Coconut Water: Is It Good for You? Benefits vs. Sports Drinks

Dr. Josh Axe · Free quiz

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Coconut water is the clear, lightly sweet water inside young green coconuts, and one cup gives you about 600 milligrams of potassium for just 46 calories.1 It's one of the potassium-rich foods I say you should be eating, alongside avocados, bananas, sweet potatoes and steamed leafy greens, and with a pinch of sea salt it becomes the natural sports drink I recommend you make at home.23

That potassium is why coconut water does so much for your body. In my High Blood Pressure Protocol, one of the first root causes I address is a mineral imbalance: modern food is stripped of potassium and magnesium while it floods you with sodium, and your arteries relax on those first two minerals.5 Potassium works opposite sodium in your body and helps hold water inside your cells, where it belongs,8 so staying hydrated takes the minerals as well as the water, and coconut water gives you both in one of the simplest drinks nature makes.

Did you know?

• Coconut water comes from young coconuts, usually 5 to 7 months old. At 4 to 5 months it tastes sour and astringent, and after about 8 months its flavor starts to fade.9

• Gram for gram, fresh coconut water carries about 17 times the potassium of a typical sports drink, with about half the sugar.110

• Plant scientists add coconut water to the growth media they use to raise new plants from tiny pieces of tissue, because its natural plant hormones help the cells grow.11

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What is coconut water?

Coconut water is the liquid part of the coconut's endosperm, the tissue inside the seed that feeds the young palm, and while the coconut is still sealed, it's practically sterile.16 As the coconut matures, the water slowly gives way to the white meat, and its taste changes along the way: at 4 to 5 months it's sour and astringent, by 7 to 8 months it's at its sweetest, and after about 8 months the flavor fades while its minerals climb.9 That's why the drink you want comes from young, green coconuts rather than the brown, hairy ones you crack open for their meat, which are the mature coconuts behind coconut milk, flakes and coconut oil.

A short history of coconut water

In the classic texts of India, the coconut palm is praised as Kalpavriksha, "the all-giving tree," and in the places where coconuts grow, people have found a use for every part of it.17 The water has served as more than a drink, too, and researchers at the University of the West Indies in Trinidad described young coconut water, given alongside food, as a home rehydration drink for well-nourished children with mild diarrhea,18 and in remote places where medical supplies run short, doctors have even used it as a short-term IV fluid.19

I find it interesting how God put certain foods in the parts of the world where they help people stay hydrated. My wife and I lived in Puerto Rico for a short time, and across the Caribbean the fruits that grow most are tropical ones like coconut and bananas, rich in potassium, while natural sea salt washes up on the shores. In those hot, humid places, where people spend more time outside and sweat more, the foods that keep them hydrated grow right where they're needed.3

Is coconut water good for you?

Coconut water does its best work in your cells' fluid balance, your blood vessels, your kidneys and your gut. It's also one of the drinks on my biblical diet list, along with filtered water, natural sparkling water, herbal teas and fermented drinks,20 so it fits right into the way I recommend you drink every day.

Coconut water nutrition facts

Calculated from USDA FoodData Central: fresh coconut water (FDC ID 170174) at its 240-gram cup and packaged, unsweetened coconut water (FDC ID 174831) at its 245-gram cup. % Daily Value uses FDA reference values.12322

For 46 calories, a cup of fresh coconut water gives you a solid start on potassium, about a seventh of your day's magnesium and manganese, and a tenth of your riboflavin.122 Most of its value is in those minerals, and it brings a little vitamin C too: the fresh water has 5.8 milligrams a cup, and USDA lists 24 milligrams for the packaged kind.123

Sodium is the number that moves around the most. USDA lists 105 milligrams per 100 grams for fresh coconut water and 26 for packaged, while the coconut waters tested in three trials measured 5.09, 9.0 and 15.7 millimoles of sodium per liter, about 12, 21 and 36 milligrams per 100 milliliters.12321412 Potassium, by contrast, stayed high in all three, at about 51 to 53 millimoles per liter, and I make the same point on my show: coconut water is very high in potassium and carries electrolytes like magnesium too, but it doesn't carry a lot of sodium.3 That's the reason a pinch of salt turns it into a real sports drink.

