Bolt Guides

When can you eat salad after gastric sleeve surgery? Find out the recommended timeline, safest ingredients, foods to avoid, and expert NHS-aligned tips for reintroducing raw foods comfortably.

Weight Loss

min read

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

Use a gastric sleeve weight loss calculator to estimate your results after sleeve gastrectomy. Learn how these tools work, NHS eligibility criteria, and expert recovery planning advice.

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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

How Long Does Rybelsus Stay in Your System?

How long does Rybelsus stay in your system? Discover the elimination timeline, factors affecting clearance, and what happens when you stop taking this type 2 diabetes medication.

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What Is Ozempic Personality? Mood Changes and Semaglutide

GLP-1 Brands

min read

What Is Ozempic Personality? Mood Changes and Semaglutide

What is Ozempic personality? Explore reported mood and behavioural changes with semaglutide, the scientific evidence, and when to speak to your GP about side effects whilst taking Ozempic for type 2 diabetes.

What Does Trulicity Do to Your Body? Effects Explained

GLP-1 Brands

min read

What Does Trulicity Do to Your Body? Effects Explained

Discover what Trulicity does to your body, including how this GLP-1 receptor agonist lowers blood sugar, affects weight and appetite, and impacts long-term health in type 2 diabetes management.

Saxenda & Blood Donation: UK Eligibility Guide

GLP-1 Brands

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Saxenda & Blood Donation: UK Eligibility Guide

Taking Saxenda and want to give blood? Learn UK eligibility rules from NHSBT, what liraglutide means for donors, and when to seek advice before donating.

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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

Trans Women & Erectile Function: UK Guide

Erectile Dysfunction

min read

Trans Women & Erectile Function: UK Guide

Learn how hormone therapy affects erections in trans women, whether Viagra is suitable, and what support is available through the NHS.

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Testosterone

min read

How Often Should Testosterone Be Checked When Using Testogel?

Find out how often testosterone levels should be checked when using Testogel. Learn about UK monitoring schedules, blood tests, safety checks, and signs your dose may need adjusting under NHS guidelines.

Where to Put Testogel for Women: Safe Application Sites

Testosterone

min read

Where to Put Testogel for Women: Safe Application Sites

Discover where to put Testogel safely if you're a woman prescribed this off-label testosterone therapy. Learn the recommended application sites, step-by-step technique, and essential safety precautions to optimise treatment and minimise risks.

Testosterone

min read

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Can testosterone cause gynaecomastia? Learn how testosterone converts to oestrogen, who is most at risk, how to spot symptoms, and what NHS treatment options are available.

Can Kidney Stones Cause Fatty Liver? Understanding the Connection

Weight Loss

min read

Can Kidney Stones Cause Fatty Liver? Understanding the Connection

Can kidney stones cause fatty liver? Discover the surprising connection between these common conditions, the shared metabolic risk factors that link them, and what this means for your health and treatment options.

Hair Loss

min read

Does Red Light Therapy Work for Hair Loss? UK Evidence Guide

Does red light therapy work for hair loss? Explore the clinical evidence, safety considerations, suitable hair loss types, and how to access LLLT devices and clinics in the UK.

Allergy Medication and CRP: What Patients and Clinicians Need to Know

Supplements

min read

Allergy Medication and CRP: What Patients and Clinicians Need to Know

Can allergy medication affect CRP blood test results? Learn how corticosteroids, antihistamines, and biologics influence CRP levels, what your results mean, and when to see your GP.

Hair Loss

min read

Best Shampoos for Hair Loss: Evidence, Ingredients and UK Guidance

Best shampoos for hair loss reviewed by ingredient and hair loss type. Discover what the clinical evidence says, which actives to look for, and when to seek NHS or specialist advice.

HbA1c 6.5%: Does This Diabetes Result Need Medication?

Weight Loss

min read

HbA1c 6.5%: Does This Diabetes Result Need Medication?

Does an HbA1c of 6.5% need medication? Learn what this diabetes diagnosis threshold means, when lifestyle changes may be enough, and when NICE guidelines recommend starting treatment.

Retatrutide Dosing: How Often to Take It and UK Availability

GLP-1 Brands

min read

Retatrutide Dosing: How Often to Take It and UK Availability

How often to take retatrutide, what doses are used, and who may be suitable — plus UK regulatory status, safety considerations, and approved alternatives explained.

Allergy Services UK: Diagnosis, NHS Referral, and Treatment Options

Supplements

min read

Allergy Services UK: Diagnosis, NHS Referral, and Treatment Options

Allergy services in the UK explained — discover how NHS allergy clinics work, how common allergic conditions are diagnosed, treatment options, and when to seek urgent help. Aligned with NICE and BSACI guidance.

