Knowledge · Nutrition
Vitamin D, VDR and antimicrobial peptides: mechanisms and clinical limits
Local vitamin D metabolism, VDR, CAMP and DEFB4: enzymes, compartments, LL-37 maturation and the limits of clinical infection prevention.
Knowledge · General
DHEA-S: adrenal synthesis, intracrinology, adrenopause and immunity
CYP17A1, POR and b5; SULT2A1, PAPS and STS; steroid transport and tissue conversion. Age-related decline, neurosteroid and immune mechanisms, clinical trials and the limits of supplementation.
Knowledge · Nutrition
Vitamin D: Bones, Testing, Supplements, and the Risks of Megadoses
Evidence-based guide to vitamin D: cholecalciferol metabolism, calcium homeostasis, immune function, 25(OH)D blood testing, dosages, and toxicity risks.
Knowledge · Nutrition
Vitamin A in the Body: Why It Is Needed, Where It Is Found, and Why Too Much Can Be Dangerous
A practical guide to retinol and carotenoids, food sources, deficiency clues, testing, pregnancy precautions and overdose risk.
Knowledge · Supplements
Zinc in the Body: Why It Matters, How to Recognize Deficiency, and Why Excess Can Be Dangerous
A practical guide to zinc: its roles in immunity, skin and reproduction, causes of deficiency or excess, food sources, testing and interactions with copper and medicines.