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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Intermittent Fasting and Triglycerides: Evidence, Benefits, and UK Guidance

Weight Loss

min read

Intermittent Fasting and Triglycerides: Evidence, Benefits, and UK Guidance

Intermittent fasting and triglycerides: discover how IF affects blood fat levels, what NICE and NHS guidance says, who benefits most, and when to see your GP.

Gynecomastia Surgery for Bodybuilders: UK Guide to Treatment

Weight Loss

min read

Gynecomastia Surgery for Bodybuilders: UK Guide to Treatment

Gynecomastia surgery for bodybuilders explained: causes, surgical options, UK costs, recovery timelines, and how to find a qualified plastic surgeon. Read our expert guide.

Why Is My HbA1c Going Up? Causes, Medicines, and Next Steps

Weight Loss

min read

Why Is My HbA1c Going Up? Causes, Medicines, and Next Steps

Why is my HbA1c going up? Discover the common causes of a rising HbA1c — from diet and lifestyle to medicines and medical conditions — plus NHS-aligned advice on when to see your GP and how to lower it safely.

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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

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

1 month retatrutide results explained: what Phase 2 trial data shows about early weight loss, common side effects, realistic expectations, and UK regulatory status in 2025.

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1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

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.

Cagri Peptide With Retatrutide: UK Evidence, Safety and Availability

GLP-1 Brands

min read

Cagri Peptide With Retatrutide: UK Evidence, Safety and Availability

Cagri peptide with retatrutide explained: how these investigational obesity medicines work, what the clinical evidence shows, UK safety guidance, and how to access treatments through regulated NHS pathways.

Retatrutide Injections: UK Guide to Administration, Dosing, and Safety

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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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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Erectile Dysfunction

min read

Does Ibuprofen Affect Erectile Dysfunction? UK Evidence Review

Does ibuprofen affect erectile dysfunction? Explore the evidence on NSAIDs and ED, understand established causes of erectile problems, learn which medications can impact sexual function, and discover when to seek medical advice from your GP.

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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.

Testosterone

min read

Can You Take Testosterone After Prostate Cancer Treatment? UK Guidance

Can you take testosterone after prostate cancer treatment? Discover current UK guidance, eligibility criteria, risks and benefits, and essential monitoring requirements for testosterone replacement therapy following prostate cancer.

What Will 3 Days Without Testogel Do to Me?

Testosterone

min read

What Will 3 Days Without Testogel Do to Me?

What will 3 days without Testogel do to me? Discover how missing doses affects testosterone levels, what symptoms to expect within 72 hours, when to contact your GP, and how to safely resume treatment for hypogonadism.

Bariatric Surgery for Type 2 Diabetes: Remission & NHS Guide

Weight Loss

min read

Bariatric Surgery for Type 2 Diabetes: Remission & NHS Guide

Can bariatric surgery put type 2 diabetes into remission? Explore NHS eligibility, surgical options, remission rates, and long-term outcomes.

Allergy Medication and Erection Problems: Causes, Risks & NHS Guidance

Supplements

min read

Allergy Medication and Erection Problems: Causes, Risks & NHS Guidance

Can allergy medication affect erection? Learn which antihistamines and decongestants may cause erectile dysfunction, how they work, and what NHS and NICE guidance recommends for safer alternatives.

What Are the Worst Side Effects of Trulicity? UK Guide

GLP-1 Brands

min read

What Are the Worst Side Effects of Trulicity? UK Guide

What are the worst side effects of Trulicity? Discover the serious adverse effects of dulaglutide, including pancreatitis and kidney injury, plus practical management strategies for common gastrointestinal symptoms. Essential UK guidance for safe use.

Mounjaro

min read

Does Mounjaro Cause Hot Flushes? UK Evidence and Guidance

Does Mounjaro cause hot flushes? Explore the evidence on tirzepatide and vasomotor symptoms, understand what UK clinical data shows, and discover practical management strategies if you experience hot flushes during treatment.

Erectile Dysfunction

min read

Does Fatigue Cause Erectile Dysfunction? Understanding the Link

Does fatigue cause erectile dysfunction? Discover how chronic tiredness affects sexual function through hormonal, vascular, and psychological pathways. Learn about underlying medical conditions, when to seek help, and evidence-based treatment options to improve both energy levels and erectile function.

Retatrutide Fridge Storage: What You Need to Know

GLP-1 Brands

min read

Retatrutide Fridge Storage: What You Need to Know

Retatrutide storage in the fridge explained: why no confirmed shelf-life exists yet, correct refrigeration conditions, signs of degradation, and what to do if the product is left out of the fridge.

Does Stomach Growling Mean Calorie Deficit? The Truth Explained

Weight Loss

min read

Does Stomach Growling Mean Calorie Deficit? The Truth Explained

Does stomach growling mean calorie deficit? Discover the truth behind stomach rumbling, what it really indicates about your energy balance, and how to recognise genuine hunger signals for healthy weight management.

