Benefits of cutting down on salt questioned

PHOTO: Benefits of cutting down on salt questioned

LONDON - Reducing salt in the diets of the general population may not have an overall positive health impact, according to a review of more than 160 scientific studies published Wednesday.

In an analysis that fuels a row over the health effects of salt, researchers writing in the American Journal of Hypertension and the Cochrane Library journal said the systematic review added to growing evidence suggesting officials should re-evaluate policies advising everyone to eat less salt.

The review -- which collated and analyzed the findings of 167 previous studies -- found that while cutting down on salt reduced blood pressure in people who have normal or high blood pressure, it also caused increases in some hormones and other compounds that can adversely affect people's heart health.

"I can't really see, if you look at the total evidence, that there is any reason to believe there is a net benefit of decreasing sodium intake in the general population," said Niels Graudal of Copenhagen University Hospital in Denmark, who led the review and spoke to Reuters in a telephone interview.

Lowering salt intake is known to reduce blood pressure, but research has yet to show whether that translates into better overall heart health in the wider population.

Despite that, many countries have government-sanctioned guidelines calling on people to cut their salt or sodium intake for the sake of their longer-term health.

High blood pressure, or hypertension, is one of the leading causes of strokes, heart attacks and other cardiovascular diseases, which together are the biggest killers worldwide and claim more than 17 million lives a year.

"The question is not 'should' we reduce salt intake, but 'how'," said Graham MacGregor, a professor of cardiovascular medicine and chairman of the World Action on Salt campaign group, who said he strongly disagreed with Graudal's findings.

The World Health Organization (WHO) lists reducing salt intake among its top 10 "best buys" for reducing rates of chronic disease.

Franceso Cappuccio, Head of the WHO Collaborating Center for Nutrition at the University of Warwick, agreed with MacGregor and said Wednesday's study "should not distract our attention for implementing salt reduction policies at population level globally, as directed by national governments, the World Health Organization and the United Nations."

Net benefit?

Net benefit?

But a series of studies looking at dietary salt have recently suggested the evidence base for population-wide salt-reduction policies may not be as strong as first thought.

A separate Cochrane Library review conducted by British researchers and published in July found no evidence that small reductions in salt intake lowered the risk of developing heart disease or dying prematurely.

And another study by Belgian scientists published in May found that people who ate lots of salt were no more likely to get high blood pressure, and were statistically less likely to die of heart disease, than those with low salt intake.

Graudal said his results showed that when salt intake is reduced, there are increases in some hormones and in fats known as lipids "which could be harmful if persistent over time."

He added that because none of the studies in the review were able to measure long-term health effects, his team was not able to say "if low salt diets improve or worsen health outcomes."

Graudal said the growing number of studies questioning the net benefit of salt reduction meant public health officials should look again at their guidelines.

Current government advice in Britain calls for an acceleration of the reduction in salt intake by adults from a maximum of 6 grams (g) a day by 2015 to 3g by 2025.

U.S. dietary guidelines recommend Americans consume less than 2.3g of sodium daily, or 1.5g for certain people who are more at risk of high blood pressure or heart disease. A teaspoon of salt, or roughly 5g, holds around 2.3g of sodium.

MacGregor disputed Graudal's conclusion about the lack of a net benefit and said the review "clearly shows once again that decreasing salt intake lowers blood pressure."

"This study, contrary to the authors' claims, supports the wealth of evidence that reducing our salt intake will be immensely beneficial in preventing strokes, heart attacks and heart failure," he said in a statement emailed to Reuters.

Purchase this article for republication.

VIDEOS YOU SHOULD WATCH

  • #Joeyjios: We try bubble tea mala hotpot and bubble tea toast

    Full story: http://www.asiaone.com/food/we-try-bubble-tea-mala-hotpot-and-bubble-tea-toast-guess-which-ones-got-us-hooked Mala and bubble milk tea within the same hotpot? What about bubble tea on toast? Who even comes up with these ideas?! This week on #Joeyjios, we give these dubious food creations a taste-test to see if they're worth your time, money and calories. #bubbletea #bbt #boba --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com
  • Thirstdays: Where we talk weird dates and wild fantasies

    Full story: https://www.asiaone.com/entertainment/thirstdays-where-we-talk-weird-dates-and-wild-fantasies Ooo, it's been a hot week and the thirst is real at AsiaOne. Join Le En and Bryan as they chat about weird dates, constant 'cravings', and Beyonce's thigh gap! And they are quenching that thirst with a cup of root beer float to celebrate the return of a certain fast food restaurant. Thirstdays is a fortnightly AsiaOne #entertainment series where our hosts Le En and Bryan give you a peek into their personal lives while they satisfy their thirst over a drink, have a no-holds-barred chat, and do fun things. #gossip #confessions #realness --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com
  • Don't Say Cannot Ep4: He beats people up, but for the country

