1日に飲むべき水の量とその理由

How much water should you drink each day and why?

Reading How much water should you drink each day and why? 6 minutes Next Get more vitamins from water

The importance of water cannot be overstated. The fact that life on Earth cannot exist without it is reason enough to drink more water. We humans are largely made up of water, as are most of our food and nature. However, getting enough water can be difficult, which is why we at waterdrop® are working to make it easier.

Woman drinks water out of a waterdrop® Edition Glass Bottle

Although it depends on your body size and how much you exercise, it's recommended that you drink at least 2 liters of water a day. Drinking the right amount of water is essential for everything from regulating body temperature to digestive function to mental health.

"Scientifically, there is no debate that the human body needs enough water to function well. Unfortunately, many people don't drink enough water, leading to negative health effects."

Martin Murray, Founder of waterdrop®


How much water you should drink per day varies from person to person. You need to take into account your weight, height, and other factors to determine how much you should drink. The recommended average is at least about 2L per day, but this is only a guideline as everyone is different. Other factors such as your lifestyle and how often you exercise should also be taken into account.

Water is being poured out of a waterdrop® Glass Carafe

Why it's important to drink plenty of water

We've all heard that drinking water is very important and that we should drink an adequate amount of water every day to maintain our physical health. In today's fast-paced world, it can be hard to find the time to drink enough water, but at waterdrop® we believe that hydration is essential.

Why your body needs water

  • Water is important for the production of neurotransmitters and hormones in the body, and not drinking enough water can impair your ability to reason and think.
  • Human blood is more than 90% water, and plays a role in transporting oxygen throughout the body. Drinking enough water not only helps transport oxygen, but also prevents dehydration from thickening the blood, making it harder for oxygen to move, and also has the effect of lowering blood pressure.
  • Not only does water aid your digestive system, it's also a key component in keeping everything in your body moving smoothly and efficiently. Drinking water can also help with ulcers and heartburn.
  • The cartilage found in your joints and vertebrae is mostly made up of water, so not drinking enough water can affect the function of your cartilage and lead to joint pain.
  • Drinking water has also been shown to be effective for weight loss. Replacing sugary drinks with water can help you lose weight. Plus, drinking a glass of water before a meal can help you feel fuller, which can help you control how much you eat.
  • Not drinking enough water can negatively affect kidney function and sometimes lead to kidney stones and other health problems.


These are just a few of the reasons why you should stay hydrated - find out for yourself the benefits of staying well hydrated!

Woman is standing next to a bouquet of flowers and a waterdrop® Edition Glass Bottle

The amount of water needed varies from person to person.

One of the factors that determines how much water you need is your lifestyle. Your usual activities will affect how much water you need.

Athlete Icon| waterdrop® Do you like to exercise?

People who run or do weight training often need to drink more water than people who are not active because their bodies lose fluids through sweat. Athletes should drink at least 1 liter of water 90 minutes before exercise to ensure proper hydration and keep their joints hydrated. It is also recommended that athletes drink 500ml of water after exercise to speed up recovery.

Drinks Icon | waterdrop® Do you drink alcohol?

Alcohol is delicious, but it dehydrates the body and can cause a hangover. Make sure to drink a glass of water after drinking alcohol, so you can prevent dehydration and feel good the next day!

Children Icon | waterdrop® Trivia

Children need much more fluid than adults. Their bodies contain about 10% more water than adults, making it even more important that they drink enough fluid.


When your day is busy, it can be hard to stay hydrated. It 's common to reach for a caffeinated coffee or sugary soda to wind down the day, but this tactic can actually be counterproductive. Coffee is a diuretic, which means it strips your body of fluids. Sugary drinks may help in the short term, but once the sugar high wears off, you'll feel worse than before. If you're feeling thirsty, tired, dizzy or unmotivated, a glass of water might be just the thing for you!

If you need a caffeine boost after lunch to wake you up, try our caffeinated flavored SHIRO. If you can't stand the taste of water, why not try our microdrinks for a delicious flavor and added nutritional value?



Perfect for when you're thirsty

It is no exaggeration to say that the most delicious drink in the world is clean water. Water is the source of life and the foundation of human health. If you want to add flavor to your water, Microdrinks are the way to go! They are sugar-free and the flavors of fruits and plants enhance the deliciousness of water. We have varieties for everyone to enjoy, including pomegranate, goji berry, star fruit, lemongrass, mango, and cactus fruit. Simply add the cube to about 450ml-600ml of cold water and wait for it to bubble up, and you can add delicious flavor to your regular water.

One of the most effective ways to stay hydrated without using tap water or bottled drinks is to get water from food. Here are 10 types of vegetables and fruits that contain over 90% water:

  • Cucumber
  • Watermelon
  • lettuce
  • tomato
  • turnip
  • Rhubarb
  • asparagus
  • zucchini
  • grapefruit
  • strawberry


A balanced diet that includes these fruits and vegetables will provide your body with valuable minerals, antioxidants, fiber, and much-needed fluids.