Bolt Guides

Expert insights on weight loss and more.

Featured

Why Do I Feel Worse After My B12 Injection? Causes & Management

Supplements

min read

Why Do I Feel Worse After My B12 Injection? Causes & Management

Discover why you might feel worse after a B12 injection, including metabolic adjustment, common side effects, and when to seek medical advice. Expert guidance on managing post-injection symptoms safely.

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Weight loss

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Is 16/8 Intermittent Fasting Sustainable Long-Term?

Weight Loss

min read

Is 16/8 Intermittent Fasting Sustainable Long-Term?

Find out which intermittent fasting methods are easiest to stick to, what the evidence says about long-term results, and practical tips to make IF work for you.

How Does Fasting Work? Benefits, Types & Safety

Weight Loss

min read

How Does Fasting Work? Benefits, Types & Safety

Discover what fasting does to your body — from fat burning and autophagy to hormonal shifts. Learn the types, rules, and who should avoid fasting.

Do Heavier People Lose Weight Faster? The Science

Weight Loss

min read

Do Heavier People Lose Weight Faster? The Science

Find out why people with higher body weight often lose weight faster initially — and what the metabolic science says about sustaining those early results.

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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

Ozempic Nausea: Why It Happens & How to Manage It

Feeling sick on Ozempic? Learn why nausea is so common with semaglutide, how long it lasts, tips to ease symptoms, and when to seek medical advice.

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Ozempic Nausea: Why It Happens & How to Manage It

Lump After Injection: Causes, Treatment & Prevention

GLP-1 Brands

min read

Lump After Injection: Causes, Treatment & Prevention

Got a lump after a subcutaneous injection? Learn what causes injection site lumps, how to treat them at home, and when to seek medical advice.

Swollen Lymph Nodes and Saxenda: Causes & Advice

GLP-1 Brands

min read

Swollen Lymph Nodes and Saxenda: Causes & Advice

Not sure if Saxenda causes swollen lymph nodes? Learn what lymphadenopathy means, likely causes, and when to seek medical help during weight loss treatment.

Does Ozempic Cause Headaches? Causes & Management

GLP-1 Brands

min read

Does Ozempic Cause Headaches? Causes & Management

Ozempic headaches affect 1 in 10–100 patients. Find out why they happen, how long they last, and practical ways to manage them safely.

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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 Castor Oil Help with Erectile Dysfunction? Evidence and Treatments

Does castor oil help with erectile dysfunction? Discover the evidence behind this claim, learn about proven ED treatments recommended by NICE, and find out when to see your GP for persistent erectile difficulties.

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Testosterone

min read

Does Testosterone Affect Fertility? Recovery & Conception Guide

Testosterone suppresses ovulation and fertility — but can it return after stopping treatment? Explore recovery timelines, risks, and conception options with ...

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

How Many nmol/L Does Testogel Raise Testosterone Levels?

Discover how many nmol/L Testogel raises testosterone levels in UK patients. Learn about expected increases, individual variation, dosing, absorption factors, and essential monitoring for safe testosterone replacement therapy.

Erectile Dysfunction

min read

Does Escitalopram Cause Erectile Dysfunction? UK Medical Guide

Does escitalopram cause erectile dysfunction? Discover how this common SSRI affects sexual function, why it happens, and what evidence-based management options are available—from dose adjustments to alternative antidepressants. UK medical guidance included.

Erectile Dysfunction

min read

Does Cetirizine Cause Erectile Dysfunction? UK Clinical Evidence

Does cetirizine cause erectile dysfunction? Discover what UK clinical evidence says about this common antihistamine and sexual side effects, plus what to do if you experience ED whilst taking cetirizine.

Erectile Dysfunction

min read

Does Cerebral Palsy Cause Erectile Dysfunction? Facts and Treatment

Does cerebral palsy cause erectile dysfunction? Discover the complex relationship between CP and ED, including physical factors, treatment options, and when to seek medical advice for sexual health concerns.

Erectile Dysfunction

min read

Does Ashwagandha Give You Erectile Dysfunction? UK Evidence Review

Does ashwagandha give you erectile dysfunction? Discover what the evidence says about this popular supplement's effects on male sexual health, potential side effects, and when to seek medical advice for ED in the UK.

Is Testogel Effective? How It Works and What to Expect

Testosterone

min read

Is Testogel Effective? How It Works and What to Expect

Is Testogel effective for treating low testosterone? Discover how this transdermal gel works, how long it takes to see results, factors affecting effectiveness, and essential monitoring guidance for safe, successful testosterone replacement therapy in the UK.

Incretin Beta Cell Function: Mechanisms, Diabetes Impact and Therapies

Weight Loss

min read

Incretin Beta Cell Function: Mechanisms, Diabetes Impact and Therapies

Discover how incretin beta cell function influences diabetes management. Learn about GLP-1, GIP, beta cell preservation, and incretin-based therapies including safety, efficacy, and UK clinical guidance.

