I think it’s a crazy story. Which doctor on earth would prescribe a 5000 IU vitamin D dosage daily without a specific treatment length? Because the recommended

I think it’s a crazy story. Which doctor on earth would prescribe a 5000 IU vitamin D dosage daily without a specific treatment length? Because the recommended dosage is just 400 IU daily and almost all medical sites warn about high dosage above 4000 IU Vitamin D daily, I think the doctor who prescribed a 5000 IU daily dosage without a specific treatment length was plainly irresponsible or the patient was not followed the doctor's instruction correctly, which is equally bad and irresponsible for one’s health.