Should You Drink 3 Liters of Water per Day?

It’s no secret that water is vital to your health.

In fact, water comprises 45–75% of your body weight and plays a key role in heart health, weight management, physical performance, and brain function (1Trusted Source).

Studies show that upping your water intake may offer many health benefits (2Trusted Source).

However, the amount of water you need is a subject of controversy — and drinking too much can harm your health.

This article examines the benefits and downsides of drinking 3 liters (100 ounces) of water per day.