Bolt Guides

Expert insights on weight loss and more.

Featured

Wegovy

min read

Switching From Wegovy Injection to Pill: UK Prescribing Guide

Switching from Wegovy injection to pill? Learn how the UK-approved transition from 2.4 mg weekly injections to 25 mg daily tablets works, who it suits, and what to expect.

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Weight loss

Read all on weight loss

POTS After Bariatric Surgery: Causes, Symptoms and NHS Treatment

Weight Loss

min read

POTS After Bariatric Surgery: Causes, Symptoms and NHS Treatment

POTS after bariatric surgery: understand why it develops, how to recognise symptoms, NHS treatment options, lifestyle adjustments, and when to seek urgent medical advice.

Blood Glucose Readings for Non-Diabetics: UK Normal Ranges Explained

Weight Loss

min read

Blood Glucose Readings for Non-Diabetics: UK Normal Ranges Explained

Blood glucose readings for non-diabetics explained: discover normal UK ranges, how tests work, what affects your results, and when to see your GP. Evidence-based NHS guidance.

How to Reverse a 5.8% HbA1c: NHS-Backed Lifestyle Advice

Weight Loss

min read

How to Reverse a 5.8% HbA1c: NHS-Backed Lifestyle Advice

How to reverse a 5.8% HbA1c with NHS-backed diet, exercise, and lifestyle advice. Understand what your result means, how long changes take, and when to see your GP.

Read all on weight loss

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

Retatrutide Injections: UK Guide to Administration, Dosing, and Safety

Retatrutide injections explained: learn how this investigational triple agonist is administered in clinical trials, including technique, dosing, storage, and UK safety guidance.

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Retatrutide Injections: UK Guide to Administration, Dosing, and Safety

Retatrutide: What It Is Made Of and How It Works

GLP-1 Brands

min read

Retatrutide: What It Is Made Of and How It Works

Retatrutide is a synthetic triple receptor agonist peptide targeting GLP-1, GIP, and glucagon receptors. Learn how it works, what it's made of, and its current UK regulatory status.

Feeling Cold on Retatrutide: Causes, Management, and When to Seek Help

GLP-1 Brands

min read

Feeling Cold on Retatrutide: Causes, Management, and When to Seek Help

Feeling cold on retatrutide? Learn why this happens, how common it is in clinical trials, when to seek medical advice, and practical tips to manage cold sensations safely.

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.

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 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

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.

Testosterone

min read

Does Testosterone Treatment Cause Muscle Pain? UK Evidence & Guidance

Does testosterone treatment cause muscle pain? Discover the evidence on muscle discomfort during TRT, including causes, when to seek help, and how to manage symptoms safely. Expert UK guidance for patients and clinicians.

How Much Testogel Should a Man Use? UK Dosage Guide

Testosterone

min read

How Much Testogel Should a Man Use? UK Dosage Guide

How much Testogel should a man use? Discover recommended starting doses, how to adjust treatment based on testosterone levels, proper application techniques, and essential safety guidance for men prescribed this testosterone replacement therapy in the UK.

Cost

min read

Wegovy NHS Cost: Eligibility, Prescription Charges & Access

Discover Wegovy NHS cost, eligibility criteria, and how to access this weight management medication through the NHS. Learn about prescription charges, specialist referral pathways, and how NHS provision compares to private costs exceeding £200 monthly.

Supplements

min read

Omega-3 Fatty Acid Sources: Fish, Plants & Supplements

Explore the best omega-3 sources — oily fish, plant-based foods, and supplements. Includes NHS guidance, daily intake advice, and tips to meet your needs.

Type 2 Diabetes and Diarrhoea: Causes, Medications & Management

Weight Loss

min read

Type 2 Diabetes and Diarrhoea: Causes, Medications & Management

Discover why type 2 diabetes and diarrhoea are linked, which medications cause bowel symptoms, and how to manage diarrhoea whilst controlling blood sugar. Expert UK guidance on diabetic enteropathy, red flag symptoms, and when to see your GP.

Erectile Dysfunction

min read

Are Goji Berries Good for Erectile Dysfunction? Evidence Review

Are goji berries good for erectile dysfunction? Discover what the evidence says about goji berries for ED, explore proven treatments recommended by NICE, and learn when to seek medical advice for erectile problems.

How Much Testogel to Use: Dosage Guidelines and Application

Testosterone

min read

How Much Testogel to Use: Dosage Guidelines and Application

Learn how much Testogel to use for testosterone replacement therapy. Discover standard dosing guidelines, application instructions, dose adjustment protocols based on blood tests, and common mistakes to avoid for safe, effective treatment.

Hair Loss

min read

Does Mirtazapine Cause Hair Loss? UK Guide to This Side Effect

Does mirtazapine cause hair loss? Learn how common this rare side effect is, why it happens, what UK guidelines recommend, and what to do if you notice hair thinning on mirtazapine.