Mounjaro

min read

Does Mounjaro Cause Haemorrhoids? UK Medical Guide

Does Mounjaro cause haemorrhoids? Discover how tirzepatide's gastrointestinal effects may indirectly contribute to haemorrhoid symptoms, plus expert advice on managing digestive side effects and when to seek medical help.

Seroma Formation After Gynaecomastia Surgery: Causes, Treatment and Prevention

Weight Loss

min read

Seroma Formation After Gynaecomastia Surgery: Causes, Treatment and Prevention

Seroma formation after gynaecomastia surgery explained — causes, symptoms, risk factors, and UK treatment options including aspiration and compression. Read our expert clinical guide.

HbA1c Not Accurate: Causes, Limitations, and Alternative Tests

Weight Loss

min read

HbA1c Not Accurate: Causes, Limitations, and Alternative Tests

HbA1c not accurate for you? Learn why haemoglobin A1c results can be misleading, which medical conditions affect readings, and what alternative tests NHS clinicians use instead.

D-Glucosamine 6-Phosphate: Role, Function and Clinical Significance

Supplements

min read

D-Glucosamine 6-Phosphate: Role, Function and Clinical Significance

Discover what d-glucosamine 6-phosphate is, its essential role in metabolism and tissue structure, and how it differs from glucosamine supplements. Expert UK medical guidance on this vital intracellular metabolite.

Erectile Dysfunction

min read

Does Astaxanthin Cause Erectile Dysfunction? Evidence and Advice

Does astaxanthin cause erectile dysfunction? Discover what the evidence says about this popular antioxidant supplement, its effects on vascular health, and when to seek medical advice for erectile problems.

Rybelsus and Alcohol Consumption: Safety Guidance for UK Patients

GLP-1 Brands

min read

Rybelsus and Alcohol Consumption: Safety Guidance for UK Patients

Can you drink alcohol whilst taking Rybelsus? Discover the risks, safe limits, and expert guidance on combining Rybelsus and alcohol consumption for type 2 diabetes management in the UK.

Can Rybelsus Make You Gain Weight? Clinical Evidence Explained

GLP-1 Brands

min read

Can Rybelsus Make You Gain Weight? Clinical Evidence Explained

Can Rybelsus make you gain weight? Discover what clinical evidence reveals about weight changes with this type 2 diabetes medication, why individual responses vary, and what to do if you notice unexpected weight gain whilst taking Rybelsus.

Supplements

min read

Vitamin B12 Supplements for Pregnancy: UK Guidance and Dosage

Discover which pregnant women need vitamin B12 supplements for pregnancy, recommended dosages, food sources, and safety guidance. Expert UK advice on B12 supplementation for vegans, vegetarians, and those with deficiency to support maternal and fetal health.

Bolt Guides

Featured

What Is RMR? Resting Metabolic Rate Explained

Weight loss

What Is RMR? Resting Metabolic Rate Explained

When Can I Eat Salad After Gastric Sleeve Surgery?

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

GLP-1 Brands

Wegovy

Mounjaro

How Long Does Rybelsus Stay in Your System?

What Is Ozempic Personality? Mood Changes and Semaglutide

What Does Trulicity Do to Your Body? Effects Explained

Saxenda & Blood Donation: UK Eligibility Guide

Men’s Health

Testosterone

Erectile dysfunction

Trans Women & Erectile Function: UK Guide

How Often Should Testosterone Be Checked When Using Testogel?

Where to Put Testogel for Women: Safe Application Sites

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Browse all

Can Kidney Stones Cause Fatty Liver? Understanding the Connection

Does Red Light Therapy Work for Hair Loss? UK Evidence Guide

Allergy Medication and CRP: What Patients and Clinicians Need to Know

Best Shampoos for Hair Loss: Evidence, Ingredients and UK Guidance

HbA1c 6.5%: Does This Diabetes Result Need Medication?

Retatrutide Dosing: How Often to Take It and UK Availability

Allergy Services UK: Diagnosis, NHS Referral, and Treatment Options

Does Mounjaro Cause Haemorrhoids? UK Medical Guide

Seroma Formation After Gynaecomastia Surgery: Causes, Treatment and Prevention

HbA1c Not Accurate: Causes, Limitations, and Alternative Tests

D-Glucosamine 6-Phosphate: Role, Function and Clinical Significance

Does Astaxanthin Cause Erectile Dysfunction? Evidence and Advice

Rybelsus and Alcohol Consumption: Safety Guidance for UK Patients

Can Rybelsus Make You Gain Weight? Clinical Evidence Explained

Vitamin B12 Supplements for Pregnancy: UK Guidance and Dosage

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