免费孕期维生素需求计算器
计算孕期关键维生素和矿物质的推荐摄入量。
years
Folate / Folic Acid
600 mcg DFE
Iron27 mg
Calcium1,000 mg
Vitamin D600 IU
DHA (Omega-3)200 mg
Extra Daily Calories340 kcal
Folate / Folic Acid vs Age
公式
Key Prenatal Nutrient Needs
Extra Calories by Trimester
计算示例
A 28-year-old in her second trimester.
- 01Folic acid = 600 mcg DFE
- 02Iron = 27 mg
- 03Calcium = 1,000 mg (age > 18)
- 04Extra calories = 340 kcal/day (2nd trimester)
常见问题
When should I start taking prenatal vitamins?
Ideally, start at least one month before conception. Folic acid is most critical in the first 4 weeks when the neural tube forms, often before you know you are pregnant.
Do I need the same nutrients in every trimester?
Core nutrient needs remain similar throughout pregnancy. Calorie needs increase in the 2nd and 3rd trimesters. Iron needs are highest in the 3rd trimester.
Can I get enough from food alone?
A balanced diet provides many nutrients, but most healthcare providers recommend a prenatal supplement to ensure adequate folic acid, iron, and vitamin D intake.
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