Bolt Guides

Expert insights on weight loss and more.

Featured

Wegovy

min read

Wegovy Pill UK: Approval, Eligibility, Dosing and Safety

The Wegovy pill (oral semaglutide) is now MHRA-approved in the UK. Who can take it, the dosing schedule, how to take it, and how it compares with the injection.

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Weight loss

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Weight Loss

min read

Weight Loss Pills and Alcohol: Risks, Interactions and UK Guidance

How alcohol interacts with UK weight loss medications including Wegovy, the oral Wegovy pill, Mysimba and orlistat: key risks and when to seek advice.

Bio-Rad HPLC HbA1c Testing: NHS Laboratory Guide and NICE Guidance

Weight Loss

min read

Bio-Rad HPLC HbA1c Testing: NHS Laboratory Guide and NICE Guidance

Bio-Rad HPLC HbA1c testing explained: how ion-exchange chromatography works, NHS laboratory use, NICE diagnostic thresholds, haemoglobin variant interference, and MHRA compliance guidance.

Gastric Sleeve Surgery: How It Works, Eligibility and Long-Term Outcomes

Weight Loss

min read

Gastric Sleeve Surgery: How It Works, Eligibility and Long-Term Outcomes

Gastric sleeve surgery explained: how sleeve gastrectomy works, NHS eligibility criteria, what to expect before and after surgery, risks, and long-term outcomes. Evidence-based UK guidance.

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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

Rybelsus for Weight Loss: Evidence, Safety, and UK Prescribing Guidance

Is Rybelsus a good weight loss pill? How oral semaglutide compares to the new Wegovy pill (25 mg), the evidence, side effects, and UK prescribing guidance.

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Rybelsus for Weight Loss: Evidence, Safety, and UK Prescribing Guidance

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

GLP-1 Brands

min read

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

How much bacteriostatic water to mix with retatrutide — understand reconstitution principles, UK regulatory status, safety risks, and when to seek medical advice before use.

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.

How to Eat on Retatrutide: UK Dietary and Safety Guide

GLP-1 Brands

min read

How to Eat on Retatrutide: UK Dietary and Safety Guide

How to eat on retatrutide: expert UK dietary guidance covering meal patterns, foods to prioritise, managing nausea, and staying well-nourished during treatment. Read now.

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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.

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

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.

Can Testogel Make You Lethargic? Causes and Management

Testosterone

min read

Can Testogel Make You Lethargic? Causes and Management

Can Testogel make you feel tired? Discover why testosterone replacement therapy may cause lethargy, key warning signs to watch for, and evidence-based strategies to manage fatigue during TRT in the UK.

Testosterone

min read

Can Testosterone Treatments Cause Swollen Feet? UK Guide

Can testosterone treatments cause swollen feet? Discover how TRT affects fluid retention, when to seek medical advice, management strategies, and alternative causes of peripheral oedema during testosterone therapy.

Are GLP-1 Medications Safe Whilst Breastfeeding? UK Guidance

Weight Loss

min read

Are GLP-1 Medications Safe Whilst Breastfeeding? UK Guidance

Are GLP-1 medications safe whilst breastfeeding? Discover current UK guidance on GLP-1 receptor agonists during lactation, safer alternatives for diabetes and weight management, and when to consult your GP for personalised advice.

Erectile Dysfunction

min read

Does Morning Wood Mean No Erectile Dysfunction? UK Guide

Does morning wood mean no erectile dysfunction? Discover what morning erections reveal about your erectile function, when to see your GP, and how UK clinicians assess and treat erectile difficulties.

Rybelsus and Phentermine Together: UK Safety Guide

GLP-1 Brands

min read

Rybelsus and Phentermine Together: UK Safety Guide

Combining Rybelsus and phentermine? Learn the risks, why it's not recommended in the UK, and which NICE-approved alternatives may suit you.

Normal HbA1c for Women: NHS Ranges, Results & When to Act

Weight Loss

min read

Normal HbA1c for Women: NHS Ranges, Results & When to Act

Normal HbA1c for women in the UK explained — discover NHS diagnostic thresholds, how pregnancy and anaemia affect results, and when to speak to your GP.

Birth Control and Allergy Medication: Safe Use Guide

Supplements

min read

Birth Control and Allergy Medication: Safe Use Guide

Discover whether birth control and allergy medication can be safely taken together. Learn which antihistamines and allergy treatments are compatible with hormonal contraceptives, understand potential interactions, and find out when to seek medical advice for reliable contraception during allergy season.

Does Fatty Liver Cause Pancreatitis? UK Medical Guide

Weight Loss

min read

Does Fatty Liver Cause Pancreatitis? UK Medical Guide

Does fatty liver cause pancreatitis? Discover the relationship between these two conditions, their shared risk factors, and when to seek medical advice. Expert UK guidance on NAFLD and pancreatitis.

