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“In the first experiment, high levels of D3 (110 microg and 220 microg/kg of diet) increased phytate P utilization, but the increase was not as great as that obtained from 1,25-(OH)2D3 supplementation.”
“The enhanced phytate P utilization (P < 0.001) was also observed during assay of the phytase activity in the mixed diets with an addition of D3 and without added phytase.”
“The raising of cholecalciferol alone dramatically increased phytate digestibility and the retention of Ca and P. While this remedied the hypercalcaemia, the hypophosphataemia persisted as did the diminution of tibia weight.”
The British journal of nutrition • 1991 | View Paper
“The requirements of animals for vitamin D increase as the proportion of the total dietary P as phytate increases. (”
“ Vitamin D probably enhances the utilization of phytate P in two ways, by increasing the production of intestinal phytase and by stimulating Ca absorption, thus rendering the phytate more soluble.”