HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

question-icon

How Many Liters Of Water Does A Person Need Per Day?

default
Posted on Mon, 3 Apr 2017
Question: Hi there,

I was wondering about amount of water per day one should consume. I'm 36 years old, don't smoke, exercise regularly, and am trying to lose weight (including a healthier diet) and also lower my blood pressure (which is in the prehypertensive range). For many years, I have drank a lot of water and never really considered if I might actually be drinking TOO much. I drink a glass of water:

- When I get up (12 oz)
- Morning supplements (12 oz)
- When I exercise (12+ oz [probably closer to 16])
- After exercise (12 oz)
- Evening supplements (12 oz)
- Before bed (12 oz)
- I generally also have 2 cups (also 12 oz each) of coffee or tea per day

I recently read an article that too much water can actually cause higher blood pressure (since the cardiovascular system has to process it all) and slow down metabolism. Would it be worth trying cutting back, say using 8 oz glasses instead?

Thanks!
doctor
Answered by Dr. Dr Sameer Maheshwari (1 hour later)
Brief Answer:
Around 2 liter per day

Detailed Answer:
Hi,
Welcome.
This is Dr Sameer, cardiologist.
Water is extremely important for our body. Deficiency & excess both are harmful.
Earlier it was said that drink at least 2 ltr water per day to be healthy. This holds good for today also, but they have slightly modified it. It is now said that drink 2 ltr water per day but if you are not losing same amount of water from body, than taking this much water per day can cause dilution of salts in body like sodium & potassium.
So drink that much water which you loose everyday. If you exercise & work out a lot drink 1 to 1.5 ltr extra to the amount of urine output.
Normal heart can always cope up with the load of extra fluid. It is not the cause. The cause is dilution of body salts.
I hope this answers your question.
Good luck
Take care
Note: For further queries related to coronary artery disease and prevention, click here.

Above answer was peer-reviewed by : Dr. Kampana
doctor
Answered by
Dr.
Dr. Dr Sameer Maheshwari

Cardiologist

Practicing since :2010

Answered : 818 Questions

premium_optimized

The User accepted the expert's answer

Share on

Get personalised answers from verified doctor in minutes across 80+ specialties

159 Doctors Online

By proceeding, I accept the Terms and Conditions

HCM Blog Instant Access to Doctors
HCM Blog Questions Answered
HCM Blog Satisfaction
How Many Liters Of Water Does A Person Need Per Day?

Brief Answer: Around 2 liter per day Detailed Answer: Hi, Welcome. This is Dr Sameer, cardiologist. Water is extremely important for our body. Deficiency & excess both are harmful. Earlier it was said that drink at least 2 ltr water per day to be healthy. This holds good for today also, but they have slightly modified it. It is now said that drink 2 ltr water per day but if you are not losing same amount of water from body, than taking this much water per day can cause dilution of salts in body like sodium & potassium. So drink that much water which you loose everyday. If you exercise & work out a lot drink 1 to 1.5 ltr extra to the amount of urine output. Normal heart can always cope up with the load of extra fluid. It is not the cause. The cause is dilution of body salts. I hope this answers your question. Good luck Take care