Is Coconut Water Healthy? Dietitian Insights

We consulted dietitians to share their insights about the benefits of coconut water, how to incorporate it into your diet, and instances when you might want to avoid it.

Coconut water is primarily known for its rich content of electrolytes, but that’s just the beginning:

It’s Extremely Hydrating

Coconut water’s primary advantage, like regular water, is its hydration capacity. “Hydration keeps our joints lubricated, provides nutrients to our cells, and helps maintain our body temperature,” says Keri Gans, M.S., R.D. According to her, coconut water can be a good rehydration option post-exercise, although it has a lower sodium content compared to typical sports drinks, which may affect its efficiency.

Drinking sufficient water daily is vital for maintaining health. The Academy of Nutrition and Dietetics suggests that men and women should aim for approximately 13 and 9 cups of water daily, respectively, explains Megan Meyer, Ph.D.. With coconut water being approximately 95% water, it can help you meet your hydration goals.

It’s Rich in Essential Nutrients

“Depending on the brand, an 8 oz serving of coconut water can provide around 500 milligrams (mg) of potassium, 30 to 40 mg of sodium, and 4% of your daily magnesium and calcium needs,” explains Joanna Gregg, R.D.. “If your diet lacks any of these nutrients, coconut water may help you reach your daily recommended intake.”

It’s a Natural Source of Electrolytes

Electrolytes, essential minerals not present in water, are critical for various bodily functions such as hydration, muscle operation, and blood pH balance, according to the National Library of Medicine. When you sweat, you lose electrolytes. While sports drinks typically replenish these through added sugars and chemicals, natural coconut water provides a healthier option, containing more than double the electrolytes found in traditional sports drinks.

It’s High in Potassium

Meyer highlights coconut water’s exceptional potassium content, which can benefit muscle performance and other bodily functions. “The U.S. Dietary Guidelines for Americans regard potassium as one of the four nutrients of concern,” she adds. Inadequate potassium can lead to elevated blood pressure, decreased bone calcium, and an increased risk of kidney stones. In this beverage, one cup yields approximately 500 mg of potassium.

It Might Benefit Heart Health

Regarding potassium, an increase in your intake through coconut water can positively impact heart health. It helps relax blood vessels, promotes adequate blood flow, and regulates blood pressure, explains Sarah Olszewski, M.S., R.D.N., C.D.N.. This is particularly relevant for those consuming high sodium diets, as potassium may counteract sodium’s effects on blood pressure, according to the American Heart Association (AHA).

It’s Low in Calories

If you’re wondering whether coconut water is beneficial for weight loss, it can be a refreshing lower-calorie alternative to juice or soda. That said, it shouldn’t replace plain water when it comes to weight management.

“Substituting sugary beverages with coconut water can be a healthier choice for those looking to control their weight,” says Olszewski. “However, read labels carefully, as some brands may have added sugars, increasing their calorie content. Opt for pure, unsweetened coconut water whenever possible.”

It Functions as a Natural Antioxidant

“Coconut water is rich in antioxidants, which may help neutralize free radicals and reduce oxidative stress,” explains Olszewski. Although initial animal studies show promise, further research is necessary to confirm these benefits in humans.

Coconut water comprises about 94% water with minimal fat. It’s important to distinguish it from coconut milk, which contains approximately 50% water and is significantly higher in fat.

Coconut water is low in calories and offers vitamin C along with various electrolytes such as potassium, sodium, calcium, and magnesium, according to Gans. A 240 ml serving (about one cup) contains 60 calories, along with:

• Carbohydrates: 15 g
• Sugars: 8 g
• Calcium: 4% of the daily value (DV)
• Magnesium: 4% of the DV
• Phosphorus: 2% of the DV
• Potassium: 15% of the DV

While coconut water’s high potassium levels can be beneficial, some individuals may need to be cautious. Melissa Prest, D.C.N., R.D.N., from the Academy of Nutrition and Dietetics explains that individuals with chronic kidney disease should monitor or limit their potassium intake, as their kidneys may struggle to eliminate excess potassium. Those on certain potassium-retaining medications, like specific blood pressure medications, should also be cautious. Consulting a physician or registered dietitian is advisable in these cases.

Incorporating coconut water into your daily regimen can be a healthy choice, particularly for those living in hot climates and engaging in regular exercise, according to Olszewski. However, it’s always advisable to consult your healthcare provider before adding any new dietary element, especially if you have pre-existing health issues like kidney disease or are on certain medications.

Prest urges moderation in consumption, as excessive coconut water intake could lead to bloating or stomach distress. Additionally, safety should be considered: fresh or unpasteurized coconut water may harbor foodborne pathogens, such as Listeria monocytogenes. Choosing pasteurized products or properly processed fresh coconut water can mitigate this risk.

Ultimately, plain water is still your best option for hydration, notes Gans.

The simplest way to enjoy coconut water is to pour it into a glass and drink it as is, according to Gans. “Due to its mineral content, it is advisable to limit yourself to one to two cups per day.” You can also incorporate it into smoothies in place of standard water or juice. Alternatively, it can serve as a base for chia seed pudding, in vinaigrette dressings, or anytime you want to add a natural sweetness.

Before diving into the benefits of this natural sports drink, Jennifer Christman, R.D.N., L.D.N., C.P.T. recommends checking nutritional labels first and choosing options that are 100% coconut water with no unnecessary additives or sugar.