Micronutrients & recovery
An adequate daily intake of 15 µg (600 IU) of vitamin D is required for adults and children (aged 1-17) to maintain serum 25(OH)D concentrations at or above 50 nmol/L, which is the target threshold for musculoskeletal and pregnancy-related health.
For adults and children aged 1-17, aim for 15 µg (600 IU) of vitamin D daily, especially if you have limited sun exposure. This intake helps maintain blood levels above 50 nmol/L, which supports bone health and reduces risks associated with deficiency. Infants aged 7-11 months should receive 10 µg (400 IU) daily. This is particularly important in winter months or for those with darker skin tones who synthesize less vitamin D from sunlight.
For adults, an AI for vitamin D is set at 15 µg/day... considering that, at this intake, the majority of the adult population will achieve a serum 25(OH)D concentration near or above the target of 50 nmol/L. For children aged 1–17 years, an AI for vitamin D is set at 15 µg/day... The Panel considers that a serum 25(OH)D concentration of 50 nmol/L is a suitable target value for all population groups.
Why this rating
Based on a comprehensive meta-regression of 83 trial arms by the EFSA Panel, though the Panel notes variability and sets Adequate Intakes (AIs) rather than Average Requirements (ARs) due to uncertainty.
Source
Dietary reference values for vitamin D
EFSA Panel on Dietetic Products et al. · EFSA Journal · 2016
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