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.

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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

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.

Healthy Fish to Eat: NHS Guidance on Omega-3 and Safety

Supplements

min read

Healthy Fish to Eat: NHS Guidance on Omega-3 and Safety

Discover the healthiest fish to eat in the UK, including omega-3-rich options like salmon, mackerel, and sardines. Learn NHS recommendations, mercury safety guidance, and how often to eat fish for optimal cardiovascular and neurological health.

How Is HbA1c Formed? Glycation, Testing, and NHS Guidance

Weight Loss

min read

How Is HbA1c Formed? Glycation, Testing, and NHS Guidance

How is HbA1c formed, and what do your results mean? Learn the science behind glycated haemoglobin, NHS diagnostic thresholds, factors that affect readings, and when to seek medical advice.

Erectile Dysfunction

min read

Does Tylenol Help with Erectile Dysfunction? UK Evidence and Treatment

Does Tylenol help with erectile dysfunction? Discover the facts about paracetamol and ED, why it's not an effective treatment, and learn about evidence-based options available in the UK including PDE5 inhibitors and lifestyle modifications.

Can You Eat Tuna Fish Every Day? NHS Guidance Explained

Supplements

min read

Can You Eat Tuna Fish Every Day? NHS Guidance Explained

Can you eat tuna fish every day? Discover NHS guidance on safe tuna consumption, mercury levels in different tuna species, and healthier alternatives. Essential advice for pregnant women, children, and adults on balancing nutritional benefits with mercury exposure risks.

Elevated Bilirubin After Gastric Sleeve: Causes, Symptoms & NHS Treatment

Weight Loss

min read

Elevated Bilirubin After Gastric Sleeve: Causes, Symptoms & NHS Treatment

Elevated bilirubin after gastric sleeve surgery explained — causes, symptoms, red flags, and NHS treatment pathways. Learn when to seek urgent care and how liver health is monitored long-term.

How Many Calories Do People on Ozempic Eat? UK Guide

GLP-1 Brands

min read

How Many Calories Do People on Ozempic Eat? UK Guide

How many calories do people on Ozempic eat? Discover evidence-based guidance on typical calorie intake, nutritional balance, and safe eating patterns whilst taking semaglutide for type 2 diabetes in the UK.

How Long Does Saxenda Stay in Your System?

GLP-1 Brands

min read

How Long Does Saxenda Stay in Your System?

Saxenda (liraglutide) has a 13-hour half-life. Learn how long it stays in your system, how this affects daily dosing, and what happens when you stop.

Erectile Dysfunction

min read

Cycling and Erectile Dysfunction: Evidence & Prevention

Can bike seats affect erectile function? Discover the evidence on perineal pressure, saddle design, and how to protect your sexual health whilst cycling.

Do GLP-1 Make You Gassy? Understanding Digestive Side Effects

Weight Loss

min read

Do GLP-1 Make You Gassy? Understanding Digestive Side Effects

Do GLP-1 make you gassy? Discover why GLP-1 medications like Ozempic and Wegovy can cause gas and bloating, how common these side effects are, and practical strategies to manage digestive discomfort during treatment.

Orange Juice and Allergy Medication: What You Need to Know

Supplements

min read

Orange Juice and Allergy Medication: What You Need to Know

Orange juice and allergy medication can be a problematic combination — find out which antihistamines are affected, the science behind the interaction, and NHS-backed tips for taking your medication safely.

Can I Take Multivitamins with Fatty Liver? NHS Guidance

Weight Loss

min read

Can I Take Multivitamins with Fatty Liver? NHS Guidance

Can you take multivitamins with fatty liver disease? Discover which vitamins are safe, which to avoid, and NHS guidance on supplements for liver health. Expert advice on vitamin A, iron, vitamin D, and more.

Wegovy

min read

Can You Take Berberine and Wegovy Together? Safety Guide

Wondering if you can take berberine and Wegovy together? Discover the safety considerations, potential interactions, and essential medical advice before combining these treatments for weight management and metabolic health.

Melted Cheese After Gastric Sleeve: Safety, Timing and Nutrition

Weight Loss

min read

Melted Cheese After Gastric Sleeve: Safety, Timing and Nutrition

Melted cheese after gastric sleeve surgery — find out when it's safe to introduce, which varieties to choose, nutritional benefits and risks, and expert NHS-aligned dietary guidance.

Polyunsaturated Fatty Acids Foods: Best Sources and Daily Intake

Supplements

min read

Polyunsaturated Fatty Acids Foods: Best Sources and Daily Intake

Discover the best polyunsaturated fatty acids foods for optimal health. Learn which omega-3 and omega-6 rich foods to include in your diet, with practical guidance based on NHS recommendations and UK dietary guidelines.

Best Calorie Deficit to Lose Fat and Gain Muscle: UK Guide

Weight Loss

min read

Best Calorie Deficit to Lose Fat and Gain Muscle: UK Guide

Discover the best calorie deficit to lose fat and gain muscle through evidence-based body recomposition strategies. Learn optimal deficit ranges, protein requirements, resistance training approaches, and monitoring methods aligned with UK NHS guidance for safe, sustainable results.

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

Healthy Fish to Eat: NHS Guidance on Omega-3 and Safety

How Is HbA1c Formed? Glycation, Testing, and NHS Guidance

Does Tylenol Help with Erectile Dysfunction? UK Evidence and Treatment

Can You Eat Tuna Fish Every Day? NHS Guidance Explained

Elevated Bilirubin After Gastric Sleeve: Causes, Symptoms & NHS Treatment

How Many Calories Do People on Ozempic Eat? UK Guide

How Long Does Saxenda Stay in Your System?

Cycling and Erectile Dysfunction: Evidence & Prevention

Do GLP-1 Make You Gassy? Understanding Digestive Side Effects

Orange Juice and Allergy Medication: What You Need to Know

Can I Take Multivitamins with Fatty Liver? NHS Guidance

Can You Take Berberine and Wegovy Together? Safety Guide

Melted Cheese After Gastric Sleeve: Safety, Timing and Nutrition

Polyunsaturated Fatty Acids Foods: Best Sources and Daily Intake

Best Calorie Deficit to Lose Fat and Gain Muscle: UK Guide

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