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Recommended Daily Water IntakeRecommended Daily Water Intake

Source: MyFoodDiary.com

Recommended Daily Water Intake

Suggested fluid intake is often used interchangeably with suggested water intake, but fluid requirements are met through both foods and drinks. While calorie-free water is the preferred source of fluid, you also consume fluid through fruits, vegetables, and drinks such as coffee, tea, and fruit juices.

There are many methods for calculating daily fluid requirements. One simple equation for adults is 0.5 fluid ounces per pound of body weight per day. For example, if you weigh 140 pounds, multiply 140 by 0.5 to estimate your daily fluid need in ounces. You can then divide that number by eight to estimate your fluid need in cups per day. [example: 140 x 0.5 = 70 fl oz; 70 fl oz divided by 8 = 8.75 cups of fluid per day]

0.5 fl oz x Body Weight in lbs. = Daily Fluid Requirement in fl oz

As you calculate your daily fluid requirements, you will likely find that the number is close to the common recommendation of eight to 12 cups per day. Keep in mind that fluid requirements increase under extreme conditions such as exercise in hot and humid weather and during illness.

Lori Rice, M.S., is a nutritional scientist and author with a passion for healthy cooking, exercise physiology, and food photography.
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