The sugar in unsweetened coconut water is natural and fairly modest, at 6.3 grams in a cup of fresh and 9.6 grams in a cup of packaged.123 Sweetened coconut water is another story, with 8.78 grams of sugar per 100 grams against 3.92 for unsweetened, more than twice as much,2423 so read the label and keep to 100% coconut water.

What does coconut water do for your body?

Coconut water hydrates you and puts potassium back into your cells, where it holds water in place, balances sodium and helps your arteries relax, and much of what it does in your body comes back to that potassium.1825

Hydration, as I teach it, means water is available inside and outside your cells, and when you're dehydrated, your blood becomes more concentrated and your cells shrink.3 Think of each of your cells as a tiny water balloon with potassium packed inside and sodium kept mostly outside. Holding that balance keeps the right amount of water in each cell and gives your nerves and muscles the electrical charge they fire on, which is why every tissue in your body needs potassium to work normally.8 It's also why a sodium-heavy, potassium-light modern diet matters so much, and why my protocol rebuilds the balance with food first, aiming for 4,000 to 4,700 milligrams of potassium a day.5 A cup of fresh coconut water covers about 600 of them.1

That balance matters for your blood vessels too, because potassium helps your arteries relax, and across 22 randomized trials with 1,606 people, eating more potassium lowered systolic blood pressure by 3.49 points and diastolic by 1.96 on average, with the effect seen in people with high blood pressure.25 The cohort studies in the same analysis linked higher potassium intake with a 24% lower risk of stroke.25

Coconut water also carries citrate and malate, natural alkaline compounds, and when healthy adults drank it, the citrate in their urine went up.12 Citrate binds calcium in your urine, which helps keep calcium kidney stones from forming, so this is one way coconut water supports your kidneys, as the kidney stone section below shows.12

Coconut water may also calm inflammation in your gut, in two ways: its potassium has anti-inflammatory effects in lab studies, and it can shift your gut bacteria. In the ulcerative colitis trial below, the bacteria tied to lower disease activity increased.6 Coconut water also carries cytokinins, plant growth hormones such as trans-zeatin and kinetin, which slowed signs of aging in human skin cells and fruit flies in lab studies.11

From the first sip to your kidneys, the path looks like this:

Coconut water benefits

Coconut water vs. sports drinks: which hydrates better?

A typical sports drink is mostly sugar water with a little salt, while coconut water brings plenty of potassium with a little natural sugar, as the table below shows.110

Per 100 grams, from USDA FoodData Central (fresh and packaged unsweetened coconut water, SR Legacy; sweetened coconut water and sports drink, FNDDS).1232410

People often ask me about electrolyte drinks, and my concern with a lot of them, like the most popular one at 1,000 milligrams of sodium, is that they carry far too much sodium for most people and aren't balanced the way they should be.2 If you're not sweating heavily, you're better off with a drink closer to a 1:1 balance of sodium and potassium, which is what I recommend most and what I take myself most of the time, and if you're not sweating at all, one with more potassium than sodium can suit you even better.32 A typical sports drink leans toward sodium, with 39 milligrams of sodium to 15 of potassium per 100 grams, while coconut water leans the other way, heavy on potassium, and a pinch of sea salt moves it toward that even balance.1013 USDA's fresh record, at 105 milligrams of sodium per 100 grams, runs well above what the trials measured: in the two that tested both drinks, the coconut water carried about a quarter to half the sodium of the sports drink.1214

Coconut water holds its own against sports drinks and plain water. Across nine trials in which each person tried several drinks, it rehydrated people about as well as the drinks it was tested against, and the table below shows each one.21430313233343536 The clearest picture comes from a Malaysian trial of 10 healthy men who ran for 90 minutes at about 90°F until they'd lost 3% of their body weight, then drank 120% of what they'd lost over 2 hours. Each man tried all four drinks on different days. Fresh young coconut water kept 65.1% of the fluid in their bodies and the sports drink 68.1%, and both beat plain water, at 58.9%. Coconut water with salt added to match the sports drink's sodium kept 69.4%, and it caused less nausea and stomach upset than either the sports drink or the water.4

That salted version is what I recommend when you sweat a lot. I competed in triathlons from 19 to 29, and looking back, the thing that hurt me most was that I didn't get enough sodium. I was a heavy sweater training in hot, humid places, and I'd get cramps in my quads and calves at the end of races.3 If you're a triathlete or you're sweating buckets day after day, you need more sodium than coconut water carries on its own,2 and a pinch of sea salt fixes that.

