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.

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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.

Does Smoking Affect Fatty Liver? Evidence and Risks

Weight Loss

min read

Does Smoking Affect Fatty Liver? Evidence and Risks

Does smoking affect fatty liver? Discover how tobacco use worsens hepatic steatosis, increases liver scarring, and what you can do to protect your liver health through evidence-based smoking cessation strategies.

Weight Loss

min read

Weight Loss on a 500 Calorie Deficit Per Day: What to Expect

A 500 calorie deficit per day can support safe, steady weight loss — but how much can you realistically expect to lose? Discover NHS-aligned guidance, practical tips, and when to see your GP.

Does Victoza Cause Diarrhoea? Causes & Management

GLP-1 Brands

min read

Does Victoza Cause Diarrhoea? Causes & Management

Diarrhoea affects more than 1 in 10 Victoza users. Learn why liraglutide causes this side effect, how to manage it, and when to contact your GP.

Is Zinc Water Soluble? Understanding Zinc Supplement Absorption

Supplements

min read

Is Zinc Water Soluble? Understanding Zinc Supplement Absorption

Is zinc water soluble? Discover how pure zinc differs from zinc supplements, which zinc compounds dissolve in water, and how solubility affects absorption and bioavailability in the body.

Coming Off Ozempic Cold Turkey: Risks and Safe Discontinuation

GLP-1 Brands

min read

Coming Off Ozempic Cold Turkey: Risks and Safe Discontinuation

Considering coming off Ozempic cold turkey? Discover what happens when you stop suddenly, the risks of unplanned discontinuation, and how to safely stop Ozempic with medical guidance to protect your health and maintain benefits.

Can Famotidine Cause Gynaecomastia? Evidence, Risks and Advice

Weight Loss

min read

Can Famotidine Cause Gynaecomastia? Evidence, Risks and Advice

Can famotidine cause gynaecomastia? Learn what the clinical evidence shows, how famotidine compares to cimetidine, and when to see a GP about breast changes.

Wegovy

min read

Wegovy and Phentermine Together: UK Safety Guide

Find out why combining Wegovy and phentermine isn't recommended in the UK, what the risks are, and which evidence-based alternatives are available instead.

Magnesium and Blood Pressure: Evidence, Intake and Safety

Supplements

min read

Magnesium and Blood Pressure: Evidence, Intake and Safety

Discover how magnesium and blood pressure are connected. Learn about the evidence for magnesium supplementation, recommended intake, food sources, and safety considerations for managing hypertension in line with UK clinical guidance.

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.

Bread for Calorie Deficit: Best Choices and Practical Tips

Weight Loss

min read

Bread for Calorie Deficit: Best Choices and Practical Tips

Bread for a calorie deficit doesn't have to be off the menu. Discover which breads are best for weight loss, how to compare calories and fibre, and practical tips for including bread in a calorie-controlled diet.

How to Prevent Hair Thinning & Loss: UK Guide

Hair Loss

min read

How to Prevent Hair Thinning & Loss: UK Guide

Prevent hair thinning with evidence-based tips, minoxidil advice, nutrition guidance, and NHS-aligned advice on when to see a GP.

Does Decline Bench Press Help Gynaecomastia? UK Medical Guide

Weight Loss

min read

Does Decline Bench Press Help Gynaecomastia? UK Medical Guide

Does decline bench press help gynaecomastia? Learn whether chest exercises can reduce enlarged male breast tissue, what the NHS recommends, and when to seek medical advice.

Does Blood Donation Affect HbA1c Results? UK Guidance Explained

Weight Loss

min read

Does Blood Donation Affect HbA1c Results? UK Guidance Explained

Does blood donation affect HbA1c results? Find out how whole-blood donation can cause falsely low HbA1c readings, how long the effect lasts, and what UK guidance recommends for accurate diabetes monitoring.

Weight Loss

min read

Grenade Pills Weight Loss: Ingredients, Safety, and NHS Alternatives

Grenade pills weight loss claims reviewed: ingredients, safety risks, MHRA guidance, and NHS-approved alternatives. Find out what's really in Grenade Thermo Detonator before you buy.

How Fast Do You Lose Weight After Gastric Sleeve Surgery?

Weight Loss

min read

How Fast Do You Lose Weight After Gastric Sleeve Surgery?

How fast do you lose weight after gastric sleeve surgery? Discover the typical week-by-week timeline, NHS dietary guidance, factors affecting your rate of loss, and when to contact your bariatric team.

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

Does Smoking Affect Fatty Liver? Evidence and Risks

Weight Loss on a 500 Calorie Deficit Per Day: What to Expect

Does Victoza Cause Diarrhoea? Causes & Management

Is Zinc Water Soluble? Understanding Zinc Supplement Absorption

Coming Off Ozempic Cold Turkey: Risks and Safe Discontinuation

Can Famotidine Cause Gynaecomastia? Evidence, Risks and Advice

Wegovy and Phentermine Together: UK Safety Guide

Magnesium and Blood Pressure: Evidence, Intake and Safety

Do Bananas Slow Metabolism? What the Evidence Says

Bread for Calorie Deficit: Best Choices and Practical Tips

How to Prevent Hair Thinning & Loss: UK Guide

Does Decline Bench Press Help Gynaecomastia? UK Medical Guide

Does Blood Donation Affect HbA1c Results? UK Guidance Explained

Grenade Pills Weight Loss: Ingredients, Safety, and NHS Alternatives

How Fast Do You Lose Weight After Gastric Sleeve Surgery?