Bolt Guides

How do weight loss pills work? Discover the science behind UK-licensed anti-obesity medications including orlistat and semaglutide, NHS eligibility criteria, side effects, and how to talk to your GP.

Weight Loss

min read

Weight Loss Pills & Shakes: UK Safety Guide

Orlistat, meal replacement shakes and the new oral Wegovy pill: NHS-aligned guidance on evidence, MHRA safety, side effects and when to see your GP.

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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

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

Is Rybelsus a good weight loss pill? How oral semaglutide compares to the new Wegovy pill (25 mg), the evidence, side effects, and UK prescribing guidance.

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

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 and side effects, plus how it compares with the new oral Wegovy pill.

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

GLP-1 Brands

min read

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

1 month retatrutide results explained: what Phase 2 trial data shows about early weight loss, common side effects, realistic expectations, and UK regulatory status in 2025.

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

GLP-1 Brands

min read

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

How much bacteriostatic water to mix with retatrutide — understand reconstitution principles, UK regulatory status, safety risks, and when to seek medical advice before use.

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 Ibuprofen Affect Erectile Dysfunction? UK Evidence Review

Does ibuprofen affect erectile dysfunction? Explore the evidence on NSAIDs and ED, understand established causes of erectile problems, learn which medications can impact sexual function, and discover when to seek medical advice from your GP.

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Testosterone

min read

Can Testosterone Treatments Cause Swollen Feet? UK Guide

Can testosterone treatments cause swollen feet? Discover how TRT affects fluid retention, when to seek medical advice, management strategies, and alternative causes of peripheral oedema during testosterone therapy.

Testosterone

min read

Can You Take Testosterone After Prostate Cancer Treatment? UK Guidance

Can you take testosterone after prostate cancer treatment? Discover current UK guidance, eligibility criteria, risks and benefits, and essential monitoring requirements for testosterone replacement therapy following prostate cancer.

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.

Best Vegetables for Fatty Liver: Evidence-Based UK Guide

Weight Loss

min read

Best Vegetables for Fatty Liver: Evidence-Based UK Guide

Discover the best vegetables for fatty liver disease, including cruciferous greens, leafy vegetables, and beetroot. Evidence-based guidance on how vegetables support liver health, reduce inflammation, and aid weight management for NAFLD. UK clinical advice aligned with NICE and NHS recommendations.

Headaches from Calorie Deficit: Causes, Prevention and NHS Guidance

Weight Loss

min read

Headaches from Calorie Deficit: Causes, Prevention and NHS Guidance

Discover why calorie deficits trigger headaches and how to prevent them. Evidence-based NHS guidance on managing headaches during weight loss, when to seek medical advice, and safe strategies for sustainable calorie reduction without compromising your health.

Does Tadalafil Give You Headaches? UK Clinical Guidance

Erectile Dysfunction

min read

Does Tadalafil Give You Headaches? UK Clinical Guidance

Does tadalafil give you headaches? Discover how common headaches are with tadalafil, why they occur, practical management strategies, and when to seek medical advice. Evidence-based UK guidance for patients.

ESG vs Gastric Sleeve Long-Term Results: UK Clinical Comparison

Weight Loss

min read

ESG vs Gastric Sleeve Long-Term Results: UK Clinical Comparison

ESG vs gastric sleeve long-term results compared: weight loss outcomes, metabolic benefits, risks, and recovery. UK-focused guidance from NICE, BOMSS, and MHRA to help you choose.

Erectile Dysfunction

min read

Does Methylprednisolone Cause Erectile Dysfunction? UK Medical Guide

Does methylprednisolone cause erectile dysfunction? Discover how this corticosteroid may affect sexual function, the mechanisms involved, and practical management strategies. Expert UK medical guidance on addressing sexual health concerns during methylprednisolone therapy.

Weight Loss

min read

Do Weight Loss Injections Cause Pancreatitis? UK Evidence and Safety

Do weight loss injections cause pancreatitis? Explore the evidence on GLP-1 receptor agonists like Wegovy and Saxenda, understand the risks, recognise warning symptoms, and learn essential safety precautions for UK patients.

What Is Omega-3 Acid? Essential Facts and Health Benefits

Supplements

min read

What Is Omega-3 Acid? Essential Facts and Health Benefits

Discover what omega-3 acids are and why they're essential for your health. Learn about EPA, DHA, and ALA, their roles in cardiovascular and brain function, plus NHS-recommended dietary sources and supplementation guidance for optimal wellbeing.

