Salt Intake and Stroke

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Vol. 2 No. 3 (2025)

Date Log

Submitted
July 17, 2025
Published
July 19, 2025

Salt Substitute and Stroke Study (ssass)

Talk of the Town in Scientific Research: Key Points on Why Salt Substitutes Can Be a Better Alternative to Traditional Salt in Preventing Stroke Recurrence
https://doi.org/10.69512/ajphi.v2i3.134
Aakash Acharya, MD
Centinela Hospital Medical Center, Los Angeles, CA, USA
https://orcid.org/0000-0002-7759-7883

Corresponding Author(s) : Aakash Acharya, MD

draakashacharya@gmail.com

The American Journal of Patient Health Info, Vol. 2 No. 3 (2025)

Abstract

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Keywords

Salt Substitutes Salt Intake and Stroke Salt and Health Salt Alternatives
Acharya, MD, A. (2025). Salt Substitute and Stroke Study (ssass): Talk of the Town in Scientific Research: Key Points on Why Salt Substitutes Can Be a Better Alternative to Traditional Salt in Preventing Stroke Recurrence. The American Journal of Patient Health Info, 2(3). https://doi.org/10.69512/ajphi.v2i3.134
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References
  1. McManus M, Liebeskind DS. Blood Pressure in Acute Ischemic Stroke. Journal of Clinical Neurology. 2016;12(2):137. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC4828558/
  2. Strazzullo P, Abate V. SODIUM. Advances in Nutrition. 2025 Mar 1;100409–9. Available from: https://pubmed.ncbi.nlm.nih.gov/40086509/
  3. Anderer S. Salt Substitute Cuts Risk of Recurrent Stroke, Death. JAMA. 2025 Mar 7; Available from: https://jamanetwork.com/journals/jama/fullarticle/2831349
  4. Ding X, Zhang X, Huang L, Xiong S, Li Z, Zhao Y, et al. Salt Substitution and Recurrent Stroke and Death: A Randomized Clinical Trial. JAMA cardiology [Internet]k. 2025 May;e245417. Available from: https://pubmed.ncbi.nlm.nih.gov/39908026/
  5. Neal B, Wu Y, Feng X, Zhang R, Zhang Y, Shi J, et al. Effect of Salt Substitution on Cardiovascular Events and Death. New England Journal of Medicine. 2021 Aug 29;385(12). Available from: https://www.nejm.org/doi/full/10.1056/nejmoa2105675
  6. This salt alternative could help reduce blood pressure. So why are so few people using it? [Internet]. UNSW Sites. 2024. Available from: https://www.unsw.edu.au/newsroom/news/2024/01/this-salt-alternative-could-help-reduce-blood-pressure--so-why-a
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Aakash Acharyaa

a Centinela Hospital Medical Center, Los Angeles, CA , USA

The Salty Link to Stroke: A Hidden Threat on Your Plate

Salt- it’s in almost every bite we eat. But behind its familiar taste lies a dangerous connection. High blood pressure is present in 84% of all stroke cases, and one major reason is excess salt. It is to be noted that just a slight increase in salt intake can raise systolic blood pressure by 5 to 10 mmHg. [1]

Despite decades of warnings, the average American still consumes around 3,600 mg of sodium per day which is more than double the 1,500 mg recommended by the American Heart Association. But why? It is because salt is addictive. It enhances taste, provides comfort, and keeps us coming back for more. [2]

But here is a game-changer: salt substitutes. These alternatives are now being explored as effective tools in reducing stroke risk. [3] The Salt Substitute and Stroke Study (SSaSS) trial offers strong evidence that a simple switch may hold life-saving potential. [4]

Salt Substitutes: The Smart Swap Your Body Might Thank You For

Salt substitutes are designed to mimic the taste of regular table salt (sodium chloride), but they contain little to no sodium. [5] Instead, they use minerals that are safer for your heart. Some of the most common substitutes include:

  • Potassium chloride
  • Magnesium sulfate
  • Calcium chloride
  • Herb and spice blends

These options not only help in lowering sodium intake, but they also add beneficial minerals to your diet; without sacrificing flavor.

