Bolt Guides

Expert insights on weight loss and more.

Featured

Cost

min read

Mounjaro Cost for Weight Loss: UK Access and Pricing Guide

Discover the cost of Mounjaro (tirzepatide) for weight loss in the UK, including NHS and private access routes, eligibility criteria, clinical effectiveness, and what to expect from treatment. Expert guidance on this dual GIP/GLP-1 medication.

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Weight loss

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Gastric Sleeve on the NHS: Eligibility & Recovery

Weight Loss

min read

Gastric Sleeve on the NHS: Eligibility & Recovery

Do you qualify for NHS gastric sleeve surgery? Discover eligibility, what the procedure involves, risks, and recovery. Clear UK guidance.

Low BMI Gastric Sleeve: Who Qualifies & UK Options

Weight Loss

min read

Low BMI Gastric Sleeve: Who Qualifies & UK Options

Explore NHS and NICE criteria for low BMI gastric sleeve surgery, what the evidence shows, and your private UK options if you don't meet the threshold.

Prenatal Vitamins After Gastric Sleeve: UK Guide

Weight Loss

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Prenatal Vitamins After Gastric Sleeve: UK Guide

Had a gastric sleeve and now pregnant? Learn which prenatal vitamins are safe, what UK guidance recommends, and how to avoid dangerous deficiencies.

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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

Ozempic for Binge Eating: Evidence, Safety and NHS Treatment Options

Ozempic for binge eating: Is it effective? Explore the evidence, safety concerns, and NHS-recommended treatments for binge eating disorder. Learn what NICE guidelines advise and how to discuss options with your GP.

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Ozempic for Binge Eating: Evidence, Safety and NHS Treatment Options

Ozempic and Liver Disease: UK Safety Guidance and Monitoring

GLP-1 Brands

min read

Ozempic and Liver Disease: UK Safety Guidance and Monitoring

Ozempic and liver disease: discover how semaglutide affects patients with NAFLD and existing hepatic conditions. Expert UK guidance on safety, monitoring, and when to seek medical advice for liver health during GLP-1 treatment.

Bupropion and Saxenda Together: UK Safety Guide

GLP-1 Brands

min read

Bupropion and Saxenda Together: UK Safety Guide

Can you take bupropion and Saxenda together? Understand the key risks, seizure considerations, and when specialist supervision is needed in the UK.

Does Saxenda Cause UTIs? Evidence & UK Guidance

GLP-1 Brands

min read

Does Saxenda Cause UTIs? Evidence & UK Guidance

Find out whether Saxenda or GLP-1 drugs are linked to UTIs. We review the clinical evidence, symptoms to watch for, and what UK guidance says.

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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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Will Sildenafil Make Me Hard? How It Works and What to Expect

Erectile Dysfunction

min read

Will Sildenafil Make Me Hard? How It Works and What to Expect

Will sildenafil make me hard? Discover how sildenafil works, why sexual arousal is essential, what to expect from treatment, safety precautions, and when to consult your GP about erectile dysfunction.

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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.

Testosterone

min read

Calorie Deficit Effect on Testosterone: What the Evidence Shows

Calorie deficit effect on testosterone explained — learn how energy restriction affects hormone levels, warning signs to watch for, and evidence-based steps to protect testosterone while losing weight safely.

Testosterone

min read

Will Your Clitoris Stay the Same After Stopping Testosterone Treatment?

Will your clitoris stay the same after stopping testosterone treatment? Discover what happens to clitoral size, sensitivity, and function when testosterone therapy ends, which changes persist, and when to seek medical advice.

Weight Loss

min read

Vitamin D Pills for Weight Loss: What the Evidence Really Shows

Vitamin D pills for weight loss — do they actually work? Explore the clinical evidence, NHS and NICE guidance on safe supplementation, deficiency risk factors, and when to speak to your GP.

Does Tilapia Have Omega-3? Evidence and NHS Guidance

Supplements

min read

Does Tilapia Have Omega-3? Evidence and NHS Guidance

Does tilapia have omega-3? Discover the evidence on tilapia's omega-3 content, how it compares to oily fish like salmon, and NHS guidance on optimising your omega-3 intake for heart health.

Is Testogel a Controlled Drug? UK Legal Status Explained

Testosterone

min read

Is Testogel a Controlled Drug? UK Legal Status Explained

Is Testogel a controlled drug in the UK? Discover the legal classification, prescription requirements, safety regulations, and how to obtain testosterone gel lawfully through the NHS or private healthcare.

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.

Hair Loss

min read

Intermittent Fasting Hair Loss: Causes, Risks & UK Guidance

Intermittent fasting and hair loss: find out whether IF can cause hair shedding, which nutritional deficiencies are linked to thinning, and when to see your GP. UK-aligned, evidence-based guidance.

Best Probiotic for Women on GLP-1: Evidence and Safety

Weight Loss

min read

Best Probiotic for Women on GLP-1: Evidence and Safety

Discover the best probiotic for women on GLP-1 medications. Expert guidance on strain selection, evidence for digestive support, safety considerations, and when to seek medical advice whilst taking semaglutide or liraglutide.

