PhosphorusOrganophosphorus CompoundsStereoisomerismMagnetic Resonance SpectroscopyPhosphorus, DietaryPhosphorus CompoundsPhosphatesPhosphorus Metabolism Disorders6-PhytaseParathyroid HormoneMineralsHyperphosphatemiaPhosphorus IsotopesNitrogenCalcium, DietaryCalciumEutrophicationSpectrometry, Mass, Fast Atom BombardmentSoilPhytic AcidHypophosphatemiaFertilizersDietBiomassCalcitriolBone and BonesPhosphitesElectron Probe MicroanalysisCarbonMagnesiumNephrocalcinosisHyperparathyroidism, SecondaryModels, MolecularAnimal FeedAlkaline PhosphatasePolyphosphatesPlant RootsRicketsOxygen IsotopesFood Additives