Bolt Guides

Expert insights on weight loss and more.

Featured

Fish Oil Pills & Weight Loss: What the Evidence Says

Supplements

min read

Fish Oil Pills & Weight Loss: What the Evidence Says

Can fish oil supplements support weight loss? We review the evidence on omega-3 capsules, benefits, side effects, and UK guidance to help you decide.

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Weight loss

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Weight Loss

min read

Lemon Pills for Weight Loss: Evidence, Safety, and NHS Alternatives

Lemon pills for weight loss: do they work? Explore the evidence, UK regulations, safety considerations, and NHS-approved alternatives to make an informed decision.

Treatment of Genetic Obesity: Targeted Therapies and NHS Care

Weight Loss

min read

Treatment of Genetic Obesity: Targeted Therapies and NHS Care

Discover how treatment of genetic obesity has been transformed by targeted therapies for rare inherited forms. Learn about diagnosis, licensed medications like setmelanotide, specialist NHS services, and comprehensive management approaches for monogenic obesity conditions.

Spironolactone and Gynaecomastia: Causes, Risks, and Management Options

Weight Loss

min read

Spironolactone and Gynaecomastia: Causes, Risks, and Management Options

Spironolactone causes gynaecomastia by blocking androgen receptors and shifting the oestrogen-to-androgen ratio in breast tissue. Learn how it happens, how common it is, and what your options are.

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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

How to Wean Off Rybelsus Safely: UK Clinical Guidance

Learn how to wean off Rybelsus safely with expert guidance on stopping semaglutide, managing blood sugar after discontinuation, and maintaining diabetes control. Essential UK clinical advice for patients and healthcare professionals.

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How to Wean Off Rybelsus Safely: UK Clinical Guidance

Type 2 Diabetes Trulicity: Dosage, Eligibility & Side Effects UK

GLP-1 Brands

min read

Type 2 Diabetes Trulicity: Dosage, Eligibility & Side Effects UK

Discover how Trulicity (dulaglutide) helps manage type 2 diabetes with once-weekly injections. Learn about dosing, eligibility, side effects, and NICE guidance for UK patients seeking better blood glucose control.

Retatrutide Triple Receptor Agonist: Mechanism, Evidence, and UK Status

GLP-1 Brands

min read

Retatrutide Triple Receptor Agonist: Mechanism, Evidence, and UK Status

Retatrutide triple receptor agonist explained: how it works, Phase 2 trial results, side effects, and UK regulatory status. Find out what the evidence says and what to expect next.

Ozempic Effects on the Body: How Semaglutide Works

GLP-1 Brands

min read

Ozempic Effects on the Body: How Semaglutide Works

Discover how Ozempic affects blood sugar, weight & heart health. Learn side effects & safe usage with expert UK 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

What Is the Best Vacuum Device for Erectile Dysfunction?

What is the best vacuum device for erectile dysfunction? Discover how vacuum erection devices work, which features matter most, how to access clinically tested VEDs through the NHS, and what the evidence shows about effectiveness and safety for treating ED.

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Testosterone

min read

How Many Days of Testosterone Gel Pump Treatment Are Needed?

How many days of testosterone gel pump treatment do you need? Discover why testosterone replacement therapy isn't measured in days but requires long-term management. Learn about treatment timelines, monitoring schedules, and when to review your therapy with evidence-based UK guidance.

Does Testogel Make Your Penis Larger? Evidence and Facts

Testosterone

min read

Does Testogel Make Your Penis Larger? Evidence and Facts

Does Testogel make your penis larger? Discover the evidence-based answer about testosterone therapy and penis size, plus realistic effects on male sexual health and when to seek medical advice.

How to Use Testogel for Women: Dosage, Application and Safety

Testosterone

min read

How to Use Testogel for Women: Dosage, Application and Safety

Learn how to use Testogel for women safely, including application technique, dosage guidelines, monitoring requirements, and potential side effects. Expert guidance on off-label testosterone therapy for postmenopausal women with HSDD.

Retatrutide and Heart Issues: Cardiovascular Effects, Risks, and Safety

GLP-1 Brands

min read

Retatrutide and Heart Issues: Cardiovascular Effects, Risks, and Safety

Retatrutide and heart issues explained: learn about cardiovascular effects, who faces greater cardiac risk, current trial safety data, and when to seek medical advice in the UK.

Is Fish Good for You? Health Benefits Explained

Supplements

min read

Is Fish Good for You? Health Benefits Explained

Discover why fish is one of the healthiest foods you can eat. NHS-backed guidance on portions, oily fish benefits, and safety tips for all life stages.

How Much Testogel Is Absorbed: Absorption Rates and Optimisation

Testosterone

min read

How Much Testogel Is Absorbed: Absorption Rates and Optimisation

Discover how much Testogel is absorbed through the skin, with clinical evidence showing 9–14% systemic absorption. Learn about factors affecting testosterone gel bioavailability, application techniques to optimise absorption, and what to do if absorption seems inadequate. Expert guidance for UK patients.

Does High B12 Mean Cancer? Understanding Elevated Vitamin B12 Levels

Supplements

min read

Does High B12 Mean Cancer? Understanding Elevated Vitamin B12 Levels

Does high B12 mean cancer? Understand the link between elevated vitamin B12 levels and malignancy, explore common benign causes, and learn when to seek medical advice about hypercobalaminaemia.

CoQ10 Benefits for Men: Evidence, Dosage and Safety Guidance

Supplements

min read

CoQ10 Benefits for Men: Evidence, Dosage and Safety Guidance

Discover evidence-based CoQ10 benefits for men, including cardiovascular health, fertility support, and energy production. Learn about recommended dosages, safety considerations, and UK clinical guidance on supplementation.

