Without enough water, the kidneys use more energy and wear on tissue. Your kidneys need to function adequately to flush out waste from your blood. Eventually, your kidneys will cease to function without adequate water intake. Other organs in your body may also cease to function without water.
Food consumption contributes to 20 percent of your total water intake per day. Some people may get even more water from their food if they eat a significant amount of fruits and vegetables, which contain a high amount of water. People in countries like Greece and South Korea include many more of these foods in their daily diets, resulting in more water intake through foods. Fruits and vegetables with the highest amount of water include :.
Other foods that contain a high amount of water include :. Consuming foods high in water will help prevent dehydration. You must be careful with your fluid intake if you become dehydrated. The appropriate method of rehydration will vary from person to person.
Adults may just need to drink water to rehydrate. Small children may require a drink that includes sodium in addition to water to replenish the body appropriately. Children may need to take this solution in very small amounts at first. Maintaining an adequate amount of water in your body is vitally important to your life. Generally, your thirst will guide you when it comes to how much water you should drink. The only fluid you would want to stay away from is alcohol because it actually causes the body to lose more water than normal through excessive urination.
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For more information, visit our medical review board. A person can survive weeks without food depending on their body composition, environment, and sex.
Meanwhile, the human body can only survive two to four days without water. Starvation is extremely dangerous and causes organ failure, which will prove fatal unless treated. Visit Insider's Health Reference library for more advice. Already subscribed? Log in. Forgotten your password? Want an ad-free experience? View offers.
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