Best Food Sources of Omega-3: Fish & Plant Options

Supplements

min read

Best Food Sources of Omega-3: Fish & Plant Options

Discover the best omega-3 foods, from salmon to flaxseeds, plus daily intake tips aligned with NHS guidance.

Can You Get Vitamin D From the Sun After 4pm in the UK?

Supplements

min read

Can You Get Vitamin D From the Sun After 4pm in the UK?

Can you get vitamin D from the sun after 4pm in the UK? Discover how sun angle, time of day, and season affect vitamin D synthesis, plus guidance on optimal exposure times and alternative sources to maintain healthy levels throughout the year.

Gastric Lap Band Removal: Reasons, Procedure, Recovery and Next Steps

Weight Loss

min read

Gastric Lap Band Removal: Reasons, Procedure, Recovery and Next Steps

Gastric lap band removal explained: find out why it's needed, what the procedure involves, recovery advice, risks, and your weight management options afterwards, including NHS and NICE guidance.

Mounjaro

min read

Mounjaro and Birth Control: Contraception Safety Guide

Discover how Mounjaro and birth control interact, which contraceptive methods remain effective with tirzepatide, and essential precautions to prevent unintended pregnancy during treatment.

How to Calculate HbA1c Levels: NHS Ranges and Diabetes Management

Weight Loss

min read

How to Calculate HbA1c Levels: NHS Ranges and Diabetes Management

How to calculate HbA1c levels explained: understand IFCC mmol/mol values, NHS reference ranges, what affects accuracy, and NICE-recommended management for diabetes and prediabetes.

Symptoms of CoQ10 Deficiency: Recognition and Management

Supplements

min read

Symptoms of CoQ10 Deficiency: Recognition and Management

Discover the key symptoms of CoQ10 deficiency, including muscle weakness, fatigue, cardiac problems, and neurological signs. Learn who is at risk, how deficiency is diagnosed in the UK, and evidence-based treatment options under medical supervision.

Hair Loss

min read

Does Skyrizi Cause Hair Loss? UK Clinical Evidence Explained

Does Skyrizi cause hair loss? Learn what UK clinical trial data and MHRA guidance say about risankizumab and alopecia, plus when to seek advice from your specialist.

Do You Lose Muscle in a Calorie Deficit? Evidence-Based Guide

Weight Loss

min read

Do You Lose Muscle in a Calorie Deficit? Evidence-Based Guide

Do you lose muscle in a calorie deficit? Discover evidence-based strategies to preserve muscle mass during weight loss, including optimal protein intake, resistance training, and safe deficit levels recommended by UK health guidelines.

Bolt Guides

Featured

Wegovy Pill UK: Approval, Eligibility, Dosing and Safety

Weight loss

Intermittent Fasting and Triglycerides: Evidence, Benefits, and UK Guidance

Gynecomastia Surgery for Bodybuilders: UK Guide to Treatment

Why Is My HbA1c Going Up? Causes, Medicines, and Next Steps

GLP-1 Brands

Wegovy

Mounjaro

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

Cagri Peptide With Retatrutide: UK Evidence, Safety and Availability

Retatrutide Injections: UK Guide to Administration, Dosing, and Safety

Men’s Health

Testosterone

Erectile dysfunction

Does Ibuprofen Affect Erectile Dysfunction? UK Evidence Review

Can Testosterone Treatments Cause Swollen Feet? UK Guide

Can You Take Testosterone After Prostate Cancer Treatment? UK Guidance

What Will 3 Days Without Testogel Do to Me?

Browse all

Bariatric Surgery for Type 2 Diabetes: Remission & NHS Guide

Allergy Medication and Erection Problems: Causes, Risks & NHS Guidance

What Are the Worst Side Effects of Trulicity? UK Guide

Does Mounjaro Cause Hot Flushes? UK Evidence and Guidance

Does Fatigue Cause Erectile Dysfunction? Understanding the Link

Retatrutide Fridge Storage: What You Need to Know

Does Stomach Growling Mean Calorie Deficit? The Truth Explained

Best Food Sources of Omega-3: Fish & Plant Options

Can You Get Vitamin D From the Sun After 4pm in the UK?

Gastric Lap Band Removal: Reasons, Procedure, Recovery and Next Steps

Mounjaro and Birth Control: Contraception Safety Guide

How to Calculate HbA1c Levels: NHS Ranges and Diabetes Management

Symptoms of CoQ10 Deficiency: Recognition and Management

Does Skyrizi Cause Hair Loss? UK Clinical Evidence Explained

Do You Lose Muscle in a Calorie Deficit? Evidence-Based Guide

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