孕期维生素需求计算器 — 公式

Key Prenatal Nutrient Needs

NutrientDaily AmountWhy Folic Acid600 mcgPrevents neural tube defects Iron27 mgSupports increased blood volume Calcium1,000 mgBuilds baby's bones and teeth Vitamin D600 IUAids calcium absorption DHA200 mgBrain and eye development

Extra Calories by Trimester

  • First: No extra needed
  • Second: +340 kcal/day
  • Third: +450 kcal/day

    • 计算示例

    A 28-year-old in her second trimester.

    1. Folic acid = 600 mcg DFE
    2. Iron = 27 mg
    3. Calcium = 1,000 mg (age > 18)
    4. Extra calories = 340 kcal/day (2nd trimester)