Bolt Guides

Expert insights on weight loss and more.

Featured

Retatrutide Side Effects and Libido: What the Evidence Shows

GLP-1 Brands

min read

Retatrutide Side Effects and Libido: What the Evidence Shows

Retatrutide side effects and libido changes explained — discover what Phase 2 trial data reveals, why sexual health effects remain unconfirmed, and when to speak to a UK GP or specialist.

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Weight loss

Read all on weight loss

Gynaecomastia: What It Looks Like, Causes, and NHS Treatment

Weight Loss

min read

Gynaecomastia: What It Looks Like, Causes, and NHS Treatment

Wondering what gynaecomastia looks like? Learn to recognise the signs — from subareolar swelling to firm disc-like tissue — and understand causes, diagnosis, and NHS treatment options.

What Can You Never Eat Again After Gastric Sleeve Surgery?

Weight Loss

min read

What Can You Never Eat Again After Gastric Sleeve Surgery?

What can you never eat again after gastric sleeve surgery? Discover which foods to avoid, why they cause problems, and essential NHS dietary guidance for long-term health after sleeve gastrectomy.

Low Blood Pressure After Gastric Sleeve: Causes, Symptoms & Management

Weight Loss

min read

Low Blood Pressure After Gastric Sleeve: Causes, Symptoms & Management

Low blood pressure after gastric sleeve surgery — find out why it happens, how to recognise symptoms, when to seek NHS medical advice, and how to manage your medications and recovery safely.

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 Side Effects and Libido: What the Evidence Shows

Retatrutide side effects and libido changes explained — discover what Phase 2 trial data reveals, why sexual health effects remain unconfirmed, and when to speak to a UK GP or specialist.

Read now

Retatrutide for Muscle Growth: Evidence, Safety, and UK Availability

GLP-1 Brands

min read

Retatrutide for Muscle Growth: Evidence, Safety, and UK Availability

Retatrutide for muscle growth: find out what the clinical evidence actually shows, its unlicensed status in the UK, safety risks, and NICE-approved alternatives for body composition.

Retatrutide Mechanism of Action: Triple Hormone Receptor Agonist Explained

GLP-1 Brands

min read

Retatrutide Mechanism of Action: Triple Hormone Receptor Agonist Explained

Retatrutide's mechanism of action as a triple hormone receptor agonist explained — how GLP-1, GIP, and glucagon pathways work together, what Phase 2 trials show, and its current UK regulatory status.

Retatrutide and Diarrhoea: Evidence, Frequency, and Safe Management

GLP-1 Brands

min read

Retatrutide and Diarrhoea: Evidence, Frequency, and Safe Management

Does retatrutide cause diarrhoea? Phase 2 trial data confirm it does, especially at higher doses. Learn how common it is, what triggers it, and when to seek medical advice.

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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 Silodosin Help with Erectile Dysfunction? UK Medical Facts

Does silodosin help with erectile dysfunction? Discover the facts about this BPH medication, its effects on sexual function, and evidence-based treatments for ED. Essential UK guidance for men's health.

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Can I Use Testogel When I Come Off Steroids? UK Medical Guidance

Testosterone

min read

Can I Use Testogel When I Come Off Steroids? UK Medical Guidance

Can I use Testogel when I come off steroids? Discover why Testogel is generally not recommended immediately after stopping anabolic steroids, when it might be appropriate, and what medical assessment is required. UK guidance on testosterone recovery and safer alternatives explained.

Testosterone

min read

Does Testogel Work for Men with Low Testosterone?

Does Testogel work for men with low testosterone? Discover how this UK-licensed transdermal gel treats hypogonadism, clinical evidence for its effectiveness, expected results timeline, who benefits most, and essential safety considerations for informed treatment decisions.

TRT Side Effects: Does It Affect Flexibility?

Testosterone

min read

TRT Side Effects: Does It Affect Flexibility?

Does TRT affect flexibility? Learn how testosterone replacement therapy impacts muscle and range of motion, plus tips to stay supple.

Can You Take Imodium After Gastric Sleeve Surgery?

Weight Loss

min read

Can You Take Imodium After Gastric Sleeve Surgery?

Can you take Imodium after gastric sleeve surgery? Learn how loperamide works, when it may be safe to use post-sleeve gastrectomy, first-line alternatives, and when to contact your bariatric team.

Weight Loss

min read

Low Blood Pressure After Gastric Sleeve: Causes, Symptoms & Management

Low blood pressure after gastric sleeve surgery — find out why it happens, how to recognise symptoms, when to seek NHS medical advice, and how to manage your medications and recovery safely.

Vitamin D and Depression: Understanding the Link and Treatment Options

Supplements

min read

Vitamin D and Depression: Understanding the Link and Treatment Options

Discover the connection between vitamin D and depression, including how deficiency may affect mental health, symptoms to watch for, UK testing and treatment options, and when to seek medical advice for mood concerns.

GLP-1/GIP and Vitamin B12: What You Need to Know

Weight Loss

min read

GLP-1/GIP and Vitamin B12: What You Need to Know

Discover what GLP-1/GIP + B12 means for your health. Learn how medicines like Ozempic, Wegovy, and Mounjaro may affect vitamin B12 levels, recognise deficiency symptoms, and find expert guidance on monitoring and maintaining B12 during treatment.

Hair Loss

min read

Kenalog Injections for Hair Loss: UK Guide to Treatment

Kenalog injections for hair loss: find out how triamcinolone acetonide works for alopecia areata, what side effects to expect, and how to access NHS or private treatment in the UK.

