In this section
Immigrant health guideline - Low Vitamin D Contains detailed information and background, especially for at-risk migrant and refugee populations
The laboratory test of Vitamin D is 25-hydroxy vitamin D - 25(OH)D.The recommended level is > 50 nmol/L.(Note: Some laboratories report levels with a different range)
Severe deficiency
< 12.5 nmol/L
Moderate deficiency
12.5 - 29 nmol/L
Mild deficiency
30 - 49 nmol/L
Sufficient
> 50 nmol/L
Elevated
> 250 nmol/L
Age
Deficiency level
Treatment (oral doses D3)
Maintenance/prevention in children with ongoing risk factors
Preterm
Mild
200 IU/kg/day, maximum 400 IU/day
200 IU/kg/day, max. 400 IU/day
Moderate or severe
800 IU/day, review after 1 month
< 3 months (term)
400 IU/day for 3 months
400 IU daily
1,000 IU/day daily for 3 months
3 - 12 months
1,000 IU/day for 3 months,OR 50,000 IU stat and review after 1 month (consider repeating dose)
1 - 18 years
1,000-2,000 IU/day for 3 months,OR 150,000 IU stat
400 IU daily,OR 150,000 IU at start of Autumn
1,000 - 2,000 IU daily for 6 months,OR 3,000 - 4,000 IU daily for 3 months,OR 150,000 IU stat and repeat at 6 weeks
Notes: There is a wide range of commercially available tablets, capsules and liquid supplements. See Supplements photoboard