety limits (150 mg/day), clinical evidence, side effects, and practical guidance for safe supplementation in the UK.

Is GIP an Incretin? Role in Diabetes Management

Weight Loss

min read

Is GIP an Incretin? Role in Diabetes Management

Is GIP an incretin hormone? Discover how glucose-dependent insulinotropic polypeptide (GIP) regulates insulin secretion, its role in diabetes management, and the clinical evidence behind dual GIP/GLP-1 therapies like tirzepatide.

Monounsaturated and Polyunsaturated Fats: Health Benefits and UK Dietary Guidance

Supplements

min read

Monounsaturated and Polyunsaturated Fats: Health Benefits and UK Dietary Guidance

Discover how monounsaturated and polyunsaturated fats support heart health and why UK guidelines recommend them. Learn which foods provide these essential fats, daily intake recommendations, and practical tips for replacing saturated fats in your diet with evidence-based advice from NHS and NICE guidance.

How Often Do You Take Trulicity? Weekly Dosing Guide

GLP-1 Brands

min read

How Often Do You Take Trulicity? Weekly Dosing Guide

Discover how often you take Trulicity (dulaglutide) for type 2 diabetes. Learn about the once-weekly dosing schedule, what to do if you miss a dose, how to change your injection day safely, and essential guidance on maintaining consistent treatment for optimal blood glucose control.

Can Saxenda Cause IBS? UK Guide to Digestive Side Effects

GLP-1 Brands

min read

Can Saxenda Cause IBS? UK Guide to Digestive Side Effects

Can Saxenda cause IBS? Discover how this GLP-1 weight-loss medication affects your digestive system, whether it triggers IBS symptoms, and when to seek medical advice. Expert UK guidance on managing gastrointestinal side effects.

Is Prednisolone Good for Fatty Liver Disease?

Weight Loss

min read

Is Prednisolone Good for Fatty Liver Disease?

Is prednisolone good for fatty liver? Discover why this corticosteroid is not recommended for hepatic steatosis, how it may worsen the condition, and what evidence-based treatments are available for fatty liver disease in the UK.

Ozempic Teeth Side Effects: Causes, Prevention & When to Seek Help

GLP-1 Brands

min read

Ozempic Teeth Side Effects: Causes, Prevention & When to Seek Help

Ozempic teeth side effects explained: discover why GLP-1 medications may indirectly affect oral health, evidence-based prevention strategies, and when to seek dental or medical advice for tooth problems whilst taking semaglutide.

Cost

min read

Curely Wegovy Cost: Private Prescription Pricing and NHS Comparison

Discover Curely Wegovy cost details, including what's included in private prescriptions, NHS vs private pricing comparisons, and payment options for this weight management treatment in the UK.

Does Sildenafil Help With Anxiety? UK Medical Guide

Erectile Dysfunction

min read

Does Sildenafil Help With Anxiety? UK Medical Guide

Does sildenafil help with anxiety? Discover how Viagra works for erectile dysfunction, its indirect psychological benefits, and when to seek professional help for anxiety and sexual health concerns in the UK.

Can You Gain Weight on Trulicity? UK Guide

GLP-1 Brands

min read

Can You Gain Weight on Trulicity? UK Guide

Can you gain weight on Trulicity? Discover why most people lose weight on this diabetes medication, what causes unexpected weight gain in some patients, and when to speak to your GP about weight changes whilst taking dulaglutide.

Does Magnesium Help Fatty Liver? Evidence and Guidance

Weight Loss

min read

Does Magnesium Help Fatty Liver? Evidence and Guidance

Does magnesium help fatty liver disease? Discover what current research reveals about magnesium's role in NAFLD, evidence-based dietary strategies, and when supplementation may be appropriate for liver health.

GLP-1 Brands

min read

Can Saxenda Cause IBS? UK Guide to Digestive Side Effects

How Long Does Vitamin D Stay in Your System?

Supplements

min read

How Long Does Vitamin D Stay in Your System?

How long does vitamin D stay in your system? Discover the half-life, storage mechanisms, and factors affecting vitamin D duration in your body. Learn about NHS supplementation guidance and when to seek medical advice for deficiency.

Medical Term for Watery Eyes Due to Allergies: Allergic Conjunctivitis Explained

Supplements

min read

Medical Term for Watery Eyes Due to Allergies: Allergic Conjunctivitis Explained

The medical term for watery eyes due to allergies is allergic conjunctivitis. Learn about causes, symptoms, NHS treatments, and when to see a doctor in this expert UK guide.

Bolt Guides

Featured

Mounjaro and High Ferritin: Causes, Investigation and Management

Weight loss

Is It Possible to Gain Weight in a Calorie Deficit? UK Guide

Calorie Deficit on Holiday: Practical Strategies That Actually Work

400 Calorie Deficit: Weekly Weight Loss Explained With NHS Guidance

GLP-1 Brands

Wegovy

Mounjaro

Feeling Cold on Ozempic: Causes and Management

Lump After Ozempic Injection: What It Means & What to Do

Weight Loss Pill Naltrexone: How Mysimba Works in the UK

Rybelsus for Weight Loss: Evidence, Safety, and UK Prescribing Guidance

Men’s Health

Testosterone

Erectile dysfunction

Does Tadalafil Raise PSA Levels? Clinical Evidence Explained

Calorie Deficit Effect on Testosterone: What the Evidence Shows

Can I Use Testogel at Night? Timing and Application Guide

How to Treat Rash From Testosterone Treatment: Expert Guide

Browse all

Does Ozempic Help PCOS? Evidence and UK Treatment Options

David Sinclair Resveratrol Dosage: UK Safety Guidance and Evidence

Is GIP an Incretin? Role in Diabetes Management

Monounsaturated and Polyunsaturated Fats: Health Benefits and UK Dietary Guidance

How Often Do You Take Trulicity? Weekly Dosing Guide

Can Saxenda Cause IBS? UK Guide to Digestive Side Effects

Is Prednisolone Good for Fatty Liver Disease?

Ozempic Teeth Side Effects: Causes, Prevention & When to Seek Help

Curely Wegovy Cost: Private Prescription Pricing and NHS Comparison

Does Sildenafil Help With Anxiety? UK Medical Guide

Can You Gain Weight on Trulicity? UK Guide

Does Magnesium Help Fatty Liver? Evidence and Guidance

Can Saxenda Cause IBS? UK Guide to Digestive Side Effects

How Long Does Vitamin D Stay in Your System?

Medical Term for Watery Eyes Due to Allergies: Allergic Conjunctivitis Explained

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