Table 1.

Dietary vitamin D3 (cholecalciferol) treatment

VitD3 treatment and serum electrolytes	Low VitD3	Medium VitD3	High VitD3
VitD3, IU/kg of diet	100	1,000	10,000
Daily food intake,* g	16.4 ± 0.4	16.5 ± 0.4	15.9 ± 0.5
VitD3 dose,*,† IU per day	1.7 ± 0.4	16.5 ± 0.4	159.0 ± 5.2
Serum calcium, mg/dL	11.4 ± 0.1	11.4 ± 0.01	11.5 ± 0.1
Serum phosphorus, mg/dL	5.7 ± 0.3	4.9 ± 0.2	5.5 ± 0.2

^*Previously reported in Keeney et al. (35).

^†Average daily dose was calculated by dividing the amount of VitD3 in the diet by the amount consumed in the chow.