Bolt Guides

Expert insights on weight loss and more.

Featured

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

GLP-1 Brands

min read

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

Lipo C with retatrutide: understand what these unlicensed and investigational treatments are, how they are used in weight management, key safety risks, and UK regulatory guidance before considering either therapy.

Read now

Weight loss

Read all on weight loss

Abnormal HbA1c ICD-10 Codes: UK Clinical Guide and NHS Thresholds

Weight Loss

min read

Abnormal HbA1c ICD-10 Codes: UK Clinical Guide and NHS Thresholds

Abnormal HbA1c ICD-10 codes explained for UK clinical practice — covering R73.0, R73.9, NHS diagnostic thresholds, NICE guidance, and when to refer. Read our full clinical guide.

Comparison of Blood Glucose, HbA1c and Fructosamine: NHS Guide

Weight Loss

min read

Comparison of Blood Glucose, HbA1c and Fructosamine: NHS Guide

Comparison of blood glucose, HbA1c, and fructosamine explained — discover how each test works, when it's used in NHS practice, their limitations, and how to understand your results.

Lap Band Gastric Banding System: NHS Eligibility, Risks and Alternatives

Weight Loss

min read

Lap Band Gastric Banding System: NHS Eligibility, Risks and Alternatives

Lap band gastric banding system explained: how LAGB works, NHS eligibility criteria, risks, diet after surgery, and UK alternatives including sleeve gastrectomy and gastric bypass.

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

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

Read now

Retatrutide: Can Anyone Take It and Is It Available in the UK?

GLP-1 Brands

min read

Retatrutide: Can Anyone Take It and Is It Available in the UK?

Can anyone take retatrutide? Find out who may be eligible, who should avoid it, its current UK regulatory status, potential side effects, and how to speak to your GP about obesity treatment options.

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 Fridge Storage: What You Need to Know

GLP-1 Brands

min read

Retatrutide Fridge Storage: What You Need to Know

Retatrutide storage in the fridge explained: why no confirmed shelf-life exists yet, correct refrigeration conditions, signs of degradation, and what to do if the product is left out of the fridge.

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

Can Cialis Cause Gynaecomastia? Tadalafil Side Effects Explained

Erectile Dysfunction

min read

Can Cialis Cause Gynaecomastia? Tadalafil Side Effects Explained

Can Cialis cause gynaecomastia? Learn what the MHRA-approved evidence says about tadalafil and breast tissue changes, known side effects, and when to see a GP.

Read now

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.

Testosterone

min read

Testosterone Booster for Gynaecomastia: Evidence, Risks and UK Treatment Options

Testosterone booster for gynaecomastia — does it work? Explore the evidence, safety risks, MHRA and NHS guidance, and clinically recognised UK treatment options for enlarged male breast tissue.

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.

How to Store Testogel: Safe Storage and Disposal Guide

Testosterone

min read

How to Store Testogel: Safe Storage and Disposal Guide

Learn how to store Testogel correctly to maintain its effectiveness and safety. Expert guidance on ideal storage temperature, protecting children and pets from exposure, safe disposal methods, and what to do if Testogel is stored incorrectly. Essential UK advice for testosterone gel users.

Weight Loss

min read

Best Vegan Weight Loss Pills: Evidence, Safety, and NHS Alternatives

Best vegan weight loss pills reviewed: what the evidence really shows, which ingredients are UK-authorised, key safety warnings, and NHS-recommended alternatives for sustainable weight management.

Fish Oil Benefits for Women: Evidence-Based Guide to Omega-3

Supplements

min read

Fish Oil Benefits for Women: Evidence-Based Guide to Omega-3

Discover evidence-based fish oil benefits for women, including heart health, pregnancy support, and cognitive function. Learn about safe dosages, potential side effects, and UK guidance on omega-3 supplementation for women's health.

Weight Loss

min read

Weight Loss Pills Making You Feel Sick: Causes and UK Advice

Weight loss pills making you feel sick? Learn why nausea happens with semaglutide, orlistat and other UK weight loss medications, how to reduce sickness, and when to seek medical help.

Do Weight Loss Injections Affect Mental Health? UK Evidence and Guidance

Wegovy

min read

Do Weight Loss Injections Affect Mental Health? UK Evidence and Guidance

Do weight loss injections affect mental health? Discover the evidence on GLP-1 medications like Wegovy and Saxenda, reported side effects, who should avoid them, and how to monitor your wellbeing during treatment.

How Long Should I Take Testogel For? Duration and Monitoring

Testosterone

min read

How Long Should I Take Testogel For? Duration and Monitoring

How long should I take Testogel for? Discover whether testosterone replacement therapy is lifelong or temporary, what factors determine treatment duration, and how regular monitoring ensures safe, effective use tailored to your individual needs.

Vitamin K Shot Pros and Cons: Evidence-Based Guide for Parents

Supplements

min read

Vitamin K Shot Pros and Cons: Evidence-Based Guide for Parents

Vitamin K shot pros and cons: discover the evidence-based benefits and safety of newborn vitamin K prophylaxis, alternatives to the injection, and how to make an informed decision for your baby's health.

