每日饮水推荐

🩺 Daily Water Intake Recommender

Estimate daily fluid needs from body weight, activity duration and climate, and break the total between plain water, beverages and the water held in food.

📐 计算公式与说明

每日推荐饮水量(本页代码口径):饮水量=体重×35×活动系数×气候系数(mL,体重 kg,基准 35mL/kg);联动量:折合杯数=饮水量÷250(杯,按 250mL/杯)。校验:无强校验,空值按 0 兜底。判据:无固定分级,活动量越大、气候越热(系数越高)补水需求越多。

含食物水分,炎热/运动需增加。

Formula & Standard References

Item Formula / Note Source / Standard
Recommended total adult total water intake includes drinking water and food moisture by sex and activity Chinese Dietary Guidelines 2022
Drinking portion plain drinking covers about half the total with food supplying the rest EFSA 2010, dietary reference values water
Special cases heat exercise pregnancy and lactation raise needs while renal or cardiac disease limits them EFSA 2010, dietary reference values water

📚 深度解析:每日饮水推荐

💡 常见使用场景

方法
算法:推荐饮水量 = 体重(kg) × 35 × 活动系数 × 气候系数(mL);折合杯数 = 推荐量 ÷ 250。活动/气候系数≥1(如 1.2、1.1)。约 20–30% 来自食物水。要求各值>0。
算例
例1(65kg、活动 1.2、气候 1):推荐 65×35×1.2×1=2730mL,约 10.9 杯(250mL)。例2(70kg、活动 1.35、气候 1.1):推荐 70×35×1.35×1.1=3641mL。

❓ 常见问题(FAQ)

"每天 8 杯"准吗?
是粗略说法;更准确按体重×30–35mL 估,运动/炎热/哺乳需加。但总量含食物水,不必全靠喝水。
喝水过量有害吗?
有水中毒(低钠)风险,尤其短时间大量;肾功能正常者一般不易,但马拉松等长时间运动须适量补盐。