This salt alternative could help reduce blood pressure. So why are so few people using it?
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
One in three Australian adults has high blood pressure (hypertension). Excess salt (sodium) increases the risk of high blood pressure so everyone with hypertension is advised to reduce salt in their diet.
But despite decades of strong recommendations we have failed to get Australians to cut their intake. It’s hard for people to change the way they cook, season their food differently, pick low-salt foods off the supermarket shelves and accept a less salty taste.
Now there is a simple and effective solution: potassium-enriched salt. It can be used just like regular salt and most people don’t notice any important difference in taste.
Switching to potassium-enriched salt is feasible in a way that cutting salt intake is not. Our new research concludes clinical guidelines for hypertension should give patients clear recommendations to switch.
What is potassium-enriched salt?
Potassium-enriched salts replace some of the sodium chloride that makes up regular salt with potassium chloride. They’re also called low-sodium salt, potassium salt, heart salt, mineral salt, or sodium-reduced salt.
Potassium chloride looks the same as sodium chloride and tastes very similar.
Potassium-enriched salt works to lower blood pressure not only because it reduces sodium intake but also because it increases potassium intake. Insufficient potassium, which mostly comes from fruit and vegetables, is another big cause of high blood pressure.
What is the evidence?
We have strong evidence from a randomised trial of 20,995 people that switching to potassium-enriched salt lowers blood pressure and reduces the risks of stroke, heart attacks and early death. The participants had a history of stroke or were 60 years of age or older and had high blood pressure.
An overview of 21 other studies suggests much of the world’s population could benefit from potassium-enriched salt.
The World Health Organisation’s 2023 global report on hypertension highlighted potassium-enriched salt as an “affordable strategy” to reduce blood pressure and prevent cardiovascular events such as strokes.
What should clinical guidelines say?
We teamed up with researchers from the United States, Australia, Japan, South Africa and India to review 32 clinical guidelines for managing high blood pressure across the world. Our findings are published today in the American Heart Association’s journal, Hypertension.
We found current guidelines don’t give clear and consistent advice on using potassium-enriched salt.
While many guidelines recommend increasing dietary potassium intake, and all refer to reducing sodium intake, only two guidelines – the Chinese and European – recommend using potassium-enriched salt.
To help guidelines reflect the latest evidence, we suggested specific wording which could be adopted in Australia and around the world:
Why do so few people use it?
Most people are unaware of how much salt they eat or the health issues it can cause. Few people know a simple switch to potassium-enriched salt can help lower blood pressure and reduce the risk of a stroke and heart disease.
Limited availability is another challenge. Several Australian retailers stock potassium-enriched salt but there is usually only one brand available, and it is often on the bottom shelf or in a special food aisle.
Potassium-enriched salts also cost more than regular salt, though it’s still low cost compared to most other foods, and not as expensive as many fancy salts now available.
Jimmy Dean/Unsplash
A 2021 review found potassium-enriched salts were marketed in only 47 countries and those were mostly high-income countries. Prices ranged from the same as regular salt to almost 15 times greater.
Even though generally more expensive, potassium-enriched salt has the potential to be highly cost effective for disease prevention.
Preventing harm
A frequently raised concern about using potassium-enriched salt is the risk of high blood potassium levels (hyperkalemia) in the approximately 2% of the population with serious kidney disease.
People with serious kidney disease are already advised to avoid regular salt and to avoid foods high in potassium.
No harm from potassium-enriched salt has been recorded in any trial done to date, but all studies were done in a clinical setting with specific guidance for people with kidney disease.
Our current priority is to get people being managed for hypertension to use potassium-enriched salt because health-care providers can advise against its use in people at risk of hyperkalemia.
In some countries, potassium-enriched salt is recommended to the entire community because the potential benefits are so large. A modelling study showed almost half a million strokes and heart attacks would be averted every year in China if the population switched to potassium-enriched salt.
What will happen next?
In 2022, the health minister launched the National Hypertension Taskforce, which aims to improve blood pressure control rates from 32% to 70% by 2030 in Australia.
Potassium-enriched salt can play a key role in achieving this. We are working with the taskforce to update Australian hypertension management guidelines, and to promote the new guidelines to health professionals.
