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.

Retatrutide Results: How Long Before You See Weight Loss?

GLP-1 Brands

min read

Retatrutide Results: How Long Before You See Weight Loss?

How long to see results from retatrutide? Phase 2 trial data show meaningful weight loss from months 3–6, with results continuing at 48 weeks. Learn about the timeline, influencing factors, and UK regulatory status.

How to Calorie Deficit Safely: A UK Evidence-Based Guide

Weight Loss

min read

How to Calorie Deficit Safely: A UK Evidence-Based Guide

How to calorie deficit safely and effectively — learn how to calculate your daily calorie needs, create a NICE-recommended 600 kcal deficit, and choose the right foods to support sustainable weight loss.

Does Fenugreek Cause Gynaecomastia? Evidence and UK Guidance

Weight Loss

min read

Does Fenugreek Cause Gynaecomastia? Evidence and UK Guidance

Does fenugreek cause gynaecomastia? Explore the clinical evidence, hormonal mechanisms, and UK NHS and MHRA guidance on fenugreek supplements and male breast tissue changes.

How Does Retatrutide Make You Feel: Side Effects Explained

GLP-1 Brands

min read

How Does Retatrutide Make You Feel: Side Effects Explained

How does retatrutide make you feel? Discover the common sensations, side effects, and safety signals reported in clinical trials of this investigational triple receptor agonist for obesity and type 2 diabetes.

Does Tuna Have Omega-3 Fatty Acids? UK Guide

Supplements

min read

Does Tuna Have Omega-3 Fatty Acids? UK Guide

Does tuna have omega-3 fatty acids? Discover how much EPA and DHA different tuna varieties contain, why fresh tuna offers more omega-3 than canned, and how to balance nutritional benefits with mercury safety for optimal health.

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.

Cod Liver Oil Side Effects: Safety Guide and UK Advice

Supplements

min read

Cod Liver Oil Side Effects: Safety Guide and UK Advice

Discover cod liver oil side effects, from common digestive issues to serious vitamin toxicity risks. Learn who should avoid it, safe dosages, and when to seek medical advice with UK NHS guidance.

Hair Loss

min read

Does Acupuncture Help With Hair Loss? Evidence, Risks & UK Guidance

Does acupuncture help with hair loss? Explore the evidence, types of alopecia it may target, how UK sessions work, risks, and what NICE and the NHS actually recommend.

Signs of Low B12: Symptoms, Diagnosis and Treatment

Supplements

min read

Signs of Low B12: Symptoms, Diagnosis and Treatment

Discover the key signs of low B12, from pins and needles to fatigue and memory problems. Learn who's at risk, how deficiency is diagnosed in the UK, and when to see your GP for assessment and treatment.

Retatrutide Liver Fat Reduction: Evidence, Safety, and UK Regulatory Status

GLP-1 Brands

min read

Retatrutide Liver Fat Reduction: Evidence, Safety, and UK Regulatory Status

Retatrutide liver fat reduction: discover how this investigational triple agonist works, what Phase 2 clinical evidence shows, who may benefit, its safety profile, and current UK regulatory status.

I Hate My Gastric Sleeve: Causes, Support, and Your Options

Weight Loss

min read

I Hate My Gastric Sleeve: Causes, Support, and Your Options

"I hate my gastric sleeve" — you are not alone. Discover why post-sleeve struggles are common, when to seek NHS help, how to improve daily life, and your revision surgery options.

VTE Treatment in Obese Patients: Dosing and Management Guide

Weight Loss

min read

VTE Treatment in Obese Patients: Dosing and Management Guide

Discover evidence-based guidance on VTE treatment in obese patients, including anticoagulation dosing challenges, NICE-recommended options, monitoring strategies, and long-term management approaches for optimal outcomes.

Does Fatty Liver Cause Bad Breath? UK Medical Facts

Weight Loss

min read

Does Fatty Liver Cause Bad Breath? UK Medical Facts

Does fatty liver cause bad breath? Discover the truth about NAFLD and halitosis, when breath odour signals serious liver disease, and what really causes bad breath in UK patients.

Omega-3 for Kids: Benefits, Sources & Safety

Supplements

min read

Omega-3 for Kids: Benefits, Sources & Safety

Discover how omega-3 supports kids' brain and eye development, the best food sources of DHA and EPA, and what parents should know about supplements.

Does Tap Water Increase GLP-1 Levels? Evidence-Based Facts

Weight Loss

min read

Does Tap Water Increase GLP-1 Levels? Evidence-Based Facts

Does tap water increase GLP-1 levels? Discover the scientific evidence behind this claim, learn what actually stimulates GLP-1 production, and find evidence-based strategies to support healthy incretin function naturally.

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

Retatrutide Results: How Long Before You See Weight Loss?

How to Calorie Deficit Safely: A UK Evidence-Based Guide

Does Fenugreek Cause Gynaecomastia? Evidence and UK Guidance

How Does Retatrutide Make You Feel: Side Effects Explained

Does Tuna Have Omega-3 Fatty Acids? UK Guide

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

Cod Liver Oil Side Effects: Safety Guide and UK Advice

Does Acupuncture Help With Hair Loss? Evidence, Risks & UK Guidance

Signs of Low B12: Symptoms, Diagnosis and Treatment

Retatrutide Liver Fat Reduction: Evidence, Safety, and UK Regulatory Status

I Hate My Gastric Sleeve: Causes, Support, and Your Options

VTE Treatment in Obese Patients: Dosing and Management Guide

Does Fatty Liver Cause Bad Breath? UK Medical Facts

Omega-3 for Kids: Benefits, Sources & Safety

Does Tap Water Increase GLP-1 Levels? Evidence-Based Facts