Erythritol and heart health: what we know so far
Erythritol has become one of the most recognizable sugar substitutes in “sugar-free” and “low-calorie” products. Its popularity comes from the fact that it provides sweetness with very few calories and generally does not raise blood glucose in the same way as regular sugar. Because of that, it often appeals to people trying to manage weight, reduce sugar intake, or make more blood-sugar-conscious food choices.[5]
In recent years, however, erythritol has also drawn attention for a possible link to cardiovascular health. Researchers supported by the NIH and NHLBI reported that higher blood levels of erythritol were associated with a greater risk of heart attack, stroke, and other cardiovascular events in certain populations, although that alone does not prove erythritol directly caused those outcomes.[1][2][3]
What is erythritol?
Erythritol is a sugar alcohol found naturally in small amounts in some fruits and fermented foods. It is also manufactured for use as a sweetener. It is valued because it delivers sweetness with a very low calorie load and is commonly used as an alternative to sugar by people who want to lower carbohydrate intake or avoid large rises in blood glucose.[5]
Unlike table sugar, erythritol does not affect glucose metabolism in the same way. That helps explain why it appears so often in foods marketed to people with diabetes or in eating patterns that aim for a lower glycemic impact. Even so, being an alternative to sugar does not automatically mean it is free of questions about long-term health effects.[1][3]
Potential benefits of erythritol
Several factors help explain why erythritol became so popular:
- Very low calorie content, which may help reduce overall sugar intake.
- Lower impact on blood glucose compared with added sugars.[5]
- Frequent use in strategies to cut back on sugar within a more balanced diet.
These points show why many people view it as a practical option. Still, its value depends on the broader dietary context. Replacing sugar with a sweetener does not by itself offset other major factors involved in heart health, such as overall diet quality, exercise, sleep, and management of other cardiovascular risks.
Why is erythritol under scrutiny for heart health?
Much of the current concern comes from a 2023 study showing that people with higher erythritol levels in their blood had a higher likelihood of major cardiovascular events, including heart attack and stroke.[2] The NIH summarized these findings as an important observational association, particularly in people who were already at higher cardiovascular risk.[1]
The NHLBI also emphasized that these results justify more research before drawing broad conclusions for the general population.[3] In other words, the finding matters, but it should not be simplified into a claim that any erythritol intake causes heart disease.
In 2024, another study in healthy volunteers found that ingesting erythritol, but not glucose, increased platelet reactivity and thrombosis potential in the short term. That provides a possible biological mechanism worth further investigation in relation to cardiovascular events.[4] This type of study does not fully settle the real-world risk question, but it does strengthen the case for caution and continued scientific follow-up.
Risks and limitations to keep in mind
Although erythritol is often described as generally well tolerated, some people may experience digestive discomfort when they consume larger amounts, including bloating, gas, or diarrhea. This practical issue was recognized even before the cardiovascular debate gained attention.
What matters most now is understanding that the heart-health evidence is still developing. The available research raises reasonable concerns, especially for people with existing risk factors, but it does not yet provide one definitive answer for every consumer.[1][3][4]
That is why it helps to avoid two extremes: assuming erythritol is completely harmless in any amount, or claiming it has been definitively proven to cause heart attacks in everyone who uses it. Neither view accurately reflects the current evidence.
How to interpret this information in practice
If you consume products with erythritol, the most sensible approach is to view it as one part of your overall eating pattern. A few practical ideas include:
- Favor moderation instead of relying daily on large amounts of highly sweetened products.
- Read labels to see when erythritol is a main ingredient.
- Avoid overly simple conclusions: reducing added sugar may help, but not all sugar substitutes behave the same way.[5]
- Talk with a healthcare professional if you have a history of cardiovascular disease, diabetes, or other risk factors and want guidance on your eating habits.
It is also worth remembering that heart health depends on a combination of long-term habits. No single ingredient fully explains cardiovascular risk, but some ingredients may matter more than previously thought when consumed regularly or in certain clinical contexts.[1][3]
Conclusion
Erythritol remains a widely used sugar substitute because of its very low calorie content and limited effect on blood glucose.[5] At the same time, recent studies have linked it to a higher likelihood of cardiovascular events and to biological changes related to clotting, raising important questions about its cardiovascular safety.[1][2][4]
The best way to interpret the evidence is with balance: neither excessive alarm nor blind confidence. As research continues, it should become clearer who may need to be more cautious. In the meantime, a varied eating pattern with less added sugar and a focus on sustainable habits remains a stronger strategy than depending on any sweetener as a main solution.
Sources consulted
- [1] Erythritol and cardiovascular events. National Institutes of Health. URL: https://www.nih.gov/news-events/nih-research-matters/erythritol-cardiovascular-events
- [2] The artificial sweetener erythritol and cardiovascular event risk. PubMed. URL: https://pubmed.ncbi.nlm.nih.gov/36849732/
- [3] Common type of artificial sweetener linked to increased risk of heart attack and stroke. NHLBI, NIH. URL: https://www.nhlbi.nih.gov/news/2023/common-type-artificial-sweetener-linked-increased-risk-heart-attack-and-stroke
- [4] Ingestion of the Non-Nutritive Sweetener Erythritol, but Not Glucose, Enhances Platelet Reactivity and Thrombosis Potential in Healthy Volunteers. PubMed. URL: https://pubmed.ncbi.nlm.nih.gov/39114916/
- [5] Choosing Healthy Carbs. CDC. URL: https://www.cdc.gov/diabetes/healthy-eating/choosing-healthy-carbs.html