Bolt Guides

Expert insights on weight loss and more.

Featured

Wegovy

min read

Wegovy Pill UK: Approval, Eligibility, Dosing and Safety

The Wegovy pill (oral semaglutide) is now MHRA-approved in the UK. Who can take it, the dosing schedule, how to take it, and how it compares with the injection.

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Weight loss

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Weight Loss

min read

Weight Loss Pills and Alcohol: Risks, Interactions and UK Guidance

How alcohol interacts with UK weight loss medications including Wegovy, the oral Wegovy pill, Mysimba and orlistat: key risks and when to seek advice.

Bio-Rad HPLC HbA1c Testing: NHS Laboratory Guide and NICE Guidance

Weight Loss

min read

Bio-Rad HPLC HbA1c Testing: NHS Laboratory Guide and NICE Guidance

Bio-Rad HPLC HbA1c testing explained: how ion-exchange chromatography works, NHS laboratory use, NICE diagnostic thresholds, haemoglobin variant interference, and MHRA compliance guidance.

Gastric Sleeve Surgery: How It Works, Eligibility and Long-Term Outcomes

Weight Loss

min read

Gastric Sleeve Surgery: How It Works, Eligibility and Long-Term Outcomes

Gastric sleeve surgery explained: how sleeve gastrectomy works, NHS eligibility criteria, what to expect before and after surgery, risks, and long-term outcomes. Evidence-based UK guidance.

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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

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

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.

Retatrutide in Pill Form: What UK Patients Need to Know

GLP-1 Brands

min read

Retatrutide in Pill Form: What UK Patients Need to Know

Can you get retatrutide in pill form? Find out why no oral version exists yet, how peptide medicines work, and which licensed weight loss treatments are available in the UK right now.

How to Eat on Retatrutide: UK Dietary and Safety Guide

GLP-1 Brands

min read

How to Eat on Retatrutide: UK Dietary and Safety Guide

How to eat on retatrutide: expert UK dietary guidance covering meal patterns, foods to prioritise, managing nausea, and staying well-nourished during treatment. Read now.

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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

Erectile Dysfunction

min read

Does Rybelsus Cause Erectile Dysfunction?

Rybelsus is not listed as a cause of erectile dysfunction. Explore the UK evidence on semaglutide and sexual health, and how to manage ED with diabetes.

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Testosterone

min read

Does Testosterone Treatment Cause Hunger? UK Guide to TRT and Appetite

Does testosterone treatment cause hunger? Discover how TRT may influence appetite, the mechanisms involved, and practical strategies to manage hunger changes during testosterone therapy in the UK.

Can Testogel Make You Lethargic? Causes and Management

Testosterone

min read

Can Testogel Make You Lethargic? Causes and Management

Can Testogel make you feel tired? Discover why testosterone replacement therapy may cause lethargy, key warning signs to watch for, and evidence-based strategies to manage fatigue during TRT in the UK.

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.

Hair Loss

min read

Scalp Massage and Hair Loss: Evidence, Techniques, and UK Treatments

Scalp massage and hair loss: discover what the evidence says, which hair loss types may benefit, how to massage safely, and how it fits with NHS-recognised treatments like minoxidil and finasteride.

Retatrutide and UTIs: What Current Clinical Evidence Shows

GLP-1 Brands

min read

Retatrutide and UTIs: What Current Clinical Evidence Shows

Can retatrutide cause UTIs? Explore the current clinical evidence on retatrutide's side effects, its link to urinary tract infections, and when to seek medical advice during a trial.

Gastric Sleeve Meal Ideas: A Complete UK Recovery Eating Guide

Weight Loss

min read

Gastric Sleeve Meal Ideas: A Complete UK Recovery Eating Guide

Gastric sleeve meal ideas for every stage of recovery — from clear fluids to regular foods. Discover practical, NHS-aligned eating tips, nutritional guidance, and foods to avoid after sleeve gastrectomy.

Berberine on Empty Stomach: Timing, Dosage and Safety Guide

Supplements

min read

Berberine on Empty Stomach: Timing, Dosage and Safety Guide

Should you take berberine on an empty stomach? Discover evidence-based guidance on optimal timing, dosage, side effects, and safety considerations for berberine supplementation in the UK.

Testosterone

min read

Can Testogel Cause Fatigue? Understanding Tiredness During Testosterone Treatment

Can Testogel cause fatigue? Discover why some men experience tiredness during testosterone replacement therapy, when fatigue indicates a problem, and how to optimise treatment for better energy levels and wellbeing.

Retatrutide on a Plane: UK Rules for Flying with This Injectable

GLP-1 Brands

min read

Retatrutide on a Plane: UK Rules for Flying with This Injectable

Retatrutide on a plane — find out the UK rules for flying with this injectable medication, including documentation, storage, airport security, and international travel advice.

Can You Eat Pizza in a Calorie Deficit and Still Lose Weight?

Weight Loss

min read

Can You Eat Pizza in a Calorie Deficit and Still Lose Weight?

