Adult intakes average 809 1016 [95% CI 320
- 1783] mg/day
Food sources: dairy foods (48%), cereals:
supplnts M1%, F5%
Deficiency possible: vegans, malabsorption,
vit. D deficiency
Preparations contain 100 - 600 mg per day
[600 mg x 2/day]
GL
1500 mg
High intakes reduced absorption, increased urinary
excretion
Acute toxicity: diarrhoea from excipients sorbitol or xylitol <5%
Chronic toxicity:
hypercalcaemia if gross
excess and antacids Milk-Alkalai syndr.
renal stones if predisposed
former
cardiovascular disease if no vitamin
D supplements
Excess diagnosed by: raised serum calcium