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Drinking Enough Water During a Juice Fast

author image Marie Dannie
Marie Dannie has been a professional journalist since 1991, specializing in nutrition and health topics. She has written for "Woman’s Own," the "Daily Mail," the "Daily Mirror" and the "Telegraph." She is a registered nutritionist and holds a Bachelor of Science degree with honors in food science from the University of Nottingham.
Drinking Enough Water During a Juice Fast
A pitcher of water on a table with fresh lemons, mint leaves, and cucumbers. Photo Credit: Astryda/iStock/Getty Images

Staying properly hydrated is key for overall health, including when you are undertaking a juice fast. While MedlinePlus states that the general recommendation is six to eight glasses of fluids per day, you may need more than this on a juice fast. The fast is purported to detoxify your body by flushing out contaminants from the environment, foods, medications and other chemicals. However, the theory and benefits of detoxification are not supported by scientific evidence, and there is also no research supporting the claim that fasting can help heal your body of illnesses or cure diseases. Speak to your doctor about going on a juice fast as it could be dangerous for some.

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About Juice Fasts

During a juice fast, you abstain from consuming any foods or fluids other than freshly made juices. While some juice fasts emphasize certain types of juices, such as lemonade or green juices, you can generally drink any juice on this fast. However, choosing freshly made, all-natural juices is key, as commercial juices often contain large amounts of added sugar and preservatives, which are said to be counterproductive to the detoxification process.

How Much Water to Drink

Cherie and John Calborn, authors of “Juicing, Fasting and Detoxing for Life,” say drinking water in addition to the juices is key for ridding your body of toxins. You need to drink at least half of your body weight in ounces of water every day of a juice fast. This means if you weigh 150 pounds, you need to drink 75 ounces of water each day, or almost 9 1/2 8-ounce glasses each day.

Plain Water Is Best

You can drink water anytime during the day, including at mealtimes with your juices. However, to prevent drinking too much juice, alternate between one glass of water and one glass of juice when not at meals. While you can choose any type of water to drink, unflavored water is recommended. Flavored waters often contain added chemicals to produce the taste, and they may contain added sugars, making them higher in calories and potentially unsuitable for a fast. Similarly, choose noncarbonated water because the extra gas may cause bloating and discomfort in your abdomen.

Importance of Hydration

Water makes up over two-thirds of your body weight and is key for all functions and processes. It lubricates your joints and helps your body get rid of waste, both through urination and by encouraging stools to pass through your system. You may require extra fluids if you are engaging in physical activity during your fast or if you are sweating from heat exposure. Signs of dehydration include dark-colored urine, a dry or sore throat and mouth, a headache and muscle cramps. Drink water throughout the day to prevent dehydration while on a juice fast.

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