Bolt Guides

Expert insights on weight loss and more.

Featured

Wegovy

min read

Wegovy Pill UK: Licensing, Eligibility, Safety and Oral Alternatives

Wegovy pill: does an oral version exist in the UK? Learn about current licensing, NHS eligibility, safe use, side effects, and licensed oral alternatives for weight management.

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Weight loss

Read all on weight loss

Non-Invasive Blood Glucose Meters: UK Evidence, Regulation & Guidance

Weight Loss

min read

Non-Invasive Blood Glucose Meters: UK Evidence, Regulation & Guidance

Non-invasive blood glucose meters claim to measure glucose without finger-prick testing — but are they safe and approved in the UK? Learn about the technology, MHRA regulatory status, and NHS-recommended alternatives.

Blood Glucose Readings for Non-Diabetics: UK Normal Ranges Explained

Weight Loss

min read

Blood Glucose Readings for Non-Diabetics: UK Normal Ranges Explained

Blood glucose readings for non-diabetics explained: discover normal UK ranges, how tests work, what affects your results, and when to see your GP. Evidence-based NHS guidance.

Is Diarrhoea Normal After Gastric Sleeve? Causes and Recovery Tips

Weight Loss

min read

Is Diarrhoea Normal After Gastric Sleeve? Causes and Recovery Tips

Is diarrhoea normal after gastric sleeve surgery? Learn why loose stools occur, how long they last, practical management tips, and when to seek medical advice in the UK.

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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.

Read Mounjaro guides

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.

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Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

Retatrutide and Testosterone: Interactions, Safety, and UK Guidance

GLP-1 Brands

min read

Retatrutide and Testosterone: Interactions, Safety, and UK Guidance

Can you take retatrutide with testosterone? Explore the potential interactions, hormonal effects, safety considerations, and UK clinical guidance on using these two treatments together.

Retatrutide Peptide vs Tesamorelin: Mechanisms, Evidence, and UK Availability

GLP-1 Brands

min read

Retatrutide Peptide vs Tesamorelin: Mechanisms, Evidence, and UK Availability

Retatrutide peptide vs tesamorelin: understand how these two compounds differ in mechanism, clinical evidence, safety, and UK regulatory status before considering either option.

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.

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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 Nattokinase Help with Erectile Dysfunction? Evidence Review

Does nattokinase help with erectile dysfunction? Discover what the clinical evidence actually shows about this supplement, its safety considerations, and the proven treatments recommended by NICE for ED.

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Testosterone

min read

Calorie Deficit Effect on Testosterone: What the Evidence Shows

Calorie deficit effect on testosterone explained — learn how energy restriction affects hormone levels, warning signs to watch for, and evidence-based steps to protect testosterone while losing weight safely.

Testosterone

min read

Will Your Clitoris Stay the Same After Stopping Testosterone Treatment?

Will your clitoris stay the same after stopping testosterone treatment? Discover what happens to clitoral size, sensitivity, and function when testosterone therapy ends, which changes persist, and when to seek medical advice.

Will Erectile Strength Last on Testogel? UK Medical Guidance

Testosterone

min read

Will Erectile Strength Last on Testogel? UK Medical Guidance

Will erectile benefits from Testogel last long-term? Discover how testosterone gel affects erectile function, what influences sustained results, when to expect changes, and how to maintain benefits safely under UK medical guidance.

What Does Metabolise Mean? UK Medical Guide to Drug Metabolism

Weight Loss

min read

What Does Metabolise Mean? UK Medical Guide to Drug Metabolism

What does metabolise mean? Discover how your body transforms medicines and food through metabolism, why it matters for treatment safety, and when metabolic differences affect your health. Expert UK medical guidance.

Testosterone

min read

Is Testogel Body Identical? UK Guide to Bioidentical Testosterone

Is Testogel body identical? Yes—Testogel contains bioidentical testosterone with the same molecular structure as your body's natural hormone. Learn how it works, safety considerations, and what body identical really means for testosterone replacement therapy in the UK.

Choline Inositol Fatty Liver: Evidence, Dosage and NHS Guidance

Weight Loss

min read

Choline Inositol Fatty Liver: Evidence, Dosage and NHS Guidance

Can choline and inositol help treat fatty liver disease? Explore the evidence, NHS guidance, dosage, and safety of these supplements for NAFLD, plus proven lifestyle interventions recommended by NICE.

Hair Loss

min read

What Medications Can Cause Hair Loss: A UK Clinical Guide

What medications can cause hair loss? Discover which drug classes are linked to alopecia, how to tell drug-induced hair loss apart from other causes, and what to do next — with UK clinical guidance.

Topical Vitamin K Cream: Side Effects & Skin Uses

Supplements

min read

Topical Vitamin K Cream: Side Effects & Skin Uses

Learn about topical vitamin K cream side effects including irritation, redness and contact dermatitis, plus how it works and what the evidence says.

Erectile Dysfunction

min read

Sunflower Seeds & Erectile Dysfunction: The Evidence

Can sunflower seeds cause erectile dysfunction? Explore the evidence, their nutritional profile, and what actually causes ED in men.

