Bolt Guides

When can you eat salad after gastric sleeve surgery? Find out the recommended timeline, safest ingredients, foods to avoid, and expert NHS-aligned tips for reintroducing raw foods comfortably.

Weight Loss

min read

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

Use a gastric sleeve weight loss calculator to estimate your results after sleeve gastrectomy. Learn how these tools work, NHS eligibility criteria, and expert recovery planning advice.

Read all on weight loss

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

How Long Does Rybelsus Stay in Your System?

How long does Rybelsus stay in your system? Discover the elimination timeline, factors affecting clearance, and what happens when you stop taking this type 2 diabetes medication.

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What Is Ozempic Personality? Mood Changes and Semaglutide

GLP-1 Brands

min read

What Is Ozempic Personality? Mood Changes and Semaglutide

What is Ozempic personality? Explore reported mood and behavioural changes with semaglutide, the scientific evidence, and when to speak to your GP about side effects whilst taking Ozempic for type 2 diabetes.

What Does Trulicity Do to Your Body? Effects Explained

GLP-1 Brands

min read

What Does Trulicity Do to Your Body? Effects Explained

Discover what Trulicity does to your body, including how this GLP-1 receptor agonist lowers blood sugar, affects weight and appetite, and impacts long-term health in type 2 diabetes management.

Saxenda & Blood Donation: UK Eligibility Guide

GLP-1 Brands

min read

Saxenda & Blood Donation: UK Eligibility Guide

Taking Saxenda and want to give blood? Learn UK eligibility rules from NHSBT, what liraglutide means for donors, and when to seek advice before donating.

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

Trans Women & Erectile Function: UK Guide

Erectile Dysfunction

min read

Trans Women & Erectile Function: UK Guide

Learn how hormone therapy affects erections in trans women, whether Viagra is suitable, and what support is available through the NHS.

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Testosterone

min read

How Often Should Testosterone Be Checked When Using Testogel?

Find out how often testosterone levels should be checked when using Testogel. Learn about UK monitoring schedules, blood tests, safety checks, and signs your dose may need adjusting under NHS guidelines.

Where to Put Testogel for Women: Safe Application Sites

Testosterone

min read

Where to Put Testogel for Women: Safe Application Sites

Discover where to put Testogel safely if you're a woman prescribed this off-label testosterone therapy. Learn the recommended application sites, step-by-step technique, and essential safety precautions to optimise treatment and minimise risks.

Testosterone

min read

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Can testosterone cause gynaecomastia? Learn how testosterone converts to oestrogen, who is most at risk, how to spot symptoms, and what NHS treatment options are available.

Does Ozempic Cause Gout Flare-Ups? Evidence and Management

GLP-1 Brands

min read

Does Ozempic Cause Gout Flare-Ups? Evidence and Management

Does Ozempic cause gout flare-ups? Discover the evidence behind this question, understand the indirect link through weight loss, and learn practical strategies to manage gout risk whilst taking semaglutide for type 2 diabetes.

IV Therapy After Bariatric Surgery: NHS Guidance and Clinical Advice

Weight Loss

min read

IV Therapy After Bariatric Surgery: NHS Guidance and Clinical Advice

IV therapy after bariatric surgery: find out when it's needed, which fluids and nutrients are used, NHS and NICE guidelines, monitoring risks, and when to seek urgent medical advice.

Saxenda Dosing Schedule: Daily Use & Dose Chart

GLP-1 Brands

min read

Saxenda Dosing Schedule: Daily Use & Dose Chart

Learn how Saxenda's once-daily injection works, the 5-week dose escalation schedule, maximum 3 mg dose, and how long to use it — aligned with UK guidance.

Is Glucosamine Bad for Kidneys? UK Evidence and Safety Guidance

Supplements

min read

Is Glucosamine Bad for Kidneys? UK Evidence and Safety Guidance

Is glucosamine bad for kidneys? Discover what UK evidence reveals about glucosamine safety for kidney function, who should avoid it, and safer alternatives for joint health recommended by NICE guidance.

Can You Take Victoza and Trulicity Together? UK Guidance

GLP-1 Brands

min read

Can You Take Victoza and Trulicity Together? UK Guidance

Can you take Victoza and Trulicity together? Discover why combining these GLP-1 receptor agonists is not recommended, the risks involved, and safe alternatives for managing type 2 diabetes under medical supervision.

Hair Loss

min read

Regenix Hair Loss Treatment: Evidence, Costs and UK Clinical Guidance

Regenix hair loss treatment explained: how it works, what the evidence shows, costs, and when to see a GP or dermatologist. Read our balanced UK clinical guide.

Can Probiotics Help You Lose Weight? UK Evidence and Guidance

Supplements

min read

Can Probiotics Help You Lose Weight? UK Evidence and Guidance

Can probiotics help you lose weight? Explore the clinical evidence, which strains show promise, and how to use them safely alongside NHS-recommended weight management strategies. Expert UK guidance on probiotics for weight control.

