How much water should I drink a day?
Most adults need roughly 2–3 liters of total fluids daily, adjusted for activity and climate. A provider can personalize hydration guidance around your medications and conditions.
Also called: daily water intake · hydration guide · dehydration signs
Medically reviewed by Dr. Ikechukwu Ogbu, MD
MD · Board-Certified, Internal Medicine · Last reviewed
What may be behind this
Clinical factors worth reviewing with a provider who knows your history. Not a diagnosis.
Frequent urination
Commonly relevant for people looking into "How much water should I drink a day?" — worth reviewing with a clinician who knows your history.
Hypertension
Commonly relevant for people looking into "How much water should I drink a day?" — worth reviewing with a clinician who knows your history.
When to see a clinician
- You have an underlying condition (heart, kidney, liver, thyroid, pregnancy) that could interact with the plan
- You're already on prescription medications and want to check for interactions
- Symptoms are affecting sleep, work, or daily life and haven't improved with lifestyle changes
- You want personalized guidance based on labs rather than generic advice