What is the recommended dosage of vit d 3?

The recommended dosage of vitamin D3 can vary based on age, health status, and specific needs. Generally, for adults, a daily intake of 600 to 800 IU (15-20 mcg) is often suggested, while some individuals may require higher doses, especially if they are deficient. It's important to consult with a healthcare provider for personalized recommendations and before starting any supplementation.