In parallel, we need potassium-enriched salt to be more accessible. We are engaging stakeholders to increase the availability of these products nationwide.
The world has already changed its salt supply once: from regular salt to iodised salt. Iodisation efforts began in the 1920s and took the best part of 100 years to achieve traction. Salt iodisation is a key public health achievement of the last century preventing goitre (a condition where your thyroid gland grows larger) and enhancing educational outcomes for millions of the poorest children in the world, as iodine is essential for normal growth and brain development.
The next switch to iodised and potassium-enriched salt offers at least the same potential for global health gains. But we need to make it happen in a fraction of the time.
Xiaoyue Xu (Luna), Scientia Lecturer, UNSW Sydney; Alta Schutte, SHARP Professor of Cardiovascular Medicine, UNSW Sydney, and Bruce Neal, Executive Director, George Institute Australia, George Institute for Global Health
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Recommended
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
When Did You Last Have a Cognitive Health Check-Up?
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
When Did You Last Have a Cognitive Health Check-Up?
Regular health check-ups are an important part of a good health regime, especially as we get older. But after you’ve been prodded, probed, sampled and so forth… When did you last have a cognitive health check-up?
Keeping on top of things
In our recent Monday Research Review main feature about citicoline, we noted that it has beneficial effects for a lot of measures of cognitive health.
And that brought us to realize: just how on top of this are we?
Your writer here today could tell you what her sleep was like on any night in the past year, what her heart rate was like, her weight, and all that. Moods too! There’s an app for that. But cognitive health? My last IQ test was in 2001, and I forget when my last memory test was.
It’s important to know how we’re doing, or else how to we know if there has been some decline? We’ve talked previously about the benefits of brain-training of various kinds to improve cognition, so in some parts we’ll draw on the same resources today, but this time the focus is on getting quick measurements that we can retest regularly (mark the calendar!)
Some quick-fire tests
These tests are all free, quick, and accessible. Some of them will try to upsell you on other (i.e. paid) services; we leave that to your own discretion, but the things we’ll be using today are free.
Test your verbal memory
This one’s a random word list generator. It defaults to 12 words, but you can change that if you like. Memorize the words, and then test yourself by seeing how many you can write down from memory. If it gets too easy, crank up the numbers.
Test your visual memory
This one’s a series of images; the test is to click to say whether you’ve seen this exact image previously in the series or not.
Test your IQ
This one’s intended to be general purpose intelligence; in reality, IQ tests have their flaws too, but it’s not a bad metric to keep track of. Just don’t get too hung up on the outcome, and remember, your only competition is yourself!
Test your attention / focus
This writer opened this and this three other attention tests (to get you the best one) before getting distracted, noting the irony, and finally taking the test. Hopefully you can do better!
Test your creativity
This one’s a random object generator. Give yourself a set period of time (per your preference, but make a note of the time you allow yourself, so that you can use the same time period when you retest yourself at a later date) in which to list as many different possible uses for the item.
Test your musical sense
This one’s a pitch recognition test. So, with the caveat that it is partially testing your hearing as well as your cognition, it’s a good one to take and regularly retest in any case.
How often should you retest?
There’s not really any “should” here, but to offer some advice:
- If you take them too often, you might find you get bored of doing so and stop, essentially burning out.
- If you don’t take them regularly, you may forget, lose this list of tests, etc.
- Likely a good “sweet spot” is quarterly or six-monthly, but there’s nothing wrong with testing annually either.
It’s all about the big picture, after all.
Share This Post
-
The Collagen Cure – by Dr. James DiNicolantonio
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
Collagen is vital for, well, most of our bodies, really. Where me most tend to feel its deficiency is in our joints and skin, but it’s critical for bones and many other tissues too.
You may be wondering: why a 572-page book to say what surely must amount to “take collagen, duh”?
Dr. DiNicolantonio has a lot more of value to offer us than that. In this book, we learn about not just collagen synthesis and usage, different types of collagen, the metabolism of it in our diet (if we get it—vegans and vegetarians won’t). We also learn about the building blocks of collagen (vegans and vegetarians do get these, assuming a healthy balanced diet), with a special focus on glycine, the smallest amino acid which makes up about a third of the mass of collagen (a protein).
