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.

GLP-1 Meaning: What This Hormone Does in Your Body

Weight Loss

min read

GLP-1 Meaning: What This Hormone Does in Your Body

Wondering what GLP-1 means? Learn how this natural hormone controls blood glucose, appetite, and metabolism — and why it matters for your health.

Tadalafil Half-Life: 17.5 Hours Explained

Erectile Dysfunction

min read

Tadalafil Half-Life: 17.5 Hours Explained

Tadalafil's half-life is 17.5 hours — learn what this means for how long it stays in your system, daily dosing, and key pharmacokinetics.

Testosterone

min read

Is Testosterone Treatment Permanent? UK Guide to TRT Duration

Is testosterone treatment permanent? Discover whether TRT is reversible, what happens when you stop testosterone therapy, how long treatment lasts, and NHS guidance on testosterone replacement duration for men with low testosterone in the UK.

Hair Loss

min read

Can Nits Cause Hair Loss? What UK Parents Need to Know

Can nits cause hair loss? Find out how head lice infestations can lead to temporary hair thinning, what causes it, and when to see a GP. UK-based, NHS-aligned advice.

Is Testogel Made From Plants? UK Manufacturing and Safety Guide

Testosterone

min read

Is Testogel Made From Plants? UK Manufacturing and Safety Guide

Is Testogel made from plants? Discover how Testogel's bioidentical testosterone is synthesised from plant-derived precursors, its ingredient composition, suitability for vegetarians and vegans, and essential UK safety guidance for testosterone replacement therapy.

Hair Loss

min read

Dermaroller for Hair Loss: Evidence & Safe Use

How does microneedling support hair loss treatment? Explore the clinical evidence, minoxidil timing guidance, safe needle lengths, and scalp technique.

Medical Cannabis and Obesity: UK Evidence Explained

Weight Loss

min read

Medical Cannabis and Obesity: UK Evidence Explained

Does medical cannabis affect weight or appetite? Explore the UK evidence, NICE guidance, and clinically supported alternatives for obesity management.

Does Fish Oil Cause Fatty Liver? UK Evidence and Guidance

Weight Loss

min read

Does Fish Oil Cause Fatty Liver? UK Evidence and Guidance

Does fish oil cause fatty liver? Discover what clinical evidence reveals about omega-3 supplements and liver health, plus UK guidance on safe use and when fish oil may actually benefit fatty liver disease.

Best Allergy Medication: UK Guide to Treatments and Safe Access

Supplements

min read

Best Allergy Medication: UK Guide to Treatments and Safe Access

Find the best allergy medication for your symptoms with our UK guide. Compare antihistamines, nasal sprays, and eye drops, plus expert advice on safe access and when to see a GP.

Gastric Sleeve and Coeliac Disease: Risks, Nutrition & NHS Guidance

Weight Loss

min read

Gastric Sleeve and Coeliac Disease: Risks, Nutrition & NHS Guidance

Gastric sleeve and coeliac disease together raise serious nutritional risks. Learn how to manage deficiencies, maintain a gluten-free diet post-surgery, and when to seek NHS specialist advice.

Erectile Dysfunction

min read

Do Statins Help Erectile Dysfunction? UK Evidence and Guidance

Do statins help erectile dysfunction or make it worse? Discover what UK research reveals about statins and sexual function, how cardiovascular health affects erections, and evidence-based management strategies for men concerned about ED whilst taking cholesterol-lowering medication.

Hair Loss

min read

Kristin Ess Shampoo and Hair Loss: Ingredients, Causes & UK Advice

Kristin Ess shampoo and hair loss: find out whether shampoo ingredients can cause shedding, what UK regulations say, and when to see your GP about hair loss.

Erectile Dysfunction

min read

Is Spinach Good for Erectile Dysfunction? UK Evidence Review

Is spinach good for erectile dysfunction? Discover what the evidence says about spinach, dietary nitrates, and erectile health—plus when to seek medical advice for ED in the UK.

Basmati Rice and Fatty Liver: Portion Sizes and Dietary Guidance

Weight Loss

min read

Basmati Rice and Fatty Liver: Portion Sizes and Dietary Guidance

Can basmati rice help with fatty liver disease? Discover how basmati rice fits into a liver-friendly diet, including portion sizes, glycaemic index benefits, and evidence-based dietary advice for managing NAFLD effectively.

Is Eating Tuna Every Day Bad? Mercury Risks and Safe Limits

Supplements

min read

Is Eating Tuna Every Day Bad? Mercury Risks and Safe Limits

Is eating tuna every day bad for your health? Discover the mercury risks, safe consumption limits from the NHS and FSA, nutritional benefits, and healthier alternatives to daily tuna intake.

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

GLP-1 Meaning: What This Hormone Does in Your Body

Tadalafil Half-Life: 17.5 Hours Explained

Is Testosterone Treatment Permanent? UK Guide to TRT Duration

Can Nits Cause Hair Loss? What UK Parents Need to Know

Is Testogel Made From Plants? UK Manufacturing and Safety Guide

Dermaroller for Hair Loss: Evidence & Safe Use

Medical Cannabis and Obesity: UK Evidence Explained

Does Fish Oil Cause Fatty Liver? UK Evidence and Guidance

Best Allergy Medication: UK Guide to Treatments and Safe Access

Gastric Sleeve and Coeliac Disease: Risks, Nutrition & NHS Guidance

Do Statins Help Erectile Dysfunction? UK Evidence and Guidance

Kristin Ess Shampoo and Hair Loss: Ingredients, Causes & UK Advice

Is Spinach Good for Erectile Dysfunction? UK Evidence Review

Basmati Rice and Fatty Liver: Portion Sizes and Dietary Guidance

Is Eating Tuna Every Day Bad? Mercury Risks and Safe Limits