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

Read all on weight loss

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.

Which Type of Tissue Is More Metabolically Active?

Weight Loss

min read

Which Type of Tissue Is More Metabolically Active?

Which type of tissue is more metabolically active? Discover how the brain, heart, kidneys, liver, and brown fat compare in metabolic rate, and learn the clinical implications for diagnosis, treatment, and weight management in UK healthcare.

Is Vitamin B12 Water-Soluble? Absorption, Storage and Safety

Supplements

min read

Is Vitamin B12 Water-Soluble? Absorption, Storage and Safety

Is vitamin B12 water-soluble? Discover how B12's water-soluble nature affects absorption, storage, daily requirements, and supplementation. Essential guidance for patients at risk of deficiency, including vegans and older adults.

Gastric Band Surgery and Niacin Deficiency: Risks, Symptoms and NHS Guidance

Weight Loss

min read

Gastric Band Surgery and Niacin Deficiency: Risks, Symptoms and NHS Guidance

Gastric band surgery can increase the risk of niacin deficiency — find out why it happens, how to spot the symptoms, and what NHS guidance recommends for monitoring and supplementation.

Natto Vitamin K: Content, Health Effects and UK Safety Guidance

Supplements

min read

Natto Vitamin K: Content, Health Effects and UK Safety Guidance

Discover why natto is exceptionally high in vitamin K2, how much it contains per serving, and crucial safety guidance for UK patients—especially those taking warfarin or other anticoagulants.

Erectile Dysfunction

min read

Does Guanfacine Cause Erectile Dysfunction? UK Evidence and Guidance

Does guanfacine cause erectile dysfunction? Explore the evidence, mechanisms, and what to do if you experience sexual side effects on this ADHD medication. Expert UK guidance for patients and clinicians.

Benefits of Eating Fish: Nutrition, Health & Safety

Supplements

min read

Benefits of Eating Fish: Nutrition, Health & Safety

Discover the health benefits of eating fish, including omega-3s, heart and brain support, NHS portion guidance, and safety tips for all ages.

Can I Gain Muscle Mass in a Calorie Deficit? UK Guide

Weight Loss

min read

Can I Gain Muscle Mass in a Calorie Deficit? UK Guide

Can you gain muscle mass in a calorie deficit? Discover who can build muscle whilst losing fat, how protein and training optimise body recomposition, and realistic expectations for simultaneous muscle gain and weight loss based on UK clinical guidance.

Amiodarone and Gynaecomastia: Causes, Risks, and Management

Weight Loss

min read

Amiodarone and Gynaecomastia: Causes, Risks, and Management

Does amiodarone cause gynaecomastia? Learn how amiodarone-induced thyroid dysfunction may trigger breast tissue enlargement in men, what monitoring is needed, and when to see your GP.

Can B12 Vitamins Cause Acne? Evidence and Management

Supplements

min read

Can B12 Vitamins Cause Acne? Evidence and Management

Can B12 vitamins cause acne? Discover how vitamin B12 supplements may trigger breakouts in some people, the science behind this effect, who is most at risk, and how to manage acne whilst maintaining necessary B12 treatment safely.

Resveratrol Side Effects on the Liver: Safety and Risks

Supplements

min read

Resveratrol Side Effects on the Liver: Safety and Risks

Discover the truth about resveratrol side effects on the liver. Learn about potential hepatotoxicity risks, safety precautions, when to seek medical advice, and how to use resveratrol supplements safely in the UK.

Erectile Dysfunction

min read

Does Aricept Cause Erectile Dysfunction? UK Evidence and Guidance

Does Aricept cause erectile dysfunction? Explore the evidence, other contributing factors in dementia, and practical steps to manage sexual health concerns while taking donepezil. UK guidance included.

Hair Loss

min read

Spironolactone and Hair Loss: UK Guide for Women

Spironolactone for hair loss: find out how this off-label anti-androgen treatment works for women with female-pattern hair loss, who qualifies, side effects, dosage, and NHS alternatives.

B12 Deficiency Foods to Avoid: Dietary Patterns and Medical Guidance

Supplements

min read

B12 Deficiency Foods to Avoid: Dietary Patterns and Medical Guidance

Discover which foods and dietary patterns may affect B12 absorption and increase deficiency risk. Learn when to seek medical advice, understand vegan and vegetarian considerations, and find evidence-based guidance on maintaining healthy B12 levels through diet.

Almond Butter for Fatty Liver: Benefits, Risks & UK Guidance

Weight Loss

min read

Almond Butter for Fatty Liver: Benefits, Risks & UK Guidance

Can almond butter help with fatty liver disease? Discover the evidence behind almond butter for fatty liver, including nutritional benefits, practical dietary tips, portion guidance, and important safety considerations aligned with UK clinical guidance.

Fruits Rich in Magnesium: Top Sources and Daily Requirements

Supplements

min read

Fruits Rich in Magnesium: Top Sources and Daily Requirements

Discover which fruits are rich in magnesium and how they support your health. Learn about avocados, bananas, figs, berries, and other magnesium-containing fruits, plus daily requirements and practical dietary tips for UK adults.

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

Which Type of Tissue Is More Metabolically Active?

Is Vitamin B12 Water-Soluble? Absorption, Storage and Safety

Gastric Band Surgery and Niacin Deficiency: Risks, Symptoms and NHS Guidance

Natto Vitamin K: Content, Health Effects and UK Safety Guidance

Does Guanfacine Cause Erectile Dysfunction? UK Evidence and Guidance

Benefits of Eating Fish: Nutrition, Health & Safety

Can I Gain Muscle Mass in a Calorie Deficit? UK Guide

Amiodarone and Gynaecomastia: Causes, Risks, and Management

Can B12 Vitamins Cause Acne? Evidence and Management

Resveratrol Side Effects on the Liver: Safety and Risks

Does Aricept Cause Erectile Dysfunction? UK Evidence and Guidance

Spironolactone and Hair Loss: UK Guide for Women

B12 Deficiency Foods to Avoid: Dietary Patterns and Medical Guidance

Almond Butter for Fatty Liver: Benefits, Risks & UK Guidance

Fruits Rich in Magnesium: Top Sources and Daily Requirements

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