Coconut water may help you go longer in the heat, too. In a 2014 study, 8 active men drank coconut water, plain water or a flavored drink before cycling to exhaustion at about 93°F, and they lasted longer after coconut water and made less urine, 161 milliliters against 214 with water and 267 with the flavored drink, with no stomach trouble from any of them.32 How your stomach handles it matters too, and in an earlier Malaysian trial, fresh coconut water caused less nausea and fullness than water, which made it easier to drink in quantity,21 and like any drink, it goes down best sipped steadily rather than gulped.

Coconut water vs. plain water

For everyday drinking, filtered water stays your foundation, at least half your body weight in ounces a day, with coconut water as a mineral-rich addition on top.5 After a sweaty workout, coconut water holds its own against water: it kept more fluid in the body than water in the 2007 trial above, and less of it ran straight through as urine in the 2014 heat study.432 A 2025 systematic review written for international first-aid guidelines looked at three trials of fresh coconut water and found it hydrated about as well as water.37 You'll get a lot of your electrolytes from good water, plenty of vegetables, some fruit, bone broth and a sprinkle of sea salt on your food,3 so make filtered water your drink through the day, add your cup or two of coconut water on top, and reach for it especially after you've been sweating, when its potassium does the most for you.

Coconut water in Chinese medicine: a cooling drink

Traditional Chinese Medicine sorts foods as warming or cooling by the way they affect your body, not only by their temperature, and uses them to keep your body in balance. Coconut water is on my list of cooling foods, alongside watermelon, melons, bananas, avocados, cucumbers and celery.38 That cooling quality is one reason a cold coconut water feels so good on a hot afternoon or after a long, sweaty workout.

It also means the season and your own constitution matter. Potassium-rich foods like coconut water and watermelon tend to cool your body, so in the middle of winter, or if you tend to run cold, have IBS with diarrhea or an underactive thyroid, I'd go lighter on them or pair them with something warming like ginger.3 As the weather turns cold in the fall and winter, try your coconut water at room temperature instead of ice-cold, blend in a slice of fresh ginger, or save it for the days you work up a real sweat. In summer, enjoy it cold.

How to use coconut water

Coconut water is easy to work into your day, and it does its best work when you've lost fluid and minerals. Here are the ways to use it:

• After a workout or a hot day. Drink a cup cold, or keep a bottle of water nearby while you work out and mix in some coconut water or a little watermelon water.39

• As your own sports drink. On extra-hot days, after an infrared sauna or after a really intense workout, when you've sweated hard and need a few more electrolytes, stir a pinch of sea salt into a cup of coconut water (the recipe is below).3

• In place of soda, juice or sweetened sports drinks. The daily drinks in the High Blood Pressure Protocol leave out soda and sweetened drinks, and unsweetened coconut water is an easy swap.5

• As a smoothie base. Use it in place of juice or milk for a lighter, mineral-rich blend, like the healthy smoothie recipes on our site.

How much coconut water to drink

A cup or two a day, 8 to 16 ounces, is a good everyday amount for most people, on top of your filtered water. That sits within the range of the human trials that ran a week or longer, which gave 150 to 600 milliliters a day for 1 to 8 weeks.7406 On a day you sweat heavily, you can drink more, sipped steadily and salted, since your body needs both the water and the electrolytes you've lost. Our guide to how much water you should drink a day covers that filtered-water base.

Coconut water recipes

These four start with the homemade electrolyte drink I recommend, and they all keep the sugar low and the potassium high. For more ideas, see these hydrating drinks.

Homemade coconut water electrolyte drink

When you don't have an electrolyte pack on hand, I like to make an electrolyte drink at home, and you can do it with just coconut water and a little sea salt stirred in.3 The version I give with plain water starts with 8 ounces of water, the juice of one lemon, about 2 teaspoons of local honey and about ¼ teaspoon of sea salt.3

Coconut-watermelon cooler

Watermelon and coconut water are the two bases I give for a homemade sports drink,3 and blended together they make a pale pink, lightly salty cooler for a hot afternoon. For a thicker version, try this hydrating watermelon smoothie.

