The recommended daily intake of vitamin D3 varies by age:
- Birth to 12 months: 10 mcg (400 IU)
- Children 1–13 years: 15 mcg (600 IU)
- Teens 14–18 years: 15 mcg (600 IU)
- Adults 19–70 years: 15 mcg (600 IU)
These recommendations are from the National Institutes of Health (NIH) Office of Dietary Supplements. It's important to note that these are general guidelines and individual needs may vary. Factors such as sun exposure, skin pigmentation, and certain medical conditions can influence vitamin D requirements. For example, adults over 70 might benefit from slightly higher intake, as indicated in some guidelines, due to decreased ability to synthesize vitamin D in the skin.
It's always a good idea to consult with a healthcare professional to determine the optimal vitamin D3 dosage for your specific circumstances. They can assess your individual needs and provide personalized recommendations.