Dental Hygiene Scope of Practice and HbA1c: A UK Clinical Guide

Weight Loss

min read

Dental Hygiene Scope of Practice and HbA1c: A UK Clinical Guide

Dental hygiene scope of practice and HbA1c explained: understand glycaemic markers, periodontal links, referral pathways, and how UK hygienists can safely support patients with diabetes.

Does Cold Water Cause Fatty Liver? Evidence and Facts

Weight Loss

min read

Does Cold Water Cause Fatty Liver? Evidence and Facts

Does cold water cause fatty liver? Discover the truth behind this common myth and learn the real causes of fatty liver disease, including evidence-based prevention strategies and when to see your GP.

How Much Testogel Should I Take? UK Dosing Guide

Testosterone

min read

How Much Testogel Should I Take? UK Dosing Guide

How much Testogel should you take? Learn how doctors determine your individual dose, typical starting amounts for each formulation, dose adjustment based on blood tests, and what to do if you miss or take too much. UK guidance included.

Feeling Full on a Calorie Deficit: Is It Normal and What It Means

Weight Loss

min read

Feeling Full on a Calorie Deficit: Is It Normal and What It Means

Is it normal to feel full on a calorie deficit? Yes — and it often means your diet is working. Discover the science behind satiety, the best filling foods, and when to see your GP.

Prednisone and Allergy Medication: UK Guide to Safe Combined Use

Supplements

min read

Prednisone and Allergy Medication: UK Guide to Safe Combined Use

Prednisone and allergy medication explained: how prednisolone is used alongside antihistamines in the UK, key drug interactions, NHS safety guidance, and when to see your GP.

What Is the Half-Life of Rybelsus (Semaglutide)?

GLP-1 Brands

min read

What Is the Half-Life of Rybelsus (Semaglutide)?

What is the half-life of Rybelsus? Discover how Rybelsus (semaglutide) stays in your system, why it takes weeks to reach full effect, and what this means for your type 2 diabetes treatment. Expert UK guidance included.

Mounjaro

min read

Does Mounjaro Expire? Shelf Life, Storage & Safety Guide

Find out if Mounjaro expires, how long it lasts in the fridge, what happens if you use expired pens, and essential storage tips for tirzepatide.

Resveratrol Dosage for Fertility: UK Evidence and Safety Guide

Supplements

min read

Resveratrol Dosage for Fertility: UK Evidence and Safety Guide

Discover evidence-based guidance on resveratrol dosage for fertility, including typical ranges used in clinical trials, safety considerations, and when to seek professional fertility assessment in the UK.

Vitamin D and A Ointment: Uses, Application and Safety Guidance

Supplements

min read

Vitamin D and A Ointment: Uses, Application and Safety Guidance

Discover how vitamin D and A ointment supports skin health in the UK. Learn safe application techniques, potential side effects, who should avoid these preparations, and when to seek medical advice for skin conditions.

Flea Allergy Dermatitis Medication: UK Treatment Guide for Pets and People

Supplements

min read

Flea Allergy Dermatitis Medication: UK Treatment Guide for Pets and People

Flea allergy dermatitis medication explained: NHS-aligned guide covering antihistamines, topical steroids, veterinary flea treatments, and environmental control for UK patients and pet owners.

Bolt Guides

Featured

Retatrutide Side Effects and Libido: What the Evidence Shows

Weight loss

Gynaecomastia: What It Looks Like, Causes, and NHS Treatment

What Can You Never Eat Again After Gastric Sleeve Surgery?

Low Blood Pressure After Gastric Sleeve: Causes, Symptoms & Management

GLP-1 Brands

Wegovy

Mounjaro

Retatrutide Side Effects and Libido: What the Evidence Shows

Retatrutide for Muscle Growth: Evidence, Safety, and UK Availability

Retatrutide Mechanism of Action: Triple Hormone Receptor Agonist Explained

Retatrutide and Diarrhoea: Evidence, Frequency, and Safe Management

Men’s Health

Testosterone

Erectile dysfunction

Does Silodosin Help with Erectile Dysfunction? UK Medical Facts

Can I Use Testogel When I Come Off Steroids? UK Medical Guidance

Does Testogel Work for Men with Low Testosterone?

TRT Side Effects: Does It Affect Flexibility?

Browse all

Can You Take Imodium After Gastric Sleeve Surgery?

Low Blood Pressure After Gastric Sleeve: Causes, Symptoms & Management

Vitamin D and Depression: Understanding the Link and Treatment Options

GLP-1/GIP and Vitamin B12: What You Need to Know

Kenalog Injections for Hair Loss: UK Guide to Treatment

Dental Hygiene Scope of Practice and HbA1c: A UK Clinical Guide

Does Cold Water Cause Fatty Liver? Evidence and Facts

How Much Testogel Should I Take? UK Dosing Guide

Feeling Full on a Calorie Deficit: Is It Normal and What It Means

Prednisone and Allergy Medication: UK Guide to Safe Combined Use

What Is the Half-Life of Rybelsus (Semaglutide)?

Does Mounjaro Expire? Shelf Life, Storage & Safety Guide

Resveratrol Dosage for Fertility: UK Evidence and Safety Guide

Vitamin D and A Ointment: Uses, Application and Safety Guidance

Flea Allergy Dermatitis Medication: UK Treatment Guide for Pets and People

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