Berry coconut water smoothie

Coconut water makes a light, low-sugar smoothie base. If you add yogurt, choose coconut, goat's milk or sheep's milk yogurt.

Coconut water and grape spritzer

Grape and coconut water make a good pair, and a splash of natural sparkling water, another drink on my biblical diet list, gives it some fizz.20 See our guide to grapes for more on the fruit.

How to choose the best coconut water

Fresh coconut water is prized for its delicate flavor, and that flavor fades quickly once it's out of the coconut.16 Look for young green coconuts, or the trimmed white ones sold with a punch and straw, which have had their green husk cut away, and keep them in the refrigerator.41 Open one and drink the water soon.

If you buy it packaged, how it was processed matters. Refrigerated coconut water labeled HPP (high-pressure processed) is treated with high pressure instead of heat, and in testing, that processing kept its amino acids, protein, sugars, phenols, vitamin C and antioxidant capacity over 25 days in the refrigerator.9 Shelf-stable coconut water is heat-pasteurized, which keeps the minerals but can break down heat-sensitive nutrients and the volatile compounds that give fresh coconut water its flavor.9

Read the label, too. Pick coconut water with no added sugar or flavors, since sweetened versions carry more than twice the sugar,2423 and if you buy a ready-made electrolyte drink, look for one built on natural ingredients like coconut water or watermelon juice.2 Not-from-concentrate coconut water usually tastes closer to fresh, though in the company-funded U.S. trial, coconut water from concentrate hydrated as well as the pure kind, so let your taste decide.30 You can also ferment coconut water into coconut kefir, a probiotic drink.

Coconut water vs. coconut milk

The two do different jobs in your kitchen. Coconut water is a drink for hydration, while coconut milk is a cooking ingredient that gives curries, soups, smoothies and baked goods their body, and it brings more magnesium and manganese per cup than coconut water, along with its fat.421 It's a good dairy-free swap for milk, and when a recipe calls for cream, canned coconut cream works well in its place.

Coconut water side effects and who should be careful

Kidney disease and potassium-raising medicines. Healthy kidneys clear extra potassium easily, but kidney disease and some blood pressure medicines can let it build up in your blood: ACE inhibitors such as lisinopril, ARBs such as losartan and potassium-sparing diuretics such as spironolactone.8 In one documented case, a 78-year-old man with undiagnosed kidney disease who took losartan and spironolactone developed dangerously high potassium, called hyperkalemia, and paralysis after a week of drinking a lot of king coconut water, and he recovered with emergency care.43 With kidney disease or one of those medicines, clear potassium-rich drinks like coconut water with your prescriber before you make them a daily habit.5

A lot at once. About 9 cups (2.2 liters) in an hour left some men in the company-funded U.S. trial bloated and with an upset stomach, most of all with coconut water.30 Sip it a cup or two at a time.

Children who are dehydrated. Coconut water doesn't have enough sodium or sugar to replace an oral rehydration solution; in coconuts tested from 5 to 12 months of maturity, none reached those levels.44 It can be a home drink, alongside food, for a well-nourished child with mild diarrhea, but not for a child who is already dehydrated.18 For a dehydrated child, use an oral rehydration solution and get medical care for the signs of dehydration.

Spoiled coconuts. In Denmark, a man died after drinking from a ready-to-drink coconut that had sat on the kitchen table for a month instead of in the refrigerator; a fungus inside had made a toxin.41 Keep fresh coconuts cold, and if the water tastes foul or the inside looks slimy, throw it out.

Coconut allergy. It's uncommon, but in one hospital's review of 41 children in Singapore with coconut allergy, about 1 in 10 had anaphylaxis.45 If coconut has ever given you hives, swelling or trouble breathing, skip coconut water.

