Potassium by serving size
| Serving | Potassium | % of adult women's AI (2,600 mg) | % of adult men's AI (3,400 mg) |
|---|---|---|---|
| 100 ml | 250 mg | 10% | 7% |
| 200 ml | 500 mg | 19% | 15% |
| 240 ml (1 cup) | 600 mg | 23% | 18% |
| 250 ml | 625 mg | 24% | 18% |
| 330 ml | 825 mg | 32% | 24% |
| 450 ml | 1,125 mg | 43% | 33% |
| 1 litre | 2,500 mg | 96% | 74% |
Potassium values are calculated from USDA FoodData Central (250 mg per 100 g). Adequate Intakes (AI) are from the NIH Office of Dietary Supplements.
Is coconut water high in potassium?
Yes, for a drink. A 240 ml glass has more potassium than a medium banana (about 600 mg vs 422 mg) for less than half the calories. Per 100 g, though, banana is higher. See the full coconut water vs banana comparison.
Why potassium matters
Potassium is an essential mineral. Your body uses it for normal kidney and heart function, muscle contraction and nerve signals. Many people eat less potassium than recommended, mostly because they eat too few fruits, vegetables, beans and dairy foods. Coconut water is one easy way to add some.
Packaged coconut water can be lower
The USDA values describe coconut water straight from the nut. Potassium in packaged products varies with coconut variety, maturity and processing, and some brands declare noticeably less per serving. Compare labels per 100 ml.
How much is too much?
For healthy adults with normal kidney function, potassium from food and drinks is rarely a problem, because the kidneys remove the excess. There are rare case reports of dangerously high blood potassium after very large amounts of coconut water, usually together with other risk factors. People with kidney disease, or those taking medicines that raise potassium such as ACE inhibitors, ARBs or potassium-sparing diuretics, should follow their doctor's advice.
Related guides
FREQUENTLY ASKED QUESTIONS
Quick answers.
Does coconut water have potassium?
Yes. Potassium is its main mineral, at about 250 mg per 100 ml.
How much potassium is in 240 ml of coconut water?
About 600 mg, based on USDA data.
How much potassium is in 330 ml of coconut water?
About 825 mg for plain coconut water. Many packaged 330 ml products declare less, so check the label.
Does coconut water have more potassium than a banana?
Per serving, yes: about 600 mg per glass vs 422 mg per medium banana. Per 100 g, banana has more.
Can I drink coconut water if I have kidney disease?
Ask your doctor first, because you may need to limit potassium.
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