Calcium and phosphate in plasma exist in soluble equilibrium; when their product exceeds roughly 4.4 mmol²/L², soft-tissue precipitation (vascular calcification) begins.
Calcium and phosphate in plasma exist in soluble equilibrium; when their product exceeds roughly 4.4 mmol²/L², soft-tissue precipitation (vascular calcification) begins. This is an independent cardiovascular risk factor and accelerates arterial stiffness.
High: hyperparathyroidism, vitamin D toxicity, chronic kidney disease, sarcoidosis, excessive calcium/phosphate supplementation. Low: vitamin D deficiency, malabsorption, hypoparathyroidism, malnutrition.
Usually asymptomatic. Severe elevation risks calciphylaxis. Extreme abnormalities: bone pain, kidney stones, muscle weakness.
Adequate vitamin D (sunlight, fatty fish, egg yolks, supplementation). Dietary calcium from dairy or fortified plant milks.
Excessive phosphate additives in ultra-processed foods. High-dose calcium supplements taken without food can transiently raise the product.
Educational information only — not a diagnosis. Every Pheno result is interpreted in context and reviewed by a physician.
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