Testosterone

min read

How Effective Is Testogel for Testosterone Replacement Therapy?

Discover how effective Testogel is for testosterone replacement therapy. Learn about success rates (75–90%), timeline for results, factors affecting effectiveness, and what to expect from treatment with this UK-licensed TRT gel.

Erectile Dysfunction

min read

Does Fentanyl Cause Erectile Dysfunction? Effects and Management

Does fentanyl cause erectile dysfunction? Discover how this potent opioid affects sexual function through hormonal disruption, what other factors contribute to ED, and practical strategies to manage sexual side effects whilst maintaining effective pain control.

Erectile Dysfunction

min read

Does Lamictal Cause Erectile Dysfunction? Evidence and Management

Does Lamictal cause erectile dysfunction? Discover the evidence linking lamotrigine to sexual side effects, understand the mechanisms involved, and learn practical management strategies including when to seek medical advice and available treatment options.

Erectile Dysfunction

min read

Does Matt Lauer Have Erectile Dysfunction? ED Facts & NHS Treatment

Does Matt Lauer have erectile dysfunction? Discover evidence-based information about ED causes, NHS treatment options, symptoms, and when to seek medical advice. Expert guidance aligned with UK clinical standards.

Erectile Dysfunction

min read

Does Goat Weed Help With Erectile Dysfunction? Evidence and Safety

Does goat weed help with erectile dysfunction? Explore the evidence behind horny goat weed, its safety concerns, potential drug interactions, and why NHS-recommended treatments like PDE5 inhibitors remain the gold standard for erectile dysfunction in the UK.

History of Incretin Mimetics: Evolution and Impact on Diabetes Care

Weight Loss

min read

History of Incretin Mimetics: Evolution and Impact on Diabetes Care

Discover the fascinating history of incretin mimetics, from early incretin effect observations to modern GLP-1 receptor agonists. Learn how these diabetes medicines evolved, their UK regulatory journey, and their transformative impact on type 2 diabetes management and cardiovascular outcomes.

GLP-1 Brands

min read

Lump After Injection: Causes, Treatment & Prevention

Got a lump after a subcutaneous injection? Learn what causes injection site lumps, how to treat them at home, and when to seek medical advice.

GLP-1 Brands

min read

Swollen Lymph Nodes and Saxenda: Causes & Advice

Not sure if Saxenda causes swollen lymph nodes? Learn what lymphadenopathy means, likely causes, and when to seek medical help during weight loss treatment.

GLP-1 Brands

min read

Does Ozempic Cause Headaches? Causes & Management

Ozempic headaches affect 1 in 10–100 patients. Find out why they happen, how long they last, and practical ways to manage them safely.

Bolt Guides

Featured

Why Do I Feel Worse After My B12 Injection? Causes & Management

Weight loss

Is 16/8 Intermittent Fasting Sustainable Long-Term?

How Does Fasting Work? Benefits, Types & Safety

Do Heavier People Lose Weight Faster? The Science

GLP-1 Brands

Wegovy

Mounjaro

Ozempic Nausea: Why It Happens & How to Manage It

Lump After Injection: Causes, Treatment & Prevention

Swollen Lymph Nodes and Saxenda: Causes & Advice

Does Ozempic Cause Headaches? Causes & Management

Men’s Health

Testosterone

Erectile dysfunction

Does Castor Oil Help with Erectile Dysfunction? Evidence and Treatments

Does Testosterone Affect Fertility? Recovery & Conception Guide

Calorie Deficit Effect on Testosterone: What the Evidence Shows

How Many nmol/L Does Testogel Raise Testosterone Levels?

Browse all

Does Escitalopram Cause Erectile Dysfunction? UK Medical Guide

Does Cetirizine Cause Erectile Dysfunction? UK Clinical Evidence

Does Cerebral Palsy Cause Erectile Dysfunction? Facts and Treatment

Does Ashwagandha Give You Erectile Dysfunction? UK Evidence Review

Is Testogel Effective? How It Works and What to Expect

Incretin Beta Cell Function: Mechanisms, Diabetes Impact and Therapies

How Effective Is Testogel for Testosterone Replacement Therapy?

Does Fentanyl Cause Erectile Dysfunction? Effects and Management

Does Lamictal Cause Erectile Dysfunction? Evidence and Management

Does Matt Lauer Have Erectile Dysfunction? ED Facts & NHS Treatment

Does Goat Weed Help With Erectile Dysfunction? Evidence and Safety

History of Incretin Mimetics: Evolution and Impact on Diabetes Care

Lump After Injection: Causes, Treatment & Prevention

Swollen Lymph Nodes and Saxenda: Causes & Advice

Does Ozempic Cause Headaches? Causes & Management

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