维生素D计算器
按年龄计算的每日推荐维生素D摄入量
拍张照片，AI 自动记录饮食 — 饮食与运动，一个 App 搞定。免费下载 App维生素D计算器
维生素D有助于骨骼健康和免疫力。一般建议为婴儿每天400 IU/天，儿童和成人600 IU/天，70岁以上人群800 IU/天。阳光、富含油脂的鱼类和强化食品是主要来源；当阳光照射不足时，补充剂会有所帮助。
常见问题
- How much vitamin D do I need per day?
- Most adults need about 600 IU (15 mcg) of vitamin D daily, rising to 800 IU (20 mcg) after age 70. This calculator tailors the recommendation to your age and status and reports it in both international units and micrograms.
- What is the safe upper limit for vitamin D?
- For most adults the tolerable upper intake level is 4,000 IU (100 mcg) per day from supplements; routinely exceeding it raises the risk of toxicity. The calculator shows this ceiling so you can supplement safely without going over.
- How can I get more vitamin D naturally?
- Sunlight on bare skin is the main source, supported by foods like oily fish, egg yolks and fortified milk or cereal. Because sun exposure varies with season, latitude and skin tone, many people in winter rely on diet or a supplement to meet their needs.