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lifestyle · for constipation

Increase Water Intake

Reviewed by the Nimbera editorial team · Last updated May 2026

Strong evidenceFree

How to use

Drink at least 8 cups (64oz) of water daily. A warm glass of water first thing in the morning may be especially effective for stimulating bowel movement.

How it works

Dehydration is a leading cause of constipation - insufficient fluid causes the colon to absorb too much water from stool, hardening it. Adequate hydration keeps stool soft and easy to pass.

Where to buy

N/A.

Typical cost: Free

Safety notes

Sparkling water works as well as still water. Caffeinated drinks are mild diuretics and do not substitute for plain water intake.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.