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In-depth guideBlood tests and biomarkers.Urine Specific Gravity: What Concentration MeansUnderstand what urine specific gravity measures, why dipstick and laboratory methods differ, and why one result cannot diagnose dehydration or kidney disease.Updated 26 Sept 20267 minute read

In-depth guideSupplementsAlpha-Lipoic Acid: Neuropathy Evidence, Forms, Dose & SafetyEvidence-graded alpha-lipoic acid guide covering oral versus IV neuropathy evidence, studied doses, metabolic claims, R-ALA limits, interactions, side effects and high-risk groups.Updated 3 Sept 202616 minute read

In-depth guideSupplementsGarlic Supplements: Benefits and SafetyCompare garlic extracts, powder and food, including modest average benefits, a negative cholesterol trial, bleeding precautions and limits of the evidence.Updated 22 Sept 20265 minute read

In-depth guideSupplementsPsyllium: Benefits, Dose, Cholesterol & Safety | LongevityMateEvidence-based psyllium guide covering constipation, LDL and ApoB, blood sugar, dose, water, timing, interactions, forms, pregnancy and side effects.Updated 10 Aug 202632 minute read

In-depth guideBlood tests and biomarkers.11-Deoxycortisol (Compound S): Test, Range & MeaningUnderstand what an 11-deoxycortisol blood test measures, why baseline, ACTH and metyrapone results differ, and how to interpret the result safely.Updated 24 Aug 202611 minute read

In-depth guideBlood tests and biomarkers.Creatine Kinase (CK) Blood TestUnderstand a creatine kinase blood result, why exercise and timing matter, and how CK differs from creatinine. Read laboratory ranges with the right context.Updated 10 Sept 20265 minute read

In-depth guideBlood tests and biomarkers.Erythropoietin (EPO) Blood Test: Meaning and LimitsUnderstand how an EPO blood result relates to red blood cells, kidney signalling and oxygen, and why a standalone value cannot explain anemia.Updated 27 Sept 20266 minute read

In-depth guideBlood tests and biomarkers.Globulin Blood Test: High, Low and A/G RatioLearn what a globulin blood test measures, how calculated globulin and the A/G ratio differ, and how to read high or low results in context.Updated 4 Sept 202613 minute read

In-depth guideSupplementsAlgal DHA Oil: Vegan Omega-3 Labels and EvidenceAlgal oil can provide DHA without fish. Learn how to read DHA versus total oil on labels, what studies show, and where benefits and safety remain uncertain.Updated 25 Sept 20268 minute read

In-depth guideSupplementsBeta-alanine Supplements: Exercise Evidence, Studied Loading and SafetyA careful guide to beta-alanine, muscle carnosine, selected high-intensity exercise, studied loading patterns, tingling, product quality and long-term uncertainty.Updated 6 Sept 202616 minute read

In-depth guideSupplementsBromelain Supplements: Evidence and SafetyUnderstand what pineapple-derived bromelain is, why oral study findings are limited, and how prescription topical burn care differs.Updated 27 Sept 20266 minute read

In-depth guideSupplementsGreen Tea Extract (EGCG): Evidence and Liver SafetyCompare green tea extract and brewed tea, read EGCG and weight-loss claims against human evidence, and understand liver and medicine-interaction cautions.Updated 30 Sept 20266 minute read

In-depth guideSupplementsN-Acetylcysteine (NAC): Benefits, Dose & SafetyEvidence-based NAC guide separating medical acetylcysteine treatment from supplement claims, with condition-specific findings, studied doses, side effects and interactions.Updated 28 Aug 202617 minute read

In-depth guideSupplementsRiboflavin: Migraine Dose, Benefits, R5P & Safety | LongevityMateEvidence-based riboflavin guide covering vitamin B2 deficiency, the 400 mg migraine dose, R5P forms, absorption, pregnancy, tests, side effects and safety.Updated 10 Aug 202635 minute read

In-depth guideBlood tests and biomarkers.Antinuclear Antibody (ANA) Test: Meaning, Patterns and LimitsA plain-English guide to antinuclear antibody testing, including titre, pattern, HEp-2 IFA, other assays, healthy positives and why the result needs clinical context.Updated 5 Sept 202612 minute read

In-depth guideBlood tests and biomarkers.aPTT (PTT) Blood TestLearn what aPTT measures, why a prolonged clotting time does not always mean bleeding risk, and how medicines and sample quality affect the result.Updated 11 Sept 20265 minute read

In-depth guideBlood tests and biomarkers.Vitamin B6 (PLP) Blood TestUnderstand plasma PLP testing, preparation and supplement effects. See why laboratory intervals vary and a high B6 result does not alone diagnose nerve injury.Updated 21 Sept 20265 minute read

In-depth guideBlood tests and biomarkers.H. pylori Stool Antigen Test: Results and TimingUnderstand H. pylori stool antigen results, the difference from breath, PCR and antibody tests, and why medicines and test-of-cure timing matter.Updated 30 Sept 20266 minute read

In-depth guideBlood tests and biomarkers.Mean Platelet Volume (MPV) Blood TestUnderstand mean platelet volume alongside platelet count. Learn why laboratory methods and sample timing matter, and why MPV alone cannot diagnose a cause.Updated 12 Sept 20265 minute read

In-depth guideBlood tests and biomarkers.Transferrin Blood Test: Iron Transport and Result ContextLearn what measured transferrin means, how it differs from ferritin and transferrin saturation, and why inflammation and laboratory units matter.Updated 8 Sept 20265 minute read

In-depth guideBlood tests and biomarkers.Uric Acid Blood Test: High Results, Gout and MeaningUnderstand a uric acid blood test, high and low results, gout treatment targets, kidney excretion, urine testing and questions for your clinician.Updated 4 Sept 202613 minute read

In-depth guideSupplementsBerberine: Benefits, Dose, Weight Loss & Safety | LongevityMateEvidence-based berberine guide covering glucose, cholesterol, weight loss, dose, forms, side effects, pregnancy, medicine interactions and product quality.Updated 11 Aug 202638 minute read

In-depth guideSupplementsCaffeine: Benefits, Dose, Sleep, Side Effects & SafetyEvidence-based caffeine guide covering alertness, exercise, food and supplement sources, sleep timing, side effects, withdrawal, pregnancy and safe-use limits.Updated 27 Aug 202616 minute read

In-depth guideSupplementsCranberry SupplementsReview cranberry evidence for recurrent urinary infections, differences between juice, extracts and PAC labels, and safety limits. It does not treat an active UTI.Updated 12 Sept 20265 minute read

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