Not stopping there, we also learn about the interplay of other nutrients with our metabolism of glycine and, if applicable, collagen. Vitamin C and copper are star features, but there’s a lot more going on with other nutrients too, down to the level of “So take this 75 minutes before this but after that and/but definitely not with the other”, etc.
The style is incredibly clear and readable for something that’s also quite scientifically dense (over 1000 references and many diagrams).
Bottom line: if you’re serious about maintaining your body as you get older, and you’d like a book about collagen that’s a lot more helpful than “take collagen, duh”, then this is the book for you.
Click here to check out The Collagen Cure, and take care of yours!
Share This Post
-
Younger For Life – by Dr. Anthony Youn
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
We’ve reviewed anti-aging books before, so what makes this one different? Mostly, it’s the very practical focus.
Which is not to say there’s not also good science in here; there is. But the focus is on what everything means for the reader, not what happened with a certain cohort of lab mice. Instead, he looks at the causes of aging, the process of aging, and what interventions to implement to address those, and reverse many of them.
Some parts are more general lifestyle interventions that 10almonds readers will know well already, but other parts are very specific advices, protocols, and regimes; in particular his skincare section is well worth reading. As for nutrition, there’s even a respectable recipes section, so this book does have it all!
The final section of the book is dedicated to plastic surgeries (the author is a plastic surgeon who believes that most people should not need those, and would do well to stick to the advices in the rest of the book). We suspect this last part of the book will be of least interest to 10almonds readers.
Bottom line: if you’re of the view that getting older should come with as little as possible physical deterioration along the way, then this book can help a lot with that.
Share This Post
Related Posts
-
Green Tea Allergies and Capsules
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
It’s Q&A Day at 10almonds!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small
❝Hey Sheila – As always, your articles are superb !! So, I have a topic that I’d love you guys to discuss: green tea. I used to try + drink it years ago but I always got an allergic reaction to it. So the question I’d like answered is: Will I still get the same allergic reaction if I take the capsules ? Also, because it’s caffeinated, will taking it interfere with iron pills, other vitamins + meds ? I read that the health benefits of the decaffeinated tea/capsules are not as great as the caffeinated. Any info would be greatly appreciated !! Thanks much !!❞
Hi! I’m not Sheila, but I’ll answer this one in the first person as I’ve had a similar issue:
I found long ago that taking any kind of tea (not herbal infusions, but true teas, e.g. green tea, black tea, red tea, etc) on an empty stomach made me want to throw up. The feeling would subside within about half an hour, but I learned it was far better to circumvent it by just not taking tea on an empty stomach.
However! I take an l-theanine supplement when I wake up, to complement my morning coffee, and have never had a problem with that. Of course, my physiology is not your physiology, and this “shouldn’t” be happening to either of us in the first place, so it’s not something there’s a lot of scientific literature about, and we just have to figure out what works for us.
This last Monday I wrote (inspired in part by your query) about l-theanine supplementation, and how it doesn’t require caffeine to unlock its benefits after all, by the way. So that’s that part in order.
I can’t speak for interactions with your other supplements or medications without knowing what they are, but I’m not aware of any known issue, beyond that l-theanine will tend to give a gentler curve to the expression of some neurotransmitters. So, if for example you’re talking anything that affects that (e.g. antidepressants, antipsychotics, ADHD meds, sleepy/wakefulness meds, etc) then checking with your doctor is best.
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
Eat to Live – by Dr. Joel Fuhrman
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
It sure would be great if we could eat all that we wanted, and remain healthy without putting on weight.
That’s the main intent of Dr. Joel Fuhrman’s book, with some caveats:
- His diet plan gives unlimited amounts of some foods, while restricting others
- With a focus on nutrient density, he puts beans and legumes into the “eat as much as you want” category, and grains (including whole grains) into the “restrict” category
This latter is understandable for a weight-loss diet (as the book’s subtitle promises). The question then is: will it be sustainable?
Current scientific consensus holds for “whole grains are good and an important part of diet”. It does seem fair that beans and legumes should be able to replace grains, for grains’ carbohydrates and fiber.
