How much vitamin D should i take?

Patient: I stay indoors a lot and so get very little Vitamin D. How much Vitamin D should I take? age: 14 weight: 60 kg height: 165cm

Doctor: The Recommended Daily Intake (RDI) of Vitamin D3, due to its high safety profile, may be up  to 10,000 IU per day and b because of the wide role it plays in our health, consuming 2,000 to 4,000 IU per day of this vitamin when sunlight is scarce is a prudent way to improve overall health.