Can You Take Calcium and Magnesium Together? UK Guide

Supplements

min read

Can You Take Calcium and Magnesium Together? UK Guide

Can you take calcium and magnesium together? Discover how these essential minerals work synergistically, recommended dosages, optimal timing, potential benefits and risks, and when to seek medical advice about combined supplementation in the UK.

How Big of a Calorie Deficit Is Too Much? NHS-Backed Guidance

Weight Loss

min read

How Big of a Calorie Deficit Is Too Much? NHS-Backed Guidance

How big of a calorie deficit is too much? Learn what NHS and NICE guidelines say about safe calorie restriction, warning signs of going too far, and how to lose weight sustainably without risking your health.

B12 Side Effects in Elderly: Safety Guide for Older Adults

Supplements

min read

B12 Side Effects in Elderly: Safety Guide for Older Adults

Discover B12 side effects in elderly patients, from common mild reactions to rare serious events. Expert guidance on safe dosing, drug interactions, and when to seek medical advice for older adults receiving vitamin B12 therapy.

Tadalafil and Alcohol: Safety Guide for UK Men

Erectile Dysfunction

min read

Tadalafil and Alcohol: Safety Guide for UK Men

Can you drink alcohol with tadalafil? Learn about safe limits, blood pressure risks, and NHS-aligned advice to help you use tadalafil safely.

CJC 1295, Ipamorelin and Retatrutide: UK Safety and Legal Guide

GLP-1 Brands

min read

CJC 1295, Ipamorelin and Retatrutide: UK Safety and Legal Guide

CJC 1295, ipamorelin, and retatrutide explained: how these unapproved peptides work, their risks and side effects, UK legal status, and safer NHS-approved alternatives for weight management and growth hormone concerns.

Chronic Liver Disease and Decreased HbA1c: Causes, Risks, and Alternatives

Weight Loss

min read

Chronic Liver Disease and Decreased HbA1c: Causes, Risks, and Alternatives

Chronic liver disease can decrease HbA1c readings, masking poor blood sugar control. Learn why this happens, which alternative tests to use, and when to seek specialist review — with UK NHS and NICE guidance.

Wegovy

min read

Can I Eat Popcorn on Wegovy? Diet & Snacking Guide

Can you eat popcorn whilst taking Wegovy? Discover how this GLP-1 medication affects food tolerance, the nutritional considerations for popcorn during weight loss treatment, and practical snacking strategies to support your weight management goals on semaglutide.

N-Acetyl Glucosamine Benefits: Evidence for Skin and Digestive Health

Supplements

min read

N-Acetyl Glucosamine Benefits: Evidence for Skin and Digestive Health

Discover the evidence behind N-acetyl glucosamine benefits for skin health and digestive support. Learn about safe dosing, potential side effects, and when to seek professional advice before supplementing with NAG.

Bolt Guides

Featured

What Is RMR? Resting Metabolic Rate Explained

Weight loss

What Is RMR? Resting Metabolic Rate Explained

When Can I Eat Salad After Gastric Sleeve Surgery?

Gastric Sleeve Weight Loss Calculator: Results, Eligibility & Recovery Planning

GLP-1 Brands

Wegovy

Mounjaro

How Long Does Rybelsus Stay in Your System?

What Is Ozempic Personality? Mood Changes and Semaglutide

What Does Trulicity Do to Your Body? Effects Explained

Saxenda & Blood Donation: UK Eligibility Guide

Men’s Health

Testosterone

Erectile dysfunction

Trans Women & Erectile Function: UK Guide

How Often Should Testosterone Be Checked When Using Testogel?

Where to Put Testogel for Women: Safe Application Sites

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Browse all

Does Ozempic Cause Gout Flare-Ups? Evidence and Management

IV Therapy After Bariatric Surgery: NHS Guidance and Clinical Advice

Saxenda Dosing Schedule: Daily Use & Dose Chart

Is Glucosamine Bad for Kidneys? UK Evidence and Safety Guidance

Can You Take Victoza and Trulicity Together? UK Guidance

Regenix Hair Loss Treatment: Evidence, Costs and UK Clinical Guidance

Can Probiotics Help You Lose Weight? UK Evidence and Guidance

Can You Take Calcium and Magnesium Together? UK Guide

How Big of a Calorie Deficit Is Too Much? NHS-Backed Guidance

B12 Side Effects in Elderly: Safety Guide for Older Adults

Tadalafil and Alcohol: Safety Guide for UK Men

CJC 1295, Ipamorelin and Retatrutide: UK Safety and Legal Guide

Chronic Liver Disease and Decreased HbA1c: Causes, Risks, and Alternatives

Can I Eat Popcorn on Wegovy? Diet & Snacking Guide

N-Acetyl Glucosamine Benefits: Evidence for Skin and Digestive Health

Personalized weight management for women