Erectile Dysfunction

min read

Do Brazil Nuts Help Erectile Dysfunction? Evidence and Safe Use

Do Brazil nuts help erectile dysfunction? Discover the evidence behind selenium, nutritional factors in ED, and why medical assessment remains essential for effective treatment of erectile difficulties.

Hair Loss

min read

Peppermint Oil for Hair Loss: Evidence, Safe Use, and UK Treatments

Peppermint oil for hair loss: does the evidence support it? Explore the science, safe usage, side effects, and UK-approved treatments like minoxidil and finasteride.

Aleve and Allergy Medication: Safe to Combine? UK Guidance

Supplements

min read

Aleve and Allergy Medication: Safe to Combine? UK Guidance

Aleve and allergy medication — can you take them together safely? Learn about naproxen interactions with antihistamines, decongestants, and more, with UK NHS and NICE guidance.

Fatty Liver Acupressure Points: Evidence, Safety and Limitations

Weight Loss

min read

Fatty Liver Acupressure Points: Evidence, Safety and Limitations

Discover fatty liver acupressure points used in traditional Chinese medicine, including safe application techniques and evidence limitations. Learn why NICE-recommended lifestyle changes remain essential for managing NAFLD, and when to seek urgent medical care.

Sluggish Skin & Metabolism: What May Help

Weight Loss

min read

Sluggish Skin & Metabolism: What May Help

Boost metabolism & revive sluggish skin with evidence-based tips. NHS-aligned guidance on treatments, nutrition & when to see your GP.

Bio-Rad D-10 HbA1c Manual: NHS Laboratory Guide to HPLC Testing

Weight Loss

min read

Bio-Rad D-10 HbA1c Manual: NHS Laboratory Guide to HPLC Testing

Bio-Rad D-10 HbA1c manual guidance for NHS laboratories — covering HPLC operating instructions, calibration, QC, UKAS compliance, result interpretation per NICE, troubleshooting, and MHRA regulations.

Hair Loss

min read

Autoimmune Diseases That Cause Hair Loss: NHS Guide

Autoimmune diseases that cause hair loss include alopecia areata, lupus, and thyroid disorders. Learn about NHS diagnosis, treatment options, and when to see your GP.

Can You Eat Cookies on a Calorie Deficit? A UK Guide

Weight Loss

min read

Can You Eat Cookies on a Calorie Deficit? A UK Guide

Can you eat cookies on a calorie deficit? Yes — find out how to include biscuits in your daily calorie allowance, understand their nutritional impact, and get practical tips for staying on track with your weight loss goals.

Bolt Guides

Featured

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

Weight loss

Abnormal HbA1c ICD-10 Codes: UK Clinical Guide and NHS Thresholds

Comparison of Blood Glucose, HbA1c and Fructosamine: NHS Guide

Lap Band Gastric Banding System: NHS Eligibility, Risks and Alternatives

GLP-1 Brands

Wegovy

Mounjaro

Lipo C With Retatrutide: UK Safety, Evidence, and Regulatory Guidance

Retatrutide: Can Anyone Take It and Is It Available in the UK?

1 Month Retatrutide Results: Clinical Evidence and Realistic Expectations

Retatrutide Fridge Storage: What You Need to Know

Men’s Health

Testosterone

Erectile dysfunction

Can Cialis Cause Gynaecomastia? Tadalafil Side Effects Explained

Can Testosterone Cause Gynaecomastia? Symptoms, Risks & NHS Treatment

Testosterone Booster for Gynaecomastia: Evidence, Risks and UK Treatment Options

Calorie Deficit Effect on Testosterone: What the Evidence Shows

Browse all

How to Store Testogel: Safe Storage and Disposal Guide

Best Vegan Weight Loss Pills: Evidence, Safety, and NHS Alternatives

Fish Oil Benefits for Women: Evidence-Based Guide to Omega-3

Weight Loss Pills Making You Feel Sick: Causes and UK Advice

Do Weight Loss Injections Affect Mental Health? UK Evidence and Guidance

How Long Should I Take Testogel For? Duration and Monitoring

Vitamin K Shot Pros and Cons: Evidence-Based Guide for Parents

Do Brazil Nuts Help Erectile Dysfunction? Evidence and Safe Use

Peppermint Oil for Hair Loss: Evidence, Safe Use, and UK Treatments

Aleve and Allergy Medication: Safe to Combine? UK Guidance

Fatty Liver Acupressure Points: Evidence, Safety and Limitations

Sluggish Skin & Metabolism: What May Help

Bio-Rad D-10 HbA1c Manual: NHS Laboratory Guide to HPLC Testing

Autoimmune Diseases That Cause Hair Loss: NHS Guide

Can You Eat Cookies on a Calorie Deficit? A UK Guide

Personalized weight management for women