Vitamin D Requirement Calculator

Calculate your daily vitamin D needs based on age and health factors. Essential for bone health, immune function, and overall wellness.

USA Guidelines

Calculate Your Vitamin D Needs

Recommended intake varies by age group
Sun exposure affects natural vitamin D synthesis
Darker skin requires more sun exposure for vitamin D synthesis

Your Results

Daily Vitamin D Requirement
600
International Units (IU)

Recommendation

Based on your age (30 years), you require 600 IU daily. Consider supplements if sun exposure is limited.

Age Factor 600 IU
Deficiency Adjustment 0 IU
Skin Tone Adjustment 0 IU

Good Sources of Vitamin D

  • Fatty fish (salmon, mackerel)
  • Egg yolks
  • Fortified dairy products
  • Vitamin D supplements

About Vitamin D Requirements

Why Vitamin D Matters

  • Essential for calcium absorption and bone health
  • Supports immune system function
  • May help prevent certain diseases
  • Important for muscle function

Recommended Daily Intake (USA)

  • Birth to 12 months: 400 IU
  • Children 1-13 years: 600 IU
  • Teens 14-18 years: 600 IU
  • Adults 19-70 years: 600 IU
  • Adults 71+ years: 800 IU
  • Pregnant/Lactating: 600 IU

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