Popular Sweetener Erythritol Linked to Brain Vessel Damage

UBUNTU VILLAGE · BODY WISDOM · WHAT WE SWALLOW, WE INHERIT

“Our grandmothers trusted food they could name and pronounce — sugar, honey, salt — because they understood that the body remembers everything it is fed, long after the sweetness is gone. Science is only now catching up to what instinct always suspected: what we swallow does not disappear. It becomes part of the story our cells tell next.”

Erythritol has become a popular sugar substitute thanks to its low-calorie content and minimal impact on blood sugar levels. Often found in “keto” products, protein bars, and diabetic-friendly treats, it provides a sweet taste without the calorie load of traditional sugar. Erythritol is naturally present in some fruits and is also produced in small amounts by our bodies. Its appeal lies in being approximately 60–80% as sweet as regular sugar, while contributing nearly zero calories, making it a go-to option for those looking to reduce their sugar intake.

A close-up of sugar substitute packets and a coffee cup, representing the debate over erythritol and cardiovascular health

Introduction to Erythritol

Despite its appeal, recent research has raised real concern about what erythritol may be doing to the body’s cardiovascular system — concern serious enough that scientists and health experts are now looking closer. It is gentler on digestion than other sugar alcohols, yes. But gentleness in one place does not guarantee safety everywhere, and understanding its full relationship with our bodies matters more than convenience.

As it works its way into more of what lines our shelves, we owe ourselves the same care our grandmothers brought to reading a label they didn’t recognize. As more studies emerge, staying informed becomes part of how we protect the body — not out of fear, but out of respect for what we choose to swallow.

University of Colorado Study Findings

A study out of the University of Colorado Boulder surfaced something researchers weren’t even looking for. They set out searching for unknown blood chemicals that might predict heart attacks, strokes, or death — and found erythritol standing in the middle of that search, tied to concerning changes in brain blood vessel cells. The study, published in Nature Medicine, showed that exposure to erythritol can lead to significant oxidative stress, a drop in nitric oxide levels, increased production of endothelin-1, and a reduced release of the clot-dissolving enzyme t-PA. 

These effects collectively contribute to a higher risk of blood clot formation, which could potentially result in serious health events like strokes or heart attacks. Interestingly, although the total amount of the enzyme eNOS, which is vital for producing nitric oxide, remains constant, its activation is reduced, and its inhibition is increased, thereby worsening nitric oxide function.

Understanding the Impact on Health

The body keeps a record. Higher erythritol levels in the blood track with a greater risk of heart issues and strokes — a real concern for anyone reaching for it as a safer sweetener, concerns explored further in how erythritol may harm your heart and brain cells. When erythritol intake results in increased blood clot formation, the likelihood of heart problems, including attacks or strokes, rises. These findings are consistent with previous studies that have shown a correlation between elevated blood erythritol levels and an increased incidence of heart-related conditions, regardless of traditional risk factors.

Erythritol vs. Traditional Sugar

Erythritol is highly appealing for its ability to provide sweetness without the calories of traditional sugar. Often well-tolerated (better tolerated than other sugar alcohols, with fewer gastrointestinal side effects such as nausea, abdominal bloating, and diarrhea). Its impact on blood sugar levels is negligible, making it a supposedly suitable option for individuals managing diabetes.

As erythritol becomes more popular, its production and usage are expected to increase. Some estimates suggest that future consumption could reach significant levels (production and consumer use are expected to increase, with estimated future per capita intake potentially reaching 32 g/day). However, as appealing as erythritol is for those looking to reduce sugar intake, the potential health risks, particularly concerning cardiovascular health, must be carefully considered.

A calorie-free sweetener that may be quietly taxing the heart is not a trade any of us should make blindly. Its benefits and its newly discovered risks both deserve honest weighing, not a marketing claim taken on faith. This is part of a larger inheritance we’re only beginning to understand — how the diets that pass through generations, and the substances our modern food system introduces, both leave their signature on the body. That inheritance is explored further in the science of epigenetics and ancestral memory.

Limitations of the Current Study

The University of Colorado study offers real insight, and real insight always comes with edges — it’s worth naming where this one’s edges are. Being a cell-culture-based study, the findings are preliminary and may not fully reflect real-world scenarios. Experts have called for more extensive research into the long-term effects of erythritol, as its rapid increase in popularity necessitates a deeper understanding of its health implications. This means that while the initial results are concerning, they should be interpreted with caution until further studies are conducted.

Another limitation is the study’s acute nature. The researchers observed the effects of erythritol on brain blood vessel cells over a short period of time. Long-term studies involving both animals and humans are necessary to determine whether habitual consumption of erythritol poses a real threat to cardiovascular health. There is an urgency to explore erythritol’s impact further due to its widespread availability, as stated by experts in the field.

The study does not account for individual variations in metabolism and overall health. People’s responses to erythritol can vary based on factors such as age, genetic makeup, existing health conditions, and the presence of other dietary elements. These variables underscore the need for personalized research to gain a deeper understanding of how erythritol affects different population groups.

It’s also worth noting that this study was conducted in a controlled laboratory setting, which does not capture the complexities of human diets and lifestyle factors. Real-world conditions involve a mix of various foods, stress levels, physical activities, and other environmental factors that could influence the outcome. This highlights the importance of conducting comprehensive research that more closely mimics everyday life.

Given all of this, caution is the wiser posture until the research catches up to the sweetener’s popularity. What we don’t yet know deserves the same respect as what we do.

Practical Advice for Consumers

Caution here isn’t alarm — it’s the same discernment our elders used with anything new on the table. Dr. Andrew Freeman advises limiting erythritol intake until more definitive research is available, particularly for individuals at risk of clotting, heart attacks, or strokes. Those with pre-existing cardiac conditions or diabetes should be especially mindful. Dr. Stanley Hazen suggests that these individuals should avoid erythritol until further studies are conducted.

In the meantime, staying updated with the latest research is crucial. Consumers might consider exploring other natural sweeteners like stevia or monk fruit, which also offer low-calorie alternatives but with different risk profiles. Another viable approach is to reduce the overall intake of sweeteners, aiming for a diet with fewer added sugars.

When reading product labels, be vigilant about the presence of erythritol, especially in “keto” products, protein bars, and diabetic-friendly treats. These items might seem like healthier options, but could pose risks if consumed in large amounts.

Balancing your diet with whole foods like fruits, vegetables, whole grains, and lean proteins can help minimize the need for added sweeteners. This approach not only supports overall health but also reduces the potential risks associated with high erythritol consumption.

In the end, an informed choice is a form of self-respect — staying close to the science, consulting the healers and doctors in your life, and letting mindfulness guide what reaches your plate.

Conclusion and Future Research Directions

What began as a search for something else has left us with a sweetener under new scrutiny — sweet on the tongue, but possibly costly to the vessels that carry our blood and our breath. The link between higher erythritol levels and greater risk of heart attack and stroke is not a small thing to set aside.

The research is still young, and young research asks for patience rather than panic. Long-term study, in both animals and in the fuller complexity of human life, will tell us what habitual use of this sweetener really costs the body over time.

Dr. Stanley Hazen puts the risk plainly: comparable to major cardiac risk factors like diabetes. That is not a footnote. It is a reason to keep watching, keep asking, and keep choosing with care.


Related Reading

Community is the medicine.

Your donation helps Ubuntu Village continue bringing community-centered health research to the people who need it most.

Donate

Michele Mitchell

Michele Mitchell is the Founder, President & CEO of Ubuntu Village Inc., a 501(c)(3) nonprofit with programs in Kenya, Uganda, and Nