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  • Writer's pictureDr. Karuturi Subrahmanyam

How much water you should drink per day?


Water is essential for your health and well-being. It helps your body perform many vital functions, such as:

  • Getting rid of wastes through urination, perspiration and bowel movements

  • Keeping your temperature normal

  • Lubricating and cushioning your joints

  • Protecting your sensitive tissues


But how much water do you actually need to drink every day? The answer is not the same for everyone. It depends on many factors, such as your age, gender, activity level, health condition, and the weather.


General guidelines

As a general rule, you should aim to drink enough water to keep yourself hydrated. This means that your body has enough water to function properly and avoid dehydration. Dehydration can cause symptoms such as fatigue, headache, dizziness, confusion, and dark yellow urine.


One way to check your hydration status is to look at the color of your urine. If it is clear or pale yellow, you are well hydrated. If it is dark yellow or amber, you need to drink more water.

Another way to estimate how much water you need is to use the following formula:

  • For men: Multiply your weight in kilograms by 0.03. The result is the number of liters of water you need per day.

  • For women: Multiply your weight in kilograms by 0.025. The result is the number of liters of water you need per day.

For example, if you are a woman who weighs 60 kg, you need to drink about 1.5 liters of water per day.


Factors that affect your water needs

However, these are only rough estimates. You may need more or less water depending on various factors, such as:

  • Exercise: If you sweat a lot during physical activity, you need to drink extra water to replace the fluid loss. It is important to drink water before, during and after a workout.

  • Environment: Hot or humid weather can make you sweat more and require more fluid intake. You also need more water if you are at a high altitude or in a dry climate.

  • Health: Some health conditions, such as fever, vomiting, diarrhea, kidney stones, bladder infections, or diabetes can increase your water needs. Some medications, such as diuretics, can also make you lose more water. You should follow your doctor’s advice on how much water to drink if you have any of these conditions or take any of these medications.

  • Food: About 20% of your daily fluid intake comes from the food you eat, especially fruits and vegetables that have high water content. You can also get some water from other beverages, such as milk, juice, tea, or coffee. However, you should limit your intake of drinks that contain caffeine, alcohol, or sugar, as they can dehydrate you or have other negative effects on your health.


Tips for drinking more water

If you find it hard to drink enough water every day, here are some tips that can help you:

  • Carry a reusable water bottle with you wherever you go and refill it often.

  • Set reminders on your phone or use an app to track how much water you drink.

  • Drink a glass of water before each meal and snack.

  • Add some flavor to your water with a slice of lemon, lime, cucumber, mint, or berries.

  • Drink herbal teas or infused waters instead of soda or juice.

  • Eat more fruits and vegetables that are rich in water, such as melons, grapes, oranges, tomatoes, cucumbers, celery, and lettuce.


Drinking enough water every day is one of the best things you can do for your health. It can help you feel more energetic, alert, and refreshed. So make sure you stay hydrated and enjoy the benefits of water!


Dr. Karuturi Subrahmanyam, MD, FRCP (London), FACP (USA)

Internal Medicine Specialist


Kify Hospital

Danavaipeta

Rajahmundry

Phone : 85000 23456

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