Bolt Guides

How do weight loss pills work? Discover the science behind UK-licensed anti-obesity medications including orlistat and semaglutide, NHS eligibility criteria, side effects, and how to talk to your GP.

Weight Loss

min read

Weight Loss Pills & Shakes: UK Safety Guide

Orlistat, meal replacement shakes and the new oral Wegovy pill: NHS-aligned guidance on evidence, MHRA safety, side effects and when to see your GP.

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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

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

Weight Loss Pill Naltrexone: How Mysimba Works in the UK

GLP-1 Brands

min read

Weight Loss Pill Naltrexone: How Mysimba Works in the UK

Weight loss pill naltrexone (Mysimba) explained: how it works, who qualifies, dosage and side effects, plus how it compares with the new oral Wegovy pill.

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

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.

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.

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

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.

Supplements

min read

Fish Oil Benefits: What Is It Good For?

Explore the evidence-based benefits of fish oil, from triglycerides to joint health. Learn about EPA, DHA, safe dosing, and UK clinical guidance.

Red Wine with Most Resveratrol: Varieties, Limits & Safer Alternatives

Supplements

min read

Red Wine with Most Resveratrol: Varieties, Limits & Safer Alternatives

Discover which red wine contains the most resveratrol, why bioavailability limits health benefits, and safer alternatives. Evidence-based UK guidance on resveratrol, wine varieties, and cardiovascular health without alcohol risks.

Can Testogel Cause Nausea? Evidence and Clinical Guidance

Testosterone

min read

Can Testogel Cause Nausea? Evidence and Clinical Guidance

Can Testogel cause nausea? Discover the evidence on testosterone gel and gastrointestinal symptoms, when to seek medical advice, and practical management strategies for patients using Testogel in the UK.

Hair Loss

min read

Male Pattern Hair Loss: Causes, Stages & Treatments

Understand androgenetic alopecia: Norwood–Hamilton stages, finasteride, minoxidil and UK clinical guidance from the BAD and NHS. Find out when to see a GP.

Are Macadamia Nuts Good for Fatty Liver? UK Evidence Review

Weight Loss

min read

Are Macadamia Nuts Good for Fatty Liver? UK Evidence Review

Are macadamia nuts good for fatty liver disease? Discover how their unique nutritional profile may support liver health, appropriate portion sizes for NAFLD management, and evidence-based dietary strategies. Expert UK guidance on incorporating macadamias into a liver-healthy eating pattern.

Allergy Medication Safe for Liver Cirrhosis: UK Guidance and Options

Supplements

min read

Allergy Medication Safe for Liver Cirrhosis: UK Guidance and Options

Allergy medication safe for liver cirrhosis — find out which antihistamines, nasal sprays, and treatments are safer, which to avoid, and what UK guidance recommends for managing allergies with liver disease.

Hair Loss

min read

DMDM Hydantoin Hair Loss: Evidence, Risks, and UK Guidance

DMDM hydantoin hair loss: is there a proven link? Explore the current evidence, UK regulations, how to spot scalp reactions, and expert advice on choosing safer hair products.

B12 Iron Deficiency Nails: Signs, Testing and Treatment

Supplements

min read

B12 Iron Deficiency Nails: Signs, Testing and Treatment

Discover how B12 and iron deficiency affect your nails, causing brittleness, spoon-shaped changes, and discolouration. Learn to recognise deficiency signs, understand NHS testing options, and find effective treatments to restore nail health through proper nutrition and supplementation.

Chest Workout for Gynaecomastia: Exercises, Lifestyle Tips and NHS Treatment

Weight Loss

min read

Chest Workout for Gynaecomastia: Exercises, Lifestyle Tips and NHS Treatment

Chest workout for gynaecomastia: discover which exercises improve chest definition, what lifestyle changes help, and when to see your GP about enlarged breast tissue in men.

Can I Use Testogel When I Come Off Steroids? UK Medical Guidance

Testosterone

min read

Can I Use Testogel When I Come Off Steroids? UK Medical Guidance

Can I use Testogel when I come off steroids? Discover why Testogel is generally not recommended immediately after stopping anabolic steroids, when it might be appropriate, and what medical assessment is required. UK guidance on testosterone recovery and safer alternatives explained.

Weight Loss

min read

Fluoxetine and Weight Loss Pills: Safety, Risks & Alternatives

Can you take fluoxetine with weight loss pills, including the new oral Wegovy pill? Learn the interaction risks, serotonin syndrome signs and safe alternatives.

How to Tell If You Have Gynaecomastia: Signs, Causes & Treatment

Weight Loss

min read

How to Tell If You Have Gynaecomastia: Signs, Causes & Treatment

Wondering how to tell if you have gynaecomastia? Learn the key signs, causes, and when to see a GP, with guidance aligned to NHS and NICE recommendations.

Can You Eat Popcorn During Intermittent Fasting? UK Guide

Weight Loss

min read

Can You Eat Popcorn During Intermittent Fasting? UK Guide

Can you eat popcorn during intermittent fasting? Find out whether popcorn breaks your fast, its nutritional impact, and when it's safe to enjoy — with UK-aligned NHS and BDA guidance.

Mounjaro

min read

Mounjaro and Vitamin C: Safety, Interactions, and Guidance

Can you take Mounjaro and vitamin C together? Discover the safety, potential interactions, and expert guidance on combining tirzepatide with vitamin C supplements for type 2 diabetes management.

Erectile Dysfunction

min read

Does Cocaine Give You Erectile Dysfunction? Effects and Recovery

Does cocaine give you erectile dysfunction? Discover how cocaine impairs erectile function through vascular, neurological, and psychological mechanisms, evidence on recovery after stopping use, and how to access NHS support for cocaine-related sexual health concerns.

Bolt Guides

Featured

Oral Incretin Mimetics Available in the UK

Weight loss

Oral Incretin Mimetics Available in the UK

How Weight Loss Pills Work: UK Guide to Anti-Obesity Medications

Weight Loss Pills & Shakes: UK Safety Guide

GLP-1 Brands

Wegovy

Mounjaro

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

Weight Loss Pill Naltrexone: How Mysimba Works in the UK

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

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

Fish Oil Benefits: What Is It Good For?

Red Wine with Most Resveratrol: Varieties, Limits & Safer Alternatives

Can Testogel Cause Nausea? Evidence and Clinical Guidance

Male Pattern Hair Loss: Causes, Stages & Treatments

Are Macadamia Nuts Good for Fatty Liver? UK Evidence Review

Allergy Medication Safe for Liver Cirrhosis: UK Guidance and Options

DMDM Hydantoin Hair Loss: Evidence, Risks, and UK Guidance

B12 Iron Deficiency Nails: Signs, Testing and Treatment

Chest Workout for Gynaecomastia: Exercises, Lifestyle Tips and NHS Treatment

Can I Use Testogel When I Come Off Steroids? UK Medical Guidance

Fluoxetine and Weight Loss Pills: Safety, Risks & Alternatives

How to Tell If You Have Gynaecomastia: Signs, Causes & Treatment

Can You Eat Popcorn During Intermittent Fasting? UK Guide

Mounjaro and Vitamin C: Safety, Interactions, and Guidance

Does Cocaine Give You Erectile Dysfunction? Effects and Recovery

Personalized weight management for women