The bottom line

Coconut water: frequently asked questions

References

1. U.S. Department of Agriculture, Agricultural Research Service. Nuts, coconut water (liquid from coconuts) (SR Legacy, FDC ID 170174; NDB 12119; 1 cup = 240 g). FoodData Central. Accessed November 4, 2026.
2. Axe J. Top 10 Reasons You're Not Healing. The Dr. Josh Axe Show. 2025 (Dr. Axe, solo; YouTube https://www.youtube.com/watch?v=bjU77gf__x4: electrolyte drinks and sodium at 25:21; potassium-rich foods including coconut water at 25:43; natural electrolyte drinks and a 1:1 ratio at 26:13-26:39; higher sodium for heavy sweaters at 26:44).
3. Axe J. How to Hydrate Your Brain, Boost Energy & End Brain Fog. The Dr. Josh Axe Show. 2025 (Dr. Axe, solo; YouTube https://www.youtube.com/watch?v=8nmGynV_jjQ, which these timestamps follow: what hydration means at 1:42; his triathlon cramping at 13:22-13:55; foods God placed in hot climates at 22:38-23:44; coconut water, sodium and the homemade sports drink at 25:23; cooling foods at 26:28; the 1:1 electrolyte ratio at 34:07 and 35:12; the homemade electrolyte drink at 35:43-36:50; water plus electrolytes at 38:31; more electrolytes in heat and hard workouts at 39:00).
4. Ismail I, Singh R, Sirisinghe RG. Rehydration with sodium-enriched coconut water after exercise-induced dehydration. Southeast Asian J Trop Med Public Health. 2007;38(4):769-85. PMID:17883020
5. Axe J. The High Blood Pressure Protocol. DrAxe.com; 2026 (Step 2 "Remineralize": potassium from food, 4,000 to 4,700 mg a day; supplement page: the kidney disease and ACE, ARB and potassium-sparing drug line; daily drinks list).
6. Kedia S, Virmani S, Bajaj A, et al. Coconut Water Induces Clinical Remission in Mild to Moderate Ulcerative Colitis: Double-blind Placebo-controlled Trial. Clin Gastroenterol Hepatol. 2024;22(6):1295-1306.e7. doi:10.1016/j.cgh.2024.01.013. PMID:38278200
7. Awaluddin, Pristika A. The Effect of Young Coconut Water on Blood Pressure in Hypertensive Patients. J Pak Med Assoc. 2024;74(5 Suppl 5):S51-S54. doi:10.47391/JPMA.Ind-RInC-14. PMID:39221800
8. National Institutes of Health, Office of Dietary Supplements. Potassium: Fact Sheet for Health Professionals. Updated June 2, 2022.
9. Shi S, Wang W, Wang F, et al. Research Progress in Coconut Water: A Review of Nutritional Composition, Biological Activities, and Novel Processing Technologies. Foods. 2025;14(9):1503. doi:10.3390/foods14091503. PMID:40361585
10. U.S. Department of Agriculture, Agricultural Research Service. Sports drink, NFS (FNDDS, FDC ID 2710771). FoodData Central. Accessed November 4, 2026.
11. Yong JW, Ge L, Ng YF, Tan SN. The chemical composition and biological properties of coconut (Cocos nucifera L.) water. Molecules. 2009;14(12):5144-64. doi:10.3390/molecules14125144. PMID:20032881
12. Patel RM, Jiang P, Asplin J, et al. Coconut Water: An Unexpected Source of Urinary Citrate. Biomed Res Int. 2018;2018:3061742. doi:10.1155/2018/3061742. PMID:30515390
13. Nuha K, Rusmil K, Ganiem AR, Permadi W, Diah Herawati DM. Single-Blind Randomized Controlled Trial: Comparative Efficacy of Dark Chocolate, Coconut Water, and Ibuprofen in Managing Primary Dysmenorrhea. Int J Environ Res Public Health. 2023;20(16):6619. doi:10.3390/ijerph20166619. PMID:37623203
14. Sandhya VG, Rajamohan T. Beneficial effects of coconut water feeding on lipid metabolism in cholesterol-fed rats. J Med Food. 2006;9(3):400-7. doi:10.1089/jmf.2006.9.400. PMID:17004906