The SSaSS Trial: A Study That Could Shift Stroke Prevention Strategies

A recent breakthrough came from the SSaSS trial, a study published in Journal of the American Medical Association (JAMA) Cardiology. It followed 15249 stroke survivors in Northern China for five years. The aim was to test whether salt substitutes could prevent stroke recurrence. [4]

Here’s what they found:

  • Stroke recurrence was 17% in the salt substitute group vs. 19% in the regular salt group. [4]
  • Deaths were 20% in the salt substitute group vs. 22% with regular salt. [4]

A small difference, it may seem. But in public health, small percentages save lives.

And here's the twist - even though the salt substitute used contained 25% potassium chloride, it did not increase the risk of hyperkalemia (high potassium levels). This finding could pave the way for safer blood pressure management, especially for stroke patients. [4]

The Bitter Truth: Not Everyone Likes the Taste of a Better Option

If salt substitutes are so beneficial, why aren’t we all using them? The answer lies in taste and cost. Salt substitutes can leave a bitter or metallic aftertaste, which some people find unpleasant. They’re also more expensive than regular salt. [6] And for certain patients, especially those with chronic illnesses or on potassium-containing medications like losartan, salt substitutes may pose a health risk. So, it’s not one-size-fits-all.

Caution Ahead: Study Limitations You Should Know

The SSaSS trial offers hope, but it’s not without limits. [4]

  • It was an open-label, randomized trial done in rural China, where salt use comes mostly from home-cooked meals — unlike developed countries, where processed foods are the main source of salt.
  • The study focused on patients aged 60 and above with cardiovascular risk.
  • It excluded people with chronic kidney disease.
  • Potassium levels were not routinely monitored, and the trial used only one formula of salt substitute: 75% sodium chloride + 25% potassium chloride.

So while the results are promising, they may not apply globally. [4]

The Final Word: Small Switch, Big Impact

For people who struggle to stick to a low-salt diet, salt substitutes offer a practical and potentially life-saving alternative. According to studies, these substitutes are linked to:

  • 14% reduction in stroke risk
  • 13% reduction in major cardiovascular events
  • 12% lower risk of death

The risk of high potassium levels remains low, as long as kidney function is normal and the person isn't on potassium-based medication. [4,5]

In short - a small change in your salt shaker could make a huge difference in your health.

Conflict of Interest

The authors have no conflict of interest to declare.

Peer-Reviewed By

Bibhusan Basnet, MD

Department of Hospital Medicine, Frye Regional Medical Center, Hickory, NC, USA

References

  1. McManus M, Liebeskind DS. Blood Pressure in Acute Ischemic Stroke. Journal of Clinical Neurology. 2016;12(2):137. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC4828558/
  2. Strazzullo P, Abate V. SODIUM. Advances in Nutrition. 2025 Mar 1;100409–9. Available from: https://pubmed.ncbi.nlm.nih.gov/40086509/
  3. Anderer S. Salt Substitute Cuts Risk of Recurrent Stroke, Death. JAMA. 2025 Mar 7; Available from: https://jamanetwork.com/journals/jama/fullarticle/2831349
  4. Ding X, Zhang X, Huang L, Xiong S, Li Z, Zhao Y, et al. Salt Substitution and Recurrent Stroke and Death: A Randomized Clinical Trial. JAMA cardiology [Internet]k. 2025 May;e245417. Available from:https://pubmed.ncbi.nlm.nih.gov/39908026/
  5. Neal B, Wu Y, Feng X, Zhang R, Zhang Y, Shi J, et al. Effect of Salt Substitution on Cardiovascular Events and Death. New England Journal of Medicine. 2021 Aug 29;385(12). Available from: https://www.nejm.org/doi/full/10.1056/nejmoa2105675
  6. This salt alternative could help reduce blood pressure. So why are so few people using it? [Internet]. UNSW Sites. 2024. Available from:https://www.unsw.edu.au/newsroom/news/2024/01/this-salt-alternative-could-help-reduce-blood-pressure--so-why-a

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