Blood Test Results, Explained
Free guides on CBC, thyroid, HbA1c, cholesterol, liver & kidney function tests — written by a PhD biochemist, trusted by patients in 50+ countries.
Dr. Naeem Mahmood Ashraf
PhD Biochemistry · 45+ Publications
Vitamins & Minerals
— 3 articlesFerritin Levels Too Low or Too High: What Your Blood Test Really Means
Ferritin is the most accurate marker of your body's iron stores — yet millions of people receive abnormal results with no clear explanation. This guide covers normal ferritin ranges by age and sex, what low ferritin means (iron deficiency, hair loss, fatigue), what high ferritin means (inflammation, haemochromatosis, liver disease), and exactly what to do next.
Iron Deficiency Anaemia: The Lab Tests That Diagnose It
Iron deficiency is the most common nutritional deficiency worldwide. Learn how ferritin, serum iron, TIBC, and transferrin saturation work together to diagnose and stage iron deficiency.
Vitamin D Deficiency: How to Interpret Your 25-OH Results
Vitamin D deficiency is a global epidemic. Learn what your 25-hydroxy Vitamin D result means, why the cut-offs matter, and how to interpret results in ng/mL vs nmol/L.
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