How Do You Know If Retatrutide Is Working: Key Signs Explained

GLP-1 Brands

min read

How Do You Know If Retatrutide Is Working: Key Signs Explained

How do you know if retatrutide is working? Learn the key signs of response, what to monitor in the first weeks, clinical markers to track, and the current UK availability of this investigational weight-loss medicine.

Are Pomegranates Good for Fatty Liver? Evidence and Guidance

Weight Loss

min read

Are Pomegranates Good for Fatty Liver? Evidence and Guidance

Are pomegranates good for fatty liver? Discover what the evidence says about pomegranates for NAFLD, how their antioxidants may support liver health, and practical ways to include them in a liver-friendly diet alongside proven lifestyle strategies.

Grazing vs Three Meals a Day: Impact on HbA1c in Diabetes

Weight Loss

min read

Grazing vs Three Meals a Day: Impact on HbA1c in Diabetes

Grazing vs three meals a day: does meal frequency improve HbA1c in diabetes? Explore the evidence, NHS and NICE guidance, medication safety considerations, and practical advice for managing blood glucose.

How Much Calorie Deficit to Lose Weight Safely: NHS Guide

Weight Loss

min read

How Much Calorie Deficit to Lose Weight Safely: NHS Guide

How much calorie deficit to lose weight safely? Learn the NHS-recommended 500–600 kcal daily deficit, how to calculate your TDEE, and how to avoid the risks of cutting calories too aggressively.

How to Avoid Headaches During Intermittent Fasting: UK Guide

Weight Loss

min read

How to Avoid Headaches During Intermittent Fasting: UK Guide

How to avoid headaches during intermittent fasting — expert UK guidance on causes, prevention strategies, hydration, electrolytes, and when to seek medical advice.

Magnesium & Saxenda: Interactions & Safety Guide

GLP-1 Brands

min read

Magnesium & Saxenda: Interactions & Safety Guide

Taking magnesium with Saxenda (liraglutide)? Discover what the evidence says about interactions and how to supplement safely during weight management.

Should I Take Vitamin D or D3 Daily? UK Guidance

Supplements

min read

Should I Take Vitamin D or D3 Daily? UK Guidance

Should I take vitamin D or D3 daily? Discover NHS guidance on daily vitamin D supplementation, who needs it year-round, recommended doses, and how to choose the right supplement for bone and muscle health in the UK.

Tirzepatide Treatment for Obesity: UK Guide to Access and Effectiveness

Weight Loss

min read

Tirzepatide Treatment for Obesity: UK Guide to Access and Effectiveness

Discover how tirzepatide treatment for obesity works in the UK. Learn about eligibility criteria, clinical effectiveness, NHS access pathways, side effects, and what to expect from this dual-action weight management medication approved by NICE and MHRA.

Does Gynaecomastia Affect Fertility? Causes, Diagnosis and UK Treatment

Weight Loss

min read

Does Gynaecomastia Affect Fertility? Causes, Diagnosis and UK Treatment

Does gynaecomastia affect fertility? Learn how shared hormonal causes like hypogonadism and Klinefelter syndrome can link the two, plus UK diagnosis and treatment options.

Bolt Guides

Featured

Wegovy Pill UK: Approval, Eligibility, Dosing and Safety

Weight loss

Weight Loss Pills and Alcohol: Risks, Interactions and UK Guidance

Bio-Rad HPLC HbA1c Testing: NHS Laboratory Guide and NICE Guidance

Gastric Sleeve Surgery: How It Works, Eligibility and Long-Term Outcomes

GLP-1 Brands

Wegovy

Mounjaro

Rybelsus for Weight Loss: Evidence, Safety, and UK Prescribing Guidance

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

Retatrutide in Pill Form: What UK Patients Need to Know

How to Eat on Retatrutide: UK Dietary and Safety Guide

Men’s Health

Testosterone

Erectile dysfunction

Does Rybelsus Cause Erectile Dysfunction?

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

Can Testogel Make You Lethargic? Causes and Management

Can Testosterone Treatments Cause Swollen Feet? UK Guide

Browse all

Are GLP-1 Medications Safe Whilst Breastfeeding? UK Guidance

Does Morning Wood Mean No Erectile Dysfunction? UK Guide

Rybelsus and Phentermine Together: UK Safety Guide

Normal HbA1c for Women: NHS Ranges, Results & When to Act

Birth Control and Allergy Medication: Safe Use Guide

Does Fatty Liver Cause Pancreatitis? UK Medical Guide

How Do You Know If Retatrutide Is Working: Key Signs Explained

Are Pomegranates Good for Fatty Liver? Evidence and Guidance

Grazing vs Three Meals a Day: Impact on HbA1c in Diabetes

How Much Calorie Deficit to Lose Weight Safely: NHS Guide

How to Avoid Headaches During Intermittent Fasting: UK Guide

Magnesium & Saxenda: Interactions & Safety Guide

Should I Take Vitamin D or D3 Daily? UK Guidance

Tirzepatide Treatment for Obesity: UK Guide to Access and Effectiveness

Does Gynaecomastia Affect Fertility? Causes, Diagnosis and UK Treatment