    Full story: http://www.asiaone.com/singapore/dont-say-cannot-delinquent-national-wrestler He used to beat people up, simply because he had "too much energy" to expend. Now, he still beats people up - but for the country. Meet 24-year-old #Singapore national wrestler Toh Xin Ran. Seeing the number of medals that he has been awarded and the respectful manner in which he now interacts with his wrestling coach, it is hard to imagine that Xin Ran used to be a troubled kid in his younger days. #wrestling #sportsman --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com
  • #Joeyjios: Taste-testing The Alley Luxe and CHICHA San Chen

    Full story: https://www.asiaone.com/food/alley-luxe-and-chicha-san-chen-opens-week-heres-what-try A Michelin-standard bubble tea for $4.70? A drink that looks like the Northern Lights? This week, #Joeyjios her colleague Le En to check out two new bubble tea (BBT) stores that are opening along Orchard Road. Which will they prefer? Watch to find out. #Thedeerishere #TheAlley #Chichasanchen #Boba --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com
  • Office Tea Episode 5: Bosses and Things

    It’s been a few weeks - let’s find out if the higher-ups of AsiaOne have any regrets about hiring Le En. Efforts were made to make nice, charity is involved and work is never-ending still. Follow and subscribe so you won't miss a single episode of our new series, Office Tea! To catch more of her antics, follow her @goofy_feline! --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com
  • #Joeyjios: DIY your way into mum's heart this Mother's Day

    Full story: https://www.asiaone.com/women/joeyjios-diy-your-way-mums-heart-mothers-day Mother’s Day is this Sunday! Have you gotten mum a gift yet? This week on #Joeyjios, Joey tries her hand at DIY projects that’s thoughtful, useful and inexpensive. #Mothersday #DIY --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com
  • Don't Say Cannot Ep3: He 'sees' the world with the help of tech

    Full story: https://www.asiaone.com/singapore/dont-say-cannot-he-may-be-blind-he-can-text-faster-you Edwin Khoo, 43, surprises friends with the speed at which he types on his phone. The reason? He's been blind since birth. But #technology has been the game-changer for Edwin in navigating the world around him despite his #disability, allowing him to #travel and even host his own online #podcast. --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com
  • Office Tea Episode 4: The Dress Code

    It’s in the employee handbook - but does ANYONE actually read and follow the dress code? Are calves too scandalous? Le En puts on Athleisure and tries to get away with it! Follow and subscribe so you won't miss a single episode of our new series, Office Tea! To catch more of her antics, follow her @goofy_feline! --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com
  • Caryn Cheng finds the best deals at IMM's Greater Savings Home and Furnishing Sale

    Full story: https://www.asiaone.com/singapore/5-couples-share-most-expensive-items-they-have-ever-bought-their-home AsiaOne challenges Caryn Cheng to find the best deals at the upcoming #IMM Greater Savings Home and Furnishing #Sale. IMM's Greater Savings Home & Furnishing Sale will start May 13 to 19. With 20 per cent off storewide at Best Denki and discounts of up to 50 per cent at stores such as INKAGU Outlet by Picket & Rail, Linen Gallery Outlet and Red Apple from May 17 to 19, this epic sale is not to be missed. Address: 2 Jurong East Street 21, Singapore 609601 Opening hours: 10am to 10pm #brandedcontent --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com
  • #Joeyjios: I try a ballet-inspired workout despite my two left feet

    Full story: https://www.asiaone.com/singapore/joeyjios-i-try-ballet-inspired-workout-despite-my-two-left-feet Tendu, Arabesque and Grand Pliés? This week on #Joeyjios, I found out that these are in fact, not edible food dishes, but dance moves in ballet.  Watch as former professional ballerinas and co-founders of #BalletBody, Lisha Chin and Alison Carroll, take me through a snippet of their hour-long ballet-inspired workout while I try my best to keep up.  #Ballet #Barre #Fitness --- Read more: http://www.asiaone.com/ FOLLOW us on - Facebook: https://www.facebook.com/asiaonecom - Twitter: https://twitter.com/asiaonecom - Instagram: https://www.instagram.com/asiaonecom/ EMAIL: For story leads, business enquiries, contact asiaone@mm2entertainment.com

SERVICES