維生素D計算器
依年齡計算的每日建議維生素D攝取量
拍張照片，AI 自動記錄飲食 — 飲食與運動，一個 App 搞定。免費下載 App維生素D計算器
維生素D有助於骨骼健康與免疫力。一般建議為嬰兒每天400 IU/天，兒童與成人600 IU/天，70歲以上者800 IU/天。陽光、富含油脂的魚類和強化食品是主要來源；陽光照射不足時，補充劑會有所幫助。
常見問題
- 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.