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

min read

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.

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

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.

Does Ozempic Cause Hot Flushes? Evidence and Management

GLP-1 Brands

min read

Does Ozempic Cause Hot Flushes? Evidence and Management

Does Ozempic cause hot flushes? Explore the evidence, potential indirect mechanisms, and practical management strategies for vasomotor symptoms during semaglutide treatment for type 2 diabetes.

Does Fatty Liver Cause Brain Fog? Evidence and Advice

Weight Loss

min read

Does Fatty Liver Cause Brain Fog? Evidence and Advice

Does fatty liver cause brain fog? Discover the evidence linking fatty liver disease to cognitive symptoms, understand the mechanisms involved, explore other causes of brain fog, and learn when to seek medical advice for liver health and mental clarity.

Sildenafil & Dizziness: Causes, Risks & What to Do

Erectile Dysfunction

min read

Sildenafil & Dizziness: Causes, Risks & What to Do

Sildenafil can cause dizziness in 1–10% of users. Find out why it happens, how long it lasts, and when to seek medical advice. UK clinical guidance.

Coffee and Type 2 Diabetes: Effects, Safety and Evidence

Weight Loss

min read

Coffee and Type 2 Diabetes: Effects, Safety and Evidence

Discover how coffee and type 2 diabetes interact. Learn whether coffee raises blood sugar, how much is safe to drink, and whether caffeinated or decaffeinated coffee is better for diabetes management and prevention.

Does Tadalafil Cause Flushing? UK Medical Guide

Erectile Dysfunction

min read

Does Tadalafil Cause Flushing? UK Medical Guide

Does tadalafil cause flushing? Discover why this common side effect occurs, how long it lasts, and practical strategies to manage facial redness when taking tadalafil for erectile dysfunction. Expert UK guidance inside.

Retatrutide Dosage in Units: Mg Dosing, Safety & UK Status

GLP-1 Brands

min read

Retatrutide Dosage in Units: Mg Dosing, Safety & UK Status

Retatrutide dosage in units explained: learn how this triple receptor agonist is dosed in mg, what Phase 2 trial schedules show, safety considerations, and its current UK regulatory status.

What Medication Is Good for Allergies? UK Treatment Guide

Supplements

min read

What Medication Is Good for Allergies? UK Treatment Guide

What medication is good for allergies? Discover the best UK allergy treatments — from non-drowsy antihistamines to nasal sprays — with NHS-aligned guidance on choosing the right option for your symptoms.

Best Form of B12: Comparing Effectiveness and Clinical Use

Supplements

min read

Best Form of B12: Comparing Effectiveness and Clinical Use

Discover the best form of B12 for your needs. Compare cyanocobalamin, methylcobalamin, and hydroxocobalamin with evidence-based guidance on effectiveness, absorption, and when to choose each form for supplementation or deficiency treatment.

Wegovy

min read

Wegovy and Wine: Can You Safely Drink Alcohol on Semaglutide?

Can you drink wine whilst taking Wegovy? Discover the facts about combining Wegovy and alcohol, including safety considerations, potential risks, gastrointestinal effects, and expert guidance on safe drinking limits during semaglutide treatment for weight management.

Hashimoto's and Fatty Liver: Connection, Symptoms & Treatment

Weight Loss

min read

Hashimoto's and Fatty Liver: Connection, Symptoms & Treatment

Discover the link between Hashimoto's and fatty liver disease, including shared risk factors, symptoms, diagnosis, and evidence-based treatment options to manage both conditions effectively.

Can Vitamin D Cause Constipation? UK Medical Guidance

Supplements

min read

Can Vitamin D Cause Constipation? UK Medical Guidance

Can vitamin D cause constipation? Discover how vitamin D affects bowel function, when constipation may occur, safe dosing limits, and practical management strategies for UK patients taking vitamin D supplements.

Can I Take Glutathione If I Have Fatty Liver?

Weight Loss

min read

Can I Take Glutathione If I Have Fatty Liver?

Can you take glutathione if you have fatty liver disease? Learn about the evidence, safety considerations, and why NICE guidance prioritises lifestyle changes over supplements for NAFLD management.

How to Store Reconstituted Retatrutide: UK Clinical Trial Guidance

GLP-1 Brands

min read

How to Store Reconstituted Retatrutide: UK Clinical Trial Guidance

How to store reconstituted retatrutide safely: UK-aligned guidance on temperature, beyond-use dating, deterioration signs, and disposal for authorised clinical trial settings.

Best Allergy Medication UK: Antihistamines, Nasal Sprays and More

Supplements

min read

Best Allergy Medication UK: Antihistamines, Nasal Sprays and More

What's the best allergy medication for hay fever, rhinitis, or urticaria? Explore NHS and NICE-backed options — antihistamines, nasal sprays, eye drops and more — and find the right treatment for your symptoms.

Choline Inositol Dosage for Fatty Liver: Evidence and Safety

Weight Loss

min read

Choline Inositol Dosage for Fatty Liver: Evidence and Safety

Discover the evidence on choline inositol dosage for fatty liver, including safety considerations, recommended intake levels, and why NICE guidance prioritises lifestyle interventions over supplementation for NAFLD management.

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

Does Ozempic Cause Hot Flushes? Evidence and Management

Does Fatty Liver Cause Brain Fog? Evidence and Advice

Sildenafil & Dizziness: Causes, Risks & What to Do

Coffee and Type 2 Diabetes: Effects, Safety and Evidence

Does Tadalafil Cause Flushing? UK Medical Guide

Retatrutide Dosage in Units: Mg Dosing, Safety & UK Status

What Medication Is Good for Allergies? UK Treatment Guide

Best Form of B12: Comparing Effectiveness and Clinical Use

Wegovy and Wine: Can You Safely Drink Alcohol on Semaglutide?

Hashimoto's and Fatty Liver: Connection, Symptoms & Treatment

Can Vitamin D Cause Constipation? UK Medical Guidance

Can I Take Glutathione If I Have Fatty Liver?

How to Store Reconstituted Retatrutide: UK Clinical Trial Guidance

Best Allergy Medication UK: Antihistamines, Nasal Sprays and More

Choline Inositol Dosage for Fatty Liver: Evidence and Safety

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