15. Bhagya D, Prema L, Rajamohan T. Therapeutic effects of tender coconut water on oxidative stress in fructose fed insulin resistant hypertensive rats. Asian Pac J Trop Med. 2012;5(4):270-6. doi:10.1016/S1995-7645(12)60038-8. PMID:22449517
16. Burns DT, Johnston EL, Walker MJ. Authenticity and the Potability of Coconut Water - a Critical Review. J AOAC Int. 2020;103(3):800-806. doi:10.1093/jaocint/qsz008. PMID:33241361
17. DebMandal M, Mandal S. Coconut (Cocos nucifera L.: Arecaceae): in health promotion and disease prevention. Asian Pac J Trop Med. 2011;4(3):241-7. doi:10.1016/S1995-7645(11)60078-3. PMID:21771462
18. Adams W, Bratt DE. Young coconut water for home rehydration in children with mild gastroenteritis. Trop Geogr Med. 1992;44(1-2):149-53. PMID:1496708
19. Campbell-Falck D, Thomas T, Falck TM, Tutuo N, Clem K. The intravenous use of coconut water. Am J Emerg Med. 2000;18(1):108-11. doi:10.1016/s0735-6757(00)90062-7. PMID:10674546
20. Axe J, Rubin J. The Biblio Diet. Hachette Book Group; 2025. ISBN 9781546008439. Food list, beverages column (coconut water).
21. Saat M, Singh R, Sirisinghe RG, Nawawi M. Rehydration after exercise with fresh young coconut water, carbohydrate-electrolyte beverage and plain water. J Physiol Anthropol Appl Human Sci. 2002;21(2):93-104. doi:10.2114/jpa.21.93. PMID:12056182
22. U.S. Food and Drug Administration. Daily Value on the Nutrition and Supplement Facts Labels.
23. U.S. Department of Agriculture, Agricultural Research Service. Beverages, Coconut water, ready-to-drink, unsweetened (SR Legacy, FDC ID 174831; 1 cup = 245 g). FoodData Central. Accessed November 4, 2026.
24. U.S. Department of Agriculture, Agricultural Research Service. Coconut water, sweetened (FNDDS, FDC ID 2707573; food code 42404010). FoodData Central. Accessed November 4, 2026.
25. Aburto NJ, Hanson S, Gutierrez H, Hooper L, Elliott P, Cappuccio FP. Effect of increased potassium intake on cardiovascular risk factors and disease: systematic review and meta-analyses. BMJ. 2013;346:f1378. doi:10.1136/bmj.f1378. PMID:23558164
26. Alleyne T, Roache S, Thomas C, Shirley A. The control of hypertension by use of coconut water and mauby: two tropical food drinks. West Indian Med J. 2005;54(1):3-8. doi:10.1590/s0043-31442005000100002. PMID:15892382
27. Gandhi M, Aggarwal M, Puri S, Singla SK. Prophylactic effect of coconut water (Cocos nucifera L.) on ethylene glycol induced nephrocalcinosis in male wistar rat. Int Braz J Urol. 2013;39(1):108-17. doi:10.1590/S1677-5538.IBJU.2013.01.14. PMID:23489503
28. Anurag P, Rajamohan T. Beneficial effects of tender coconut water against isoproterenol induced toxicity on heart mitochondrial activities in rats. Indian J Biochem Biophys. 2003;40(4):278-80. PMID:22900321
29. Preetha PP, Devi VG, Rajamohan T. Hypoglycemic and antioxidant potential of coconut water in experimental diabetes. Food Funct. 2012;3(7):753-7. doi:10.1039/c2fo30066d. PMID:22576019
30. Kalman DS, Feldman S, Krieger DR, Bloomer RJ. Comparison of coconut water and a carbohydrate-electrolyte sport drink on measures of hydration and physical performance in exercise-trained men. J Int Soc Sports Nutr. 2012;9(1):1. doi:10.1186/1550-2783-9-1. PMID:22257640
31. Pérez-Idárraga A, Aragón-Vargas LF. Postexercise rehydration: potassium-rich drinks versus water and a sports drink. Appl Physiol Nutr Metab. 2014;39(10):1167-74. doi:10.1139/apnm-2013-0434. PMID:25017113
32. Laitano O, Trangmar SJ, Marins DM, Menezes ES, Reis GS. Improved exercise capacity in the heat followed by coconut water consumption. Motriz: Rev Educ Fis. 2014;20(1):107-111. doi:10.1590/S1980-65742014000100016
33. Peart DJ, Hensby A, Shaw MP. Coconut Water Does Not Improve Markers of Hydration During Sub-maximal Exercise and Performance in a Subsequent Time Trial Compared with Water Alone. Int J Sport Nutr Exerc Metab. 2017;27(3):279-284. doi:10.1123/ijsnem.2016-0121. PMID:27768399
34. O'Brien BJ, Bell LR, Hennessy D, Denham J, Paton CD. Coconut Water: A Sports Drink Alternative? Sports (Basel). 2023;11(9):183. doi:10.3390/sports11090183. PMID:37755860
35. Bell SK, Spriet LL. Rehydration After Exercise-Induced Fluid Losses: Comparing Flavored Water, Coconut Water, and Carbohydrate-Electrolyte Sports Beverage. J Strength Cond Res. 2026;40(4):431-438. doi:10.1519/JSC.0000000000005322. PMID:41359932
36. Killick JA, Jenkins EJ, Benson J, Macciochi J, Corr L. Comparing the Effects of Water, Sodium-Potassium, and Potassium-Rich Solutions on Fluid Balance and Thermal Strain Following Exercise in the Heat: A Randomized Triple-Blind Crossover Study. Int J Sport Nutr Exerc Metab. 2026;36(6):622-630. doi:10.1123/ijsnem.2026-0016. PMID:42601056
37. De Brier N, Borra V, Berry DC, et al. Oral Rehydration Beverages for Treating Exercise-Associated Dehydration: A Systematic Review, Part II. The Effectiveness of Alternatives to Carbohydrate-Electrolyte Drinks. J Athl Train. 2025;60(1):55-69. doi:10.4085/1062-6050-0686.22. PMID:38116818
38. Axe J. Ancient Remedies: Secrets to Healing with Herbs, Essential Oils, CBD, and the Most Powerful Natural Medicine in History. New York: Little, Brown Spark; 2021. ISBN 9780316496414. "Cold and Heat," pp. 44-45 (cooling foods list, including coconut water).
39. Axe J. Weird Dehydration Warning Signs and Natural Treatments. The Dr. Josh Axe Show. 2017.
40. Farapti, Sayogo S, Siregar P. Plasma Potassium Levels in Healthy Prehypertension Subjects and the Role of A High Potassium Drink. Curr Hypertens Rev. 2017;13(1):65-70. doi:10.2174/1573402113666170224112334. PMID:28240186
41. Birkelund T, Johansen RF, Illum DG, et al. Fatal 3-Nitropropionic Acid Poisoning after Consuming Coconut Water. Emerg Infect Dis. 2021;27(1):278-280. doi:10.3201/eid2701.202222. PMID:33350928
42. U.S. Department of Agriculture, Agricultural Research Service. Nuts, coconut milk, raw (liquid expressed from grated meat and water) (SR Legacy, FDC ID 170172; 1 cup = 240 g). FoodData Central. Accessed November 4, 2026.
43. Hemachandra KHDT, Chandimal Dayasiri MBK, Kannangara T. Acute Ascending Flaccid Paralysis Secondary to Multiple Trigger Factor Induced Hyperkalemia. Case Rep Neurol Med. 2018;2018:6360381. doi:10.1155/2018/6360381. PMID:30002937
44. Fagundes Neto U, Franco L, Tabacow K, Machado NL. Negative findings for use of coconut water as an oral rehydration solution in childhood diarrhea. J Am Coll Nutr. 1993;12(2):190-3. doi:10.1080/07315724.1993.10718301. PMID:8463517
45. Tan LL, Goh SH, Lee MP, Loh W, Goh A, Chong KW. IgE-mediated coconut allergy in tropical Singapore. Asia Pac Allergy. 2025;15(2):99-103. doi:10.5415/apallergy.0000000000000175. PMID:40718127

Dr. Josh Axe, DC, DNM, CNS

Doctor of Natural Medicine · Founder, DrAxe.com

Dr. Axe is a certified doctor of natural medicine, clinical nutritionist, and multiple New York Times bestselling author. He has spent 20+ years in clinical practice helping people heal at the root cause and founded one of the most-visited natural-health platforms in the world.

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