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True or False: Drink 8 Glasses of Water a Day

It is well known that our body is about 60% water, give or take. You are constantly losing water from your body, primarily via urination and sweating. To prevent dehydration, you need to drink adequate amounts of water. How much should you drink every day? Well, the 8×8 rule is a famous theory which states that you should drink eight 8-ounce glasses of water per day. Is that fiction or fact?

The Origin of the 8×8 Rule

In 1945, a report by Heinz Valtin of Dartmouth concluded that the average person needs to consume 1 ml of water per calorie of food they consume. For someone eating a diet of 2,000 calories per day, this adds up to 2,000 ml (roughly 64 oz), or eight 8-oz glasses.

First of all, which actual research this theory is based on remains unknown. And if it’s true, it was misinterpreted as people tend to forget the part that they can get a lot of water automatically from food.

Water-Rich Foods That Help You Stay Hydrated

Let’s see the top 10 list of foods with the richest water that can help you stay hydrated while you don’t feel like drinking water.

According to their water content:

  1. Lettuce: 96%
  2. Cucumber: 95%
  3. Celery: 95%
  4. Zucchini: 94%
  5. Tomatoes: 94%
  6. Watermelon: 92%
  7. Broths and Soups: 92%
  8. Cauliflower: 92%
  9. Cabbage: 92%
  10. Strawberries: 91%

However, as all foods have calories and water doesn’t, it’s better to drink more water if you want to slim down. So apart from absorbing water from foods, how much water should you drink every day for thorough hydration?

How Much Water Should You Drink Each Day?

As a matter of fact, no one can tell you exactly how much water you need every day. This depends on the individual, weather and conditions. You can try experimenting to see what works best for you. Some people may function better with more water than usual, while for others it only results in more frequent trips to the bathroom.

Here are some practical tips for proper hydration:

When you’re thirsty, drink water.

If you experience “dry mouth” and even bad breath, drink water.

If your urine is the color of lemonade, you’re doing well.

If by chance it is leaning toward the color of apple juice, you need to reach for a full glass of water soon.

During high heat and exercise, make sure to drink enough to compensate for the lost fluids.

Remind yourself to drink water even when the weather is cold.

When you’re not thirsty anymore, stop.


Don’t mind the 8×8 Rule, do mind keeping proper hydration every day.

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