High Protein Calorie Deficit Meal Plan: UK Evidence-Based Guide

Weight Loss

min read

High Protein Calorie Deficit Meal Plan: UK Evidence-Based Guide

High protein calorie deficit meal plans explained — discover how much protein you need, a sample 1,600–1,800 kcal day plan, the best food sources, and when to see a dietitian. Evidence-based UK guidance.

Does Berberine Make You Tired? Evidence and Practical Guidance

Supplements

min read

Does Berberine Make You Tired? Evidence and Practical Guidance

Does berberine make you tired? Discover why some people experience fatigue with berberine supplements, the evidence behind this effect, and practical strategies to minimise tiredness whilst maintaining potential benefits. Expert UK medical guidance on safe berberine use.

Which Diuretic Causes Gynaecomastia? Spironolactone Explained

Weight Loss

min read

Which Diuretic Causes Gynaecomastia? Spironolactone Explained

Which diuretic causes gynaecomastia? Spironolactone is the main culprit. Learn why it affects breast tissue in men, how it compares to other diuretics, and what UK guidance says about managing this side effect.

Berberine and L-Carnitine: Safety, Benefits and Dosage Guide

Supplements

min read

Berberine and L-Carnitine: Safety, Benefits and Dosage Guide

Discover what you need to know about taking berberine and L-carnitine together. Learn about potential benefits, safety considerations, drug interactions, dosage guidance, and when to consult a healthcare professional before combining these supplements.

BMI Calculator for Bariatric Surgery: NHS Eligibility and Next Steps

Weight Loss

min read

BMI Calculator for Bariatric Surgery: NHS Eligibility and Next Steps

Use our BMI calculator for bariatric surgery guide to check NHS eligibility thresholds, understand NICE criteria, explore surgical options, and learn how to get referred for weight loss surgery in the UK.

Oatmeal After Gastric Sleeve: When and How to Eat It Safely

Weight Loss

min read

Oatmeal After Gastric Sleeve: When and How to Eat It Safely

Can you have oatmeal after gastric sleeve surgery? Find out when to safely introduce porridge, how to prepare it, portion sizes, and long-term NHS dietary advice after sleeve gastrectomy.

Mounjaro

min read

Mounjaro and Wound Healing: Evidence and Guidance

Does Mounjaro affect wound healing? Explore the evidence on tirzepatide and tissue repair, practical wound care advice for patients taking Mounjaro, and when to seek medical help for wound complications.

Gastric Lap Band and Insulin Resistance: Evidence, Eligibility, and Outcomes

Weight Loss

min read

Gastric Lap Band and Insulin Resistance: Evidence, Eligibility, and Outcomes

Can a gastric lap band help with insulin resistance? Explore the clinical evidence, NHS eligibility criteria, and how LAGB compares to other bariatric procedures for improving insulin sensitivity.

Low HbA1c Level: Causes, Symptoms, and NHS Guidance

Weight Loss

min read

Low HbA1c Level: Causes, Symptoms, and NHS Guidance

What is a low HbA1c level and what does it mean for your health? Discover UK NHS thresholds, common causes, symptoms of hypoglycaemia, and when to see your GP.

Bolt Guides

Featured

Wegovy Pill UK: Licensing, Eligibility, Safety and Oral Alternatives

Weight loss

Non-Invasive Blood Glucose Meters: UK Evidence, Regulation & Guidance

Blood Glucose Readings for Non-Diabetics: UK Normal Ranges Explained

Is Diarrhoea Normal After Gastric Sleeve? Causes and Recovery Tips

GLP-1 Brands

Wegovy

Mounjaro

Retatrutide Bacteriostatic Water Reconstitution: UK Safety Guide

Retatrutide and Testosterone: Interactions, Safety, and UK Guidance

Retatrutide Peptide vs Tesamorelin: Mechanisms, Evidence, and UK Availability

Cagri Peptide With Retatrutide: UK Evidence, Safety and Availability

Men’s Health

Testosterone

Erectile dysfunction

Does Nattokinase Help with Erectile Dysfunction? Evidence Review

Calorie Deficit Effect on Testosterone: What the Evidence Shows

Will Your Clitoris Stay the Same After Stopping Testosterone Treatment?

Will Erectile Strength Last on Testogel? UK Medical Guidance

Browse all

What Does Metabolise Mean? UK Medical Guide to Drug Metabolism

Is Testogel Body Identical? UK Guide to Bioidentical Testosterone

Choline Inositol Fatty Liver: Evidence, Dosage and NHS Guidance

What Medications Can Cause Hair Loss: A UK Clinical Guide

Topical Vitamin K Cream: Side Effects & Skin Uses

Sunflower Seeds & Erectile Dysfunction: The Evidence

High Protein Calorie Deficit Meal Plan: UK Evidence-Based Guide

Does Berberine Make You Tired? Evidence and Practical Guidance

Which Diuretic Causes Gynaecomastia? Spironolactone Explained

Berberine and L-Carnitine: Safety, Benefits and Dosage Guide

BMI Calculator for Bariatric Surgery: NHS Eligibility and Next Steps

Oatmeal After Gastric Sleeve: When and How to Eat It Safely

Mounjaro and Wound Healing: Evidence and Guidance

Gastric Lap Band and Insulin Resistance: Evidence, Eligibility, and Outcomes

Low HbA1c Level: Causes, Symptoms, and NHS Guidance

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