Powder Retatrutide: How Long It Lasts, Safety, and UK Regulations

GLP-1 Brands

min read

Powder Retatrutide: How Long It Lasts, Safety, and UK Regulations

How long does powder retatrutide last? Learn about retatrutide's estimated half-life, pharmacokinetics, UK regulatory status, and the serious risks of unregulated powder forms sold online.

Can Paracetamol Cause Fatty Liver? UK Medical Evidence

Weight Loss

min read

Can Paracetamol Cause Fatty Liver? UK Medical Evidence

Can paracetamol cause fatty liver disease? Discover what UK medical evidence reveals about paracetamol and liver health, safe dosing guidelines, and when to seek medical advice for NAFLD concerns.

Allergan Gastric Band MRI Safety: What UK Patients Must Know

Weight Loss

min read

Allergan Gastric Band MRI Safety: What UK Patients Must Know

Allergan gastric band MRI safety explained: understand MR Conditional classifications, key precautions, MHRA guidance, and how to inform your NHS care team before any MRI scan.

Is Tadalafil Bad for Liver Health? UK Safety Guide

Erectile Dysfunction

min read

Is Tadalafil Bad for Liver Health? UK Safety Guide

Is tadalafil bad for liver health? Discover how this erectile dysfunction medication is metabolised, its safety profile in liver disease, UK prescribing guidelines, and when to seek medical advice.

Hair Loss

min read

Does Mielle Rosemary Oil Cause Hair Loss? Evidence and Advice

Does Mielle Rosemary Oil cause hair loss? Discover what the evidence says, potential side effects, scalp reactions to watch for, and when to see a GP or dermatologist in the UK.

How Much B12 Daily: UK Recommended Intake by Age

Supplements

min read

How Much B12 Daily: UK Recommended Intake by Age

How much B12 daily should you take? Discover UK-recommended vitamin B12 intake for all ages, from infants to older adults. Learn when you need more B12, signs of deficiency, dietary sources, and supplementation guidance based on NHS and NICE recommendations.

What Will Testogel Do? Benefits, Effects and Safety Guide

Testosterone

min read

What Will Testogel Do? Benefits, Effects and Safety Guide

Discover what Testogel does for men with testosterone deficiency. Learn how this transdermal gel works, expected benefits, timeline of effects, potential side effects, monitoring requirements, and essential safety precautions for testosterone replacement therapy in the UK.

Methotrexate and Allergy Medication: What Is Safe to Take?

Supplements

min read

Methotrexate and Allergy Medication: What Is Safe to Take?

Methotrexate and allergy medication: find out which antihistamines, nasal sprays, and corticosteroids are safe to use together, what to avoid, and what NICE and MHRA guidance recommends for UK patients.

Bolt Guides

Featured

Oral Incretin Mimetics Available in the UK

Weight loss

Oral Incretin Mimetics Available in the UK

How Weight Loss Pills Work: UK Guide to Anti-Obesity Medications

Weight Loss Pills & Shakes: UK Safety Guide

GLP-1 Brands

Wegovy

Mounjaro

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

Weight Loss Pill Naltrexone: How Mysimba Works in the UK

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

Men’s Health

Testosterone

Erectile dysfunction

Does Ibuprofen Affect Erectile Dysfunction? UK Evidence Review

Can Testosterone Treatments Cause Swollen Feet? UK Guide

Can You Take Testosterone After Prostate Cancer Treatment? UK Guidance

What Will 3 Days Without Testogel Do to Me?

Browse all

Best Vegetables for Fatty Liver: Evidence-Based UK Guide

Headaches from Calorie Deficit: Causes, Prevention and NHS Guidance

Does Tadalafil Give You Headaches? UK Clinical Guidance

ESG vs Gastric Sleeve Long-Term Results: UK Clinical Comparison

Does Methylprednisolone Cause Erectile Dysfunction? UK Medical Guide

Do Weight Loss Injections Cause Pancreatitis? UK Evidence and Safety

What Is Omega-3 Acid? Essential Facts and Health Benefits

Powder Retatrutide: How Long It Lasts, Safety, and UK Regulations

Can Paracetamol Cause Fatty Liver? UK Medical Evidence

Allergan Gastric Band MRI Safety: What UK Patients Must Know

Is Tadalafil Bad for Liver Health? UK Safety Guide

Does Mielle Rosemary Oil Cause Hair Loss? Evidence and Advice

How Much B12 Daily: UK Recommended Intake by Age

What Will Testogel Do? Benefits, Effects and Safety Guide

Methotrexate and Allergy Medication: What Is Safe to Take?

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