How much water is a 21 year old supposed to drink? A personalized guide
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4 min read
According to the National Academies of Sciences, Engineering, and Medicine, the adequate daily fluid intake for men aged 19 and older is 13 cups (3.7 liters) and for women of the same age is 9 cups (2.7 liters). This general guideline provides a starting point for determining how much water is a 21 year old supposed to drink, but individual needs can vary significantly based on lifestyle factors.