However, now comes the double-edged aspect: beans and legumes contain more protein than grains. So, we’ll feel fuller sooner, and stay fuller for longer. This means we’ll probably lose weight, and keep losing weight. Or at least: losing fat. Muscle mass will stay or go depending on what you’re doing with your muscles.
If you want to keep your body fat percentage at a certain level and not go below it, you may well need to reintroduce grains to your diet, which isn’t something that Dr. Fuhrman covers in this book.
Bottom line: this is a good, science-based approach for healthily losing weight (specifically, fat) and keeping it off. It might be a little too good at this for some people though.
Click here to check out Eat To Live and decide what point you want to stop losing weight at!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
154 million lives saved in 50 years: 5 charts on the global success of vaccines
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
We know vaccines have been a miracle for public health. Now, new research led by the World Health Organization has found vaccines have saved an estimated 154 million lives in the past 50 years from 14 different diseases. Most of these have been children under five, and around two-thirds children under one year old.
In 1974 the World Health Assembly launched the Expanded Programme on Immunization with the goal to vaccinate all children against diphtheria, tetanus, pertussis (whooping cough), measles, polio, tuberculosis and smallpox by 1990. The program was subsequently expanded to include several other diseases.
The modelling, marking 50 years since this program was established, shows a child aged under ten has about a 40% greater chance of living until their next birthday, compared to if we didn’t have vaccines. And these positive effects can be seen well into adult life. A 50-year-old has a 16% greater chance of celebrating their next birthday thanks to vaccines.
What the study did
The researchers developed mathematical and statistical models which took in vaccine coverage data and population numbers from 194 countries for the years 1974–2024. Not all diseases were included (for example smallpox, which was eradicated in 1980, was left out).
The analysis includes vaccines for 14 diseases, with 11 of these included in the Expanded Programme on Immunization. For some countries, additional vaccines such as Japanese encephalitis, meningitis A and yellow fever were included, as these diseases contribute to major disease burden in certain settings.
The models were used to simulate how diseases would have spread from 1974 to now, as vaccines were introduced, for each country and age group, incorporating data on increasing vaccine coverage over time.
Children are the greatest beneficiaries of vaccines
Since 1974, the rates of deaths in children before their first birthday has more than halved. The researchers calculated almost 40% of this reduction is due to vaccines.
The effects have been greatest for children born in the 1980s because of the intensive efforts made globally to reduce the burden of diseases like measles, polio and whooping cough.
Some 60% of the 154 million lives saved would have been lives lost to measles. This is likely due to its ability to spread rapidly. One person with measles can spread the infection to 12–18 people.
The study also found some variation across different parts of the world. For example, vaccination programs have had a much greater impact on the probability of children living longer across low- and middle-income countries and settings with weaker health systems such as the eastern Mediterranean and African regions. These results highlight the important role vaccines play in promoting health equity.
Vaccine success is not assured
Low or declining vaccine coverage can lead to epidemics which can devastate communities and overwhelm health systems.
Notably, the COVID pandemic saw an overall decline in measles vaccine coverage, with 86% of children having received their first dose in 2019 to 83% in 2022. This is concerning because very high levels of vaccination coverage (more than 95%) are required to achieve herd immunity against measles.
In Australia, the coverage for childhood vaccines, including measles, mumps and rubella, has declined compared to before the pandemic.
This study is a reminder of why we need to continue to vaccinate – not just against measles, but against all diseases we have safe and effective vaccines for.
The results of this research don’t tell us the full story about the impact of vaccines. For example, the authors didn’t include data for some vaccines such as COVID and HPV (human papillomavirus). Also, like with all modelling studies, there are some uncertainties, as data was not available for all time periods and countries.
Nonetheless, the results show the success of global vaccination programs over time. If we want to continue to see lives saved, we need to keep investing in vaccination locally, regionally and globally.
Meru Sheel, Associate Professor and Epidemiologist, Infectious Diseases, Immunisation and Emergencies Group, Sydney School of Public Health, University of Sydney and Alexandra Hogan, Mathematical epidemiologist, UNSW Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails: