Is coconut water healthy?

We find out if coconut water is all it's cracked up to be.
 
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01 .Introduction

Coconut Water - Fab or Fad?

We investigate whether coconut water drinks are as healthy as they claim, or whether it's just a case of marketing spin.

For more information about beverages, see Food and drink.

Move over wheatgrass, goji berries and vitamin water – this year the latest health fad is coconuts, or coconut water, to be exact. Celebrities from Madonna to Lara Bingle have been pictured downing it, and in Madonna’s case investing millions in the product. There are bottles of coconut water on supermarket shelves, it’s being sold in gyms and yoga studios and online retailers are selling it by the case.

Not to be confused with coconut milk, the creamy substance often found in Thai cooking, coconut water is the clear liquid inside young green coconuts. While fresh coconut water has long been a favourite drink in South-East Asia, as a packaged product it has only recently hit countries such as the US and Australia with the force of a tropical cyclone. 

Estimated annual sales of the beverage are set to top $350m in the US this year (predicted to double next year), and it’s forecast to become one of Australia’s fastest-selling new products with more than 15 new brands already on the market. 

But while the marketing on the packages claims coconut water is a nutritional goldmine, dietary experts CHOICE spoke with say the only real goldmine is for those selling the product.

Cheaper alternatives

One of the star ingredients heavily promoted in coconut water is potassium. A banana has on average about 378mg of potassium, while the coconut water products we examined range from almost the same as a banana, at 328mg, to almost double (733mg). However, fruit and vegetables are our best sources of potassium, according to accredited practising dietitian Melanie McGrice.

“If Australians ensured they were meeting their two serves of fruit and five serves of vegetables each day, they’d easily be meeting their potassium requirements, as well as requirements for a whole range of other nutrients such as fibre and vitamin C,” she says. “A medium potato has about the same amount of potassium as a 500mL bottle of coconut water – and is significantly cheaper.”

* Note: all the bottled brands we bought are 100% coconut water so their properties are the same as coconut water from fresh coconuts.

All about appearance

It's the drink people would reach for thinking they are doing the right thing by consuming a 'natural' product.
- Dr Joanna Henryks

Dr Joanna Henryks, from the University of Canberra, has a special interest in healthy food marketing and consumer behaviour. She says coconut water is especially likely to appeal to those who aspire to a healthy lifestyle but not necessarily a “true” healthy lifestyle as defined by nutritionists and dietitians. “It's the drink people would reach for thinking they are doing the right thing by consuming a 'natural' product,” she says.

And while coconut water is popular right now, Henryk predicts that, not unlike the wheatgrass, goji berry and pomegranate fads, coconut water is unlikely to be around in such a big way in a couple of years. “It just doesn't have enough inherent benefits to be sustainable.”

Miracle or Myth?

While coconut water has been marketed as a healthy alternative to sports drinks and other bottled beverages, accredited practising dietitian Tania Ferraretto says there is little evidence to support the claims made about coconut water and that it’s unnecessary for people to drink it for health reasons. “It’s been marketed and promoted as a source of minerals such as calcium, magnesium and phosphorous, but it only contains small amounts of these and other nutrients.”

A quick glance at some of the products on the shelves and on the net unearths more promises that Ferraretto believes are false. The marketing spin claims coconut water can also assist with weight loss, improve your skin tone and help with digestion, but Ferraretto says there’s no evidence to show any of these claims are true either.

So what does she recommend as an alternative to coconut water? Just plain water. “It’s the best drink to hydrate the body and it’s free, unlike coconut water, which can cost up to $4 a bottle.”


 
 

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