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Free, doctor-verified health content on metabolic health, men's health and women's health.
Free, doctor-verified content on metabolic health, men's health and women's health. Written by a licensed GP with 15+ years of clinical experience. No hype. No guesswork. Just evidence.
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Get the free newsletterVardIQ publishes short, accurate health content on the topics your doctor wishes there was more time to explain.
Type 2 diabetes, insulin resistance, weight loss, hypertension and cardiovascular prevention.
Menopause, thyroid health, hormonal balance and HRT — explained by the evidence.
Testosterone, andropause, libido and hormonal decline — what the science actually says.
Dr. Ferlin Fitz-Jim M.D.
General Practitioner with 15+ years of clinical experience across the Netherlands, Sweden and Norway. Specialist in chronic disease management, metabolic health, type 2 diabetes, hypertension and cardiovascular prevention. Every piece of VardIQ content is reviewed and approved before publication.
Vrije Universiteit Amsterdam — M.D., Specialist in General PracticeWe source from PubMed, Cochrane Reviews and established clinical guidelines. We cite our sources. We admit when evidence is limited. If we don't know, we say so.
Every video reviewed by Dr. Ferlin before publication
References included in every video and article
Educational content only — no individual medical advice
Medical disclaimer on every piece of content
Yes. Every article, video and newsletter published by VardIQ is written or reviewed by Dr. Ferlin Fitz-Jim M.D., a licensed General Practitioner with over 15 years of clinical experience in the Netherlands, Sweden and Norway.
No. VardIQ provides health education only — not individual medical advice. Always consult your own doctor or healthcare provider for personal health decisions. Our content helps you understand the science so you can have better conversations with your GP.
All health claims on VardIQ are sourced from PubMed, Cochrane Reviews and established international clinical guidelines. We always reference our sources and clearly state when evidence is limited or inconclusive.
VardIQ focuses on three core areas: metabolic health (type 2 diabetes, insulin resistance, cardiovascular prevention), female health (menopause, thyroid, HRT) and male health (testosterone, andropause, hormonal decline). New content is published weekly.
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Common early signs of insulin resistance include unexplained fatigue after meals, difficulty losing weight despite a healthy diet, increased hunger shortly after eating, dark patches of skin around the neck or armpits (acanthosis nigricans) and elevated fasting blood sugar. Insulin resistance often develops silently over years before progressing to type 2 diabetes. VardIQ covers this topic in detail — including what the peer-reviewed evidence says about early detection and lifestyle interventions. Always consult your GP if you suspect insulin resistance.
Low testosterone in men over 40 can present as persistent fatigue, reduced libido, difficulty building or maintaining muscle mass, increased body fat (particularly around the abdomen) and mood changes including irritability or low mood. Three of the most telling signs are a reduction in morning erections, a noticeable drop in sexual desire and changes in how erections work. These symptoms develop gradually and are often dismissed as normal ageing — but they may point to a measurable hormonal decline. Because these symptoms overlap with many other conditions, a blood test is essential before drawing conclusions. VardIQ publishes evidence-based content on male hormonal health, including what clinical guidelines say about andropause, when testosterone levels should be investigated and when treatment is appropriate. Always seek a medical evaluation from your GP.
For most healthy women under 60 who are within 10 years of menopause onset, current evidence from organisations including NICE, the British Menopause Society and the North American Menopause Society indicates that hormone replacement therapy (HRT) is safe and effective for managing symptoms such as hot flushes, night sweats and mood disturbances. The risks and benefits vary depending on individual health history, the type of HRT used and the duration of treatment. VardIQ covers the HRT evidence base in detail. This is a topic you should discuss with your own GP or a menopause specialist.
High blood pressure (hypertension) is often called the silent killer because it rarely causes noticeable symptoms until it reaches dangerous levels. When symptoms do occur, they can include persistent headaches (particularly at the back of the head), dizziness, blurred vision, shortness of breath and nosebleeds. The only reliable way to detect hypertension is through regular blood pressure measurement. According to WHO and ESC guidelines, a reading consistently above 140/90 mmHg requires medical attention. VardIQ covers cardiovascular prevention in detail — always have your blood pressure checked regularly by your GP.
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