Can you eat pizza in a calorie deficit? Yes — find out how pizza fits into a weight loss plan, how many calories different types contain, and practical tips for enjoying it without derailing your progress.

Best Detox Tea for Fatty Liver: Evidence and Safe Alternatives

Weight Loss

min read

Best Detox Tea for Fatty Liver: Evidence and Safe Alternatives

Discover the truth about detox teas for fatty liver disease. Learn which herbal teas are safe, what the research actually shows, and the evidence-based lifestyle changes proven to improve liver health according to NICE guidelines and UK medical experts.

Hair Loss

min read

Best HRT for Hair Loss: UK Guide to Menopausal Hair Thinning

Best HRT for hair loss in women: discover which oestrogen formulations and progestogens may help with menopausal hair thinning, what the evidence shows, and how to discuss your options with a UK GP or specialist.

HbA1c & Diabetes: Diagnosis, Targets & Improving Levels

Weight Loss

min read

HbA1c & Diabetes: Diagnosis, Targets & Improving Levels

Understand your HbA1c result: NHS diagnostic thresholds, what affects accuracy, and practical ways to improve your levels through lifestyle and treatment.

How Much Krill Oil Per Day: UK Dosage Guidance

Supplements

min read

How Much Krill Oil Per Day: UK Dosage Guidance

Discover how much krill oil per day you should take based on UK guidance and clinical evidence. Learn about recommended doses, EPA/DHA content, safety considerations, and how to choose quality supplements for optimal omega-3 intake.

Are Metabolism Boosters Safe? Risks and Evidence-Based Alternatives

Weight Loss

min read

Are Metabolism Boosters Safe? Risks and Evidence-Based Alternatives

Are metabolism boosters safe? Discover the risks, side effects, and evidence behind thermogenic supplements. Learn about safer, clinically proven alternatives to support your metabolic health and when to seek medical advice.

Saxenda and Alcohol: Safety Guide for Patients

GLP-1 Brands

min read

Saxenda and Alcohol: Safety Guide for Patients

Can you drink alcohol whilst taking Saxenda? Learn about the risks, effects on weight loss, and practical safety advice from UK clinical guidance.

Can You Eat Calamari When Pregnant? NHS Safety Guidance

Supplements

min read

Can You Eat Calamari When Pregnant? NHS Safety Guidance

Can you eat calamari when pregnant? Discover NHS guidance on safely enjoying calamari during pregnancy, including nutritional benefits, mercury levels, proper cooking methods, and essential food safety tips for expectant mothers.

Why Does Tadalafil Cause a Stuffy Nose? Causes and Management

Erectile Dysfunction

min read

Why Does Tadalafil Cause a Stuffy Nose? Causes and Management

Discover why tadalafil causes a stuffy nose, how common this side effect is, and practical strategies to manage nasal congestion whilst taking this PDE5 inhibitor for erectile dysfunction or benign prostatic hyperplasia.

Bolt Guides

Featured

Wegovy Pill UK: Approval, Eligibility, Dosing and Safety

Weight loss

Weight Loss Pills and Alcohol: Risks, Interactions and UK Guidance

Bio-Rad HPLC HbA1c Testing: NHS Laboratory Guide and NICE Guidance

Gastric Sleeve Surgery: How It Works, Eligibility and Long-Term Outcomes

GLP-1 Brands

Wegovy

Mounjaro

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

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

Retatrutide in Pill Form: What UK Patients Need to Know

How to Eat on Retatrutide: UK Dietary and Safety Guide

Men’s Health

Testosterone

Erectile dysfunction

Does Rybelsus Cause Erectile Dysfunction?

Does Testosterone Treatment Cause Hunger? UK Guide to TRT and Appetite

Can Testogel Make You Lethargic? Causes and Management

Can Testosterone Treatments Cause Swollen Feet? UK Guide

Browse all

Scalp Massage and Hair Loss: Evidence, Techniques, and UK Treatments

Retatrutide and UTIs: What Current Clinical Evidence Shows

Gastric Sleeve Meal Ideas: A Complete UK Recovery Eating Guide

Berberine on Empty Stomach: Timing, Dosage and Safety Guide

Can Testogel Cause Fatigue? Understanding Tiredness During Testosterone Treatment

Retatrutide on a Plane: UK Rules for Flying with This Injectable

Can You Eat Pizza in a Calorie Deficit and Still Lose Weight?

Best Detox Tea for Fatty Liver: Evidence and Safe Alternatives

Best HRT for Hair Loss: UK Guide to Menopausal Hair Thinning

HbA1c & Diabetes: Diagnosis, Targets & Improving Levels

How Much Krill Oil Per Day: UK Dosage Guidance

Are Metabolism Boosters Safe? Risks and Evidence-Based Alternatives

Saxenda and Alcohol: Safety Guide for Patients

Can You Eat Calamari When Pregnant? NHS Safety Guidance

Why Does Tadalafil Cause a Stuffy Nose? Causes and Management