However, drinking too much may be risky for some people. Those with kidney problems need to be especially careful because excess potassium can build up in the blood and affect the heart.
Coconut water also contains natural sugar, so large amounts may raise blood sugar in people with diabetes or prediabetes. It may also lower blood pressure, which can cause dizziness or weakness in people who already have low blood pressure.
For most healthy people, moderate amounts are generally fine. But excessive intake can cause bloating, nausea, loose stools, fatigue, or stomach discomfort, so it should not completely replace regular water.
