Our bodies constantly lose water as part of the metabolic processes. Our water content of selected foods table below can be useful in determining which foods help you stay hydrated. That equals about 7 cups a day which is roughly equivalent to 7 standard water glasses a day (see oz to cups conversion). This would mean that you need to drink just 56 oz of water a day while the rest will enter your body through food and metabolic processes. Say you need a total of 70 ounces per day. The latter is usually only around 4/5 of the total, thus you actually need to drink slightly less water than your total daily needs. You should be careful to not confuse how much water you need with how much water you need to drink. Since water and beverages are only a part of the input, our calculator will output both your total water intake recommendation as well as how much of it you need to get through drinking fluids. Water input in the human body comes from three main sources: water and other beverages, food, and as a side-effect of metabolic processes. This is what this daily water intake calculator bases its output on. The extent to which water intake requirements are determined by energy intake and expenditure is understudied but in the clinical setting it has long been practice to supply 1 ml per kcal administered by tube to patients unable to take in food or fluids. Those same determinants are also applicable to water utilization and balance and this provides an argument for pegging water/fluid intake recommendations to the better studied energy recommendations. Such measures of expenditure use highly accurate methods and thus TDEE has been set based on solid data rather than the compromise inherent in the Adequate Intake estimations made for water. Energy requirements are strongly evidence-based in each age and gender group based on extensive research which takes into account body size and activity level which are crucial determinants of energy expenditure which must be met by dietary energy intake. We use a rule that expresses water needs in relation to energy requirements in ml/kcal.
Of course, these are estimates based on population averages so consulting your physician or nutritionist is always recommended before making changes to your water consumption or exercise routine.Ĭalculating your recommended total daily water intake and thus optimal hydration requires the estimation of your total daily energy expenditure (TDEE) which measures how much energy (in kcal, kilocalories) you expend during a typical day. The outputs of our water intake calculator are in liters, milliliters, cups (equivalent to a standard glass), and ounces of water. Our water calculator will help you easily estimate how much water you need per day including how much of it you will need to drink in the form of fluids (pure water or beverages). Adjustments for climate, excessive sweating & pregnancy.
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