Home Heart Health Common Artificial Sweeteners Linked to Higher Rates of Heart Attack and Stroke

Common Artificial Sweeteners Linked to Higher Rates of Heart Attack and Stroke

written by Vidya Sury April 20, 2023
Artificial sweeteners - are they safe

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New research from global health system Cleveland Clinic that erythritol, one of the popular artificial sweeteners, is associated with an increased risk of heart attack and stroke. Findings were published this week in Nature Medicine.

Researchers studied over 4,000 people in the U.S. and Europe and found those with higher blood erythritol levels were at elevated risk of experiencing a major adverse cardiac event such as heart attack, stroke, or death.

They also examined the effects of adding erythritol to either whole blood or isolated platelets, which are cell fragments that clump together to stop bleeding and contribute to blood clots. Results revealed that erythritol made platelets easier to activate and form a clot. Pre-clinical studies confirmed ingestion of erythritol heightened clot formation.

To quote senior author Stanley Hazen, M.D., Ph.D., chairman for the Department of Cardiovascular & Metabolic Sciences in Lerner Research Institute and co-section head of Preventive Cardiology at Cleveland Clinic,

“Sweeteners like erythritol, have rapidly increased in popularity in recent years but there needs to be more in-depth research into their long-term effects. Cardiovascular disease builds over time, and heart disease is the leading cause of death globally. We need to make sure the foods we eat aren’t hidden contributors.”

Artificial sweeteners, such as erythritol, are common replacements for table sugar in low-calorie, low-carbohydrate, and “keto” products.

Sugar-free products containing erythritol are often recommended for people who have obesity, diabetes or metabolic syndrome and are looking for options to help manage their sugar or calorie intake.

People with these conditions also are at higher risk for adverse cardiovascular events like heart attack and stroke.

How Erythritol works

Erythritol is about 70% as sweet as sugar and is produced through fermenting corn. After ingestion, erythritol is poorly metabolized by the body. Instead, it goes into the bloodstream and leaves the body mainly through urine. The human body creates low amounts of erythritol naturally, so any additional consumption can accumulate.

Measuring artificial sweeteners is difficult and labeling requirements are minimal and often do not list individual compounds. Erythritol is “Generally Recognized As Safe (GRAS)” by the U.S. Food and Drug Administration (FDA), which means there is no requirement for long-term safety studies.

The authors note the importance of follow-up studies to confirm their findings in the general population. The study had several limitations, including that clinical observation studies demonstrate association and not causation.

Dr. Hazen says,

“Our study shows that when participants consumed an artificially sweetened beverage with an amount of erythritol found in many processed foods, markedly elevated levels in the blood are observed for days – levels well above those observed to enhance clotting risks.


It is important that further safety studies are conducted to examine the long-term effects of artificial sweeteners in general, and erythritol specifically, on risks for heart attack and stroke, particularly in people at higher risk for cardiovascular disease.”

Authors recommend talking to your doctor or a certified dietician to learn more about healthy food choices and for personalized recommendations.

Further studies about artificial sweeteners

A study titled Artificial Sweeteners and Risk of Cardiovascular Diseases concludes the following:

The findings from this large-scale prospective cohort study suggest a potential direct association between higher artificial sweetener consumption (especially aspartame, acesulfame potassium, and sucralose) and increased cardiovascular disease risk.


Artificial sweeteners are present in thousands of food and beverage brands worldwide, however they remain a controversial topic and are currently being re-evaluated by the European Food Safety Authority, the World Health Organization, and other health agencies.

Debras C, Chazelas E, Sellem L, Porcher R, Druesne-Pecollo N, Esseddik Y, de Edelenyi FS, Agaësse C, De Sa A, Lutchia R, Fezeu LK, Julia C, Kesse-Guyot E, Allès B, Galan P, Hercberg S, Deschasaux-Tanguy M, Huybrechts I, Srour B, Touvier M. Artificial sweeteners and risk of cardiovascular diseases: results from the prospective NutriNet-Santé cohort. BMJ. 2022 Sep 7;378:e071204. doi: 10.1136/bmj-2022-071204. PMID: 36638072; PMCID: PMC9449855.

Another study titled Is the Use of Artificial Sweeteners Beneficial for Patients with Diabetes Mellitus? The Advantages and Disadvantages of Artificial Sweeteners states the following:

Artificial sweeteners have been developed as substitutes for sugar. Sucralose, acesulfame K (ACE K), aspartame, and saccharin are artificial sweeteners. Previously, artificial sweeteners were thought to be effective in treating obesity and diabetes. Human meta-analyses have reported that artificial sweeteners have no effect on body weight or glycemic control.


However, recent studies have shown that artificial sweeteners affect glucose absorption in the intestinal tract as well as insulin and incretin secretion in humans and animals. Moreover, artificial sweeteners alter the composition of the microbiota and worsen the glycemic control owing to changes in the gut microbiota.


The early intake of ACE K was also shown to suppress the taste response to sugar. Furthermore, a large cohort study showed that high artificial sweetener intake was associated with all-cause mortality, cardiovascular risk, coronary artery disease risk, cerebrovascular risk, and cancer risk.


The role of artificial sweeteners in the treatment of diabetes and obesity should be reconsidered, and the replacement of sugar with artificial sweeteners in patients will require the long-term tracking of not only intake but also changes in blood glucose and weight as well as future guidance based on gut bacteria data. To utilize the beneficial properties of artificial sweeteners in treatment, further studies are needed.

Iizuka K. Is the Use of Artificial Sweeteners Beneficial for Patients with Diabetes Mellitus? The Advantages and Disadvantages of Artificial Sweeteners. Nutrients. 2022 Oct 22;14(21):4446. doi: 10.3390/nu14214446. PMID: 36364710; PMCID: PMC9655943.

Bottomline on artificial sweeteners

Please consult your physician before you switch to any kind of artificial sweeteners. They mess with the gut biome.

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