Calculate optimal Vitamin D3 dosages in milligrams (mg) using your body weight in kilograms (kg) or pounds (lbs). Our free dosage calculator provides personalized dose recommendations based on research data. Mild, moderate, and strong Vitamin D3 dosage range options are provided for safe use.
Calculate Vitamin D3 Dosage
Based on your body weight of kg
Vitamin D3 is a fat-soluble secosteroid that regulates calcium absorption and functions as a hormone affecting over 1000 genes, which supports immune function, cognitive performance, and mood regulation while enhancing calcium utilization for bone health.
How to Take Vitamin D3
Vitamin D3 is typically dosed at 1000-5000 IU daily, best taken with a fat-containing meal to enhance absorption, blood levels should be monitored with higher doses, and co-supplementation with vitamin K2 is recommended to direct calcium to bones rather than soft tissues.