Can Alcohol Cause Gynaecomastia? Causes, Treatment and NHS Advice

Weight Loss

min read

Can Alcohol Cause Gynaecomastia? Causes, Treatment and NHS Advice

Can alcohol cause gynaecomastia? Learn how heavy drinking disrupts oestrogen and testosterone, its link to enlarged male breast tissue, NHS treatment options, and when to see a GP.

Evening Primrose Oil for Gynaecomastia: Evidence, Risks, and UK Guidance

Weight Loss

min read

Evening Primrose Oil for Gynaecomastia: Evidence, Risks, and UK Guidance

Evening primrose oil for gynaecomastia — does it work? Explore the evidence, risks, drug interactions, and UK clinical guidance on managing enlarged male breast tissue safely.

Can Retatrutide Cause Depression? Evidence, Risks, and Guidance

GLP-1 Brands

min read

Can Retatrutide Cause Depression? Evidence, Risks, and Guidance

Can retatrutide cause depression? Explore what Phase 2 trial data shows, how it compares to licensed GLP-1 therapies, who may be at risk, and when to contact your GP or trial team.

Benefits of NAD Injections: Evidence, Safety and UK Guidance

Supplements

min read

Benefits of NAD Injections: Evidence, Safety and UK Guidance

Discover the benefits of NAD injections, including potential effects on energy, cognitive function, and cellular health. Learn about safety considerations, UK regulatory status, and what the evidence really shows about this unlicensed wellness therapy.

Gastric Sleeve for PCOS: NHS Eligibility, Risks, and Alternatives

Weight Loss

min read

Gastric Sleeve for PCOS: NHS Eligibility, Risks, and Alternatives

Gastric sleeve for PCOS: find out how sleeve gastrectomy can improve PCOS symptoms, who qualifies on the NHS, surgical risks, fertility considerations, and alternative treatments.

Cod Liver Oil Benefits, Uses & Safety Guide

Supplements

min read

Cod Liver Oil Benefits, Uses & Safety Guide

Find out what cod liver oil is good for, from heart health to bone strength. Learn about vitamins A and D content, safe dosage, and who should avoid it.

Mounjaro

min read

B12 Shots and Mounjaro: Safety, Benefits and Considerations

Can you safely combine B12 shots and Mounjaro? Discover the compatibility, benefits, and safety considerations of using vitamin B12 injections alongside Mounjaro for diabetes or weight management.

Blood Glucose Rises After Exercise: Causes, Management & NHS Guidance

Weight Loss

min read

Blood Glucose Rises After Exercise: Causes, Management & NHS Guidance

Blood glucose rises after exercise in some people with diabetes — find out why it happens, which activities are most likely to cause it, and how to manage post-exercise glucose spikes safely with NHS-aligned guidance.

Is Sildenafil a Vasodilator or Vasoconstrictor?

Erectile Dysfunction

min read

Is Sildenafil a Vasodilator or Vasoconstrictor?

Sildenafil (Viagra) is a vasodilator, not a vasoconstrictor. Discover how it works, its UK-licensed uses, and what this means for your health.

Bolt Guides

Featured

Switching From Wegovy Injection to Pill: UK Prescribing Guide

Weight loss

POTS After Bariatric Surgery: Causes, Symptoms and NHS Treatment

Blood Glucose Readings for Non-Diabetics: UK Normal Ranges Explained

How to Reverse a 5.8% HbA1c: NHS-Backed Lifestyle Advice

GLP-1 Brands

Wegovy

Mounjaro

Retatrutide Injections: UK Guide to Administration, Dosing, and Safety

Retatrutide: What It Is Made Of and How It Works

Feeling Cold on Retatrutide: Causes, Management, and When to Seek Help

Retatrutide in Pill Form: What UK Patients Need to Know

Men’s Health

Testosterone

Erectile dysfunction

Does Rybelsus Cause Erectile Dysfunction?

How to Treat Rash From Testosterone Treatment: Expert Guide

Does Testosterone Treatment Cause Muscle Pain? UK Evidence & Guidance

How Much Testogel Should a Man Use? UK Dosage Guide

Browse all

Wegovy NHS Cost: Eligibility, Prescription Charges & Access

Omega-3 Fatty Acid Sources: Fish, Plants & Supplements

Type 2 Diabetes and Diarrhoea: Causes, Medications & Management

Are Goji Berries Good for Erectile Dysfunction? Evidence Review

How Much Testogel to Use: Dosage Guidelines and Application

Does Mirtazapine Cause Hair Loss? UK Guide to This Side Effect

Can Alcohol Cause Gynaecomastia? Causes, Treatment and NHS Advice

Evening Primrose Oil for Gynaecomastia: Evidence, Risks, and UK Guidance

Can Retatrutide Cause Depression? Evidence, Risks, and Guidance

Benefits of NAD Injections: Evidence, Safety and UK Guidance

Gastric Sleeve for PCOS: NHS Eligibility, Risks, and Alternatives

Cod Liver Oil Benefits, Uses & Safety Guide

B12 Shots and Mounjaro: Safety, Benefits and Considerations

Blood Glucose Rises After Exercise: Causes, Management & NHS Guidance

Is Sildenafil a Vasodilator or Vasoconstrictor?