The kidneys are one of the most vital organs in the human body. Located on either side of the spine, just below the waist, they are shaped like kidney beans and act as the body’s natural filter. Their primary function is to clean the blood, remove toxins, and flush out excess water in the form of urine. Along with this, kidneys regulate minerals, balance electrolytes, help in controlling blood pressure, and even support the production of red blood cells.

When the kidneys do not function properly, toxins start building up in the body, which can lead to serious health problems. That’s why maintaining kidney health is essential — and water plays a key role in it.

Why Water is Important for Kidney Health

Water is essential for almost every process in the body, but it is particularly crucial for the kidneys.

• Adequate water intake helps flush out waste and toxins.

• It dilutes urine, reducing the risk of kidney stones and urinary tract infections (UTIs).

• Lack of water makes urine more concentrated, putting extra strain on the kidneys.

• Prolonged dehydration may even increase the risk of kidney damage.

Simply put, water is the most natural and effective medicine for healthy kidneys.

How Much Water Should You Drink Daily?

According to Dr. Himanshu Verma, HOD, Nephrology Department, Safdarjung Hospital, a healthy adult should generally drink 2 to 3 liters of water daily.

However, the exact amount depends on:

• Age and body weight

• Climate (higher intake needed in summers)

• Physical activity (more water needed during workouts or excessive sweating)

• Medical conditions (such as kidney disease, diabetes, or high blood pressure, where water intake must follow medical advice)

Dr. Verma also cautions that drinking too much water can be just as harmful as drinking too little. The balance is key.