Does Tadalafil Delay Ejaculation? Evidence & Options

Erectile Dysfunction

min read

Does Tadalafil Delay Ejaculation? Evidence & Options

Tadalafil isn't licensed for premature ejaculation, but can it help? Explore the evidence, UK-licensed PE treatments, and when to speak to your GP.

Peak Performance NMN + Resveratrol: UK Evidence and Safety Guide

Supplements

min read

Peak Performance NMN + Resveratrol: UK Evidence and Safety Guide

Discover the science behind Peak Performance NMN + Resveratrol supplements. Learn about mechanisms, clinical evidence, safety considerations, UK regulatory status, and whether these anti-ageing compounds deliver proven health benefits for British consumers.

Saxenda & Gallstones: Risks, Symptoms & Prevention

GLP-1 Brands

min read

Saxenda & Gallstones: Risks, Symptoms & Prevention

Find out how Saxenda and rapid weight loss can raise gallstone risk, what symptoms to watch for, and how to protect your gallbladder during treatment.

Obesity Causes, Treatment and BMI: Complete UK Guide

Weight Loss

min read

Obesity Causes, Treatment and BMI: Complete UK Guide

Comprehensive guide to obesity causes, treatment and BMI in the UK. Learn how obesity is diagnosed, what causes it, health risks, and NHS treatment options including lifestyle changes, medication and surgery.

What Is NAD Good For? Benefits, Safety and UK Guidance

Supplements

min read

What Is NAD Good For? Benefits, Safety and UK Guidance

Discover what NAD is good for, including its role in energy production, metabolic health, and cellular ageing. Learn about NAD+ supplementation, safety, side effects, and UK regulatory status for nicotinamide riboside and NMN.

Calorie Deficit and Skinny Fat: How to Improve Body Composition

Weight Loss

min read

Calorie Deficit and Skinny Fat: How to Improve Body Composition

Calorie deficit and skinny fat explained: understand normal weight obesity, why cutting calories alone may backfire, and how to improve body composition safely with UK-aligned guidance.

Is Saxenda Safe for Pregnancy? UK Guidance Explained

GLP-1 Brands

min read

Is Saxenda Safe for Pregnancy? UK Guidance Explained

Is Saxenda safe for pregnancy? Discover why this weight management medication is not recommended during pregnancy, what to do if you conceive whilst taking it, and essential pre-conception planning advice for women using liraglutide.

Does Decline Bench Press Help Gynaecomastia? UK Medical Guide

Weight Loss

min read

Does Decline Bench Press Help Gynaecomastia? UK Medical Guide

Does decline bench press help gynaecomastia? Learn whether chest exercises can reduce enlarged male breast tissue, what the NHS recommends, and when to seek medical advice.

Erectile Dysfunction

min read

Do Muscle Relaxants Help with Erectile Dysfunction? Evidence and Alternatives

Do muscle relaxants help with erectile dysfunction? Discover the evidence on muscle relaxants and ED, why they may worsen rather than improve sexual function, and which proven treatments actually work for erectile problems.

Energy and Metabolism: How Your Body's Fuel System Works

Weight Loss

min read

Energy and Metabolism: How Your Body's Fuel System Works

Understand energy and metabolism, from anabolic vs catabolic processes to metabolic disorders and ways to support a healthy metabolic rate.

Bolt Guides

Featured

Fish Oil Pills & Weight Loss: What the Evidence Says

Weight loss

Lemon Pills for Weight Loss: Evidence, Safety, and NHS Alternatives

Treatment of Genetic Obesity: Targeted Therapies and NHS Care

Spironolactone and Gynaecomastia: Causes, Risks, and Management Options

GLP-1 Brands

Wegovy

Mounjaro

How to Wean Off Rybelsus Safely: UK Clinical Guidance

Type 2 Diabetes Trulicity: Dosage, Eligibility & Side Effects UK

Retatrutide Triple Receptor Agonist: Mechanism, Evidence, and UK Status

Ozempic Effects on the Body: How Semaglutide Works

Men’s Health

Testosterone

Erectile dysfunction

What Is the Best Vacuum Device for Erectile Dysfunction?

How Many Days of Testosterone Gel Pump Treatment Are Needed?

Does Testogel Make Your Penis Larger? Evidence and Facts

How to Use Testogel for Women: Dosage, Application and Safety

Browse all

Retatrutide and Heart Issues: Cardiovascular Effects, Risks, and Safety

Is Fish Good for You? Health Benefits Explained

How Much Testogel Is Absorbed: Absorption Rates and Optimisation

Does High B12 Mean Cancer? Understanding Elevated Vitamin B12 Levels

CoQ10 Benefits for Men: Evidence, Dosage and Safety Guidance

Does Tadalafil Delay Ejaculation? Evidence & Options

Peak Performance NMN + Resveratrol: UK Evidence and Safety Guide

Saxenda & Gallstones: Risks, Symptoms & Prevention

Obesity Causes, Treatment and BMI: Complete UK Guide

What Is NAD Good For? Benefits, Safety and UK Guidance

Calorie Deficit and Skinny Fat: How to Improve Body Composition

Is Saxenda Safe for Pregnancy? UK Guidance Explained

Does Decline Bench Press Help Gynaecomastia? UK Medical Guide

Do Muscle Relaxants Help with Erectile Dysfunction? Evidence and Alternatives

Energy and Metabolism: How Your Body's Fuel System Works

Personalized weight management for women