Bio-Rad D-10 HbA1c Manual: NHS Laboratory Guide to HPLC Testing

Weight Loss

min read

Bio-Rad D-10 HbA1c Manual: NHS Laboratory Guide to HPLC Testing

Bio-Rad D-10 HbA1c manual guidance for NHS laboratories — covering HPLC operating instructions, calibration, QC, UKAS compliance, result interpretation per NICE, troubleshooting, and MHRA regulations.

OGTT Test vs HbA1c: Key Differences, Uses, and NHS Guidance

Weight Loss

min read

OGTT Test vs HbA1c: Key Differences, Uses, and NHS Guidance

OGTT test vs HbA1c — find out how these two diabetes tests differ, which the NHS recommends and when, diagnostic thresholds, limitations, and what your results mean.

What Is a GLP-1 Plan? UK Guide & NHS Criteria

Weight Loss

min read

What Is a GLP-1 Plan? UK Guide & NHS Criteria

Discover how a GLP-1 plan works, NHS eligibility, and what to expect from treatment for type 2 diabetes and weight loss.

Areola Reduction After Gynecomastia Surgery: UK Guide

Weight Loss

min read

Areola Reduction After Gynecomastia Surgery: UK Guide

Areola reduction after gynecomastia surgery: find out why the areola may remain enlarged, how the procedure works, recovery, risks, UK costs, and how to choose a qualified surgeon.

Canagliflozin (Invokana): UK Guide for Type 2 Diabetes

Weight Loss

min read

Canagliflozin (Invokana): UK Guide for Type 2 Diabetes

Learn how canagliflozin (Invokana) works, its side effects, dosing, and cardiovascular benefits. UK guidance aligned with NICE and MHRA recommendations.

Mounjaro

min read

Mounjaro Injection Site Reaction: Rash, Itching & Relief

Red, itchy injection site after Mounjaro? Discover what causes these skin reactions, how to manage symptoms, and when to contact your doctor.

How Does Testogel Affect My Girlfriend: Transfer Risks and Prevention

Testosterone

min read

How Does Testogel Affect My Girlfriend: Transfer Risks and Prevention

Concerned about how Testogel might affect your girlfriend? Learn about testosterone transfer risks, potential effects on female partners, and essential precautions to prevent exposure. Expert UK guidance on safe use of topical testosterone therapy.

Gastric Band Shoulder Pain: Causes, Treatment and When to Seek Help

Weight Loss

min read

Gastric Band Shoulder Pain: Causes, Treatment and When to Seek Help

Gastric band shoulder pain explained: why it happens, common causes including referred CO₂ gas pain, when to seek urgent help, NHS treatment options, and how to prevent complications after bariatric surgery.

Vitamin A B C D E Rich Foods: Complete UK Dietary Guide

Supplements

min read

Vitamin A B C D E Rich Foods: Complete UK Dietary Guide

Discover the best vitamin A, B, C, D and E rich foods to support your health. Expert guidance on dietary sources, daily requirements and practical meal planning aligned with NHS recommendations for optimal nutrition.

Bolt Guides

Featured

Mounjaro Cost for Weight Loss: UK Access and Pricing Guide

Weight loss

Gastric Sleeve on the NHS: Eligibility & Recovery

Low BMI Gastric Sleeve: Who Qualifies & UK Options

Prenatal Vitamins After Gastric Sleeve: UK Guide

GLP-1 Brands

Wegovy

Mounjaro

Ozempic for Binge Eating: Evidence, Safety and NHS Treatment Options

Ozempic and Liver Disease: UK Safety Guidance and Monitoring

Bupropion and Saxenda Together: UK Safety Guide

Does Saxenda Cause UTIs? Evidence & UK Guidance

Men’s Health

Testosterone

Erectile dysfunction

Will Sildenafil Make Me Hard? How It Works and What to Expect

Is Testosterone Treatment Permanent? UK Guide to TRT Duration

Calorie Deficit Effect on Testosterone: What the Evidence Shows

Will Your Clitoris Stay the Same After Stopping Testosterone Treatment?

Browse all

Vitamin D Pills for Weight Loss: What the Evidence Really Shows

Does Tilapia Have Omega-3? Evidence and NHS Guidance

Is Testogel a Controlled Drug? UK Legal Status Explained

Retatrutide Results: How Long Before You See Weight Loss?

Intermittent Fasting Hair Loss: Causes, Risks & UK Guidance

Best Probiotic for Women on GLP-1: Evidence and Safety

Bio-Rad D-10 HbA1c Manual: NHS Laboratory Guide to HPLC Testing

OGTT Test vs HbA1c: Key Differences, Uses, and NHS Guidance

What Is a GLP-1 Plan? UK Guide & NHS Criteria

Areola Reduction After Gynecomastia Surgery: UK Guide

Canagliflozin (Invokana): UK Guide for Type 2 Diabetes

Mounjaro Injection Site Reaction: Rash, Itching & Relief

How Does Testogel Affect My Girlfriend: Transfer Risks and Prevention

Gastric Band Shoulder Pain: Causes, Treatment and When to Seek Help

Vitamin A B C D E Rich Foods: Complete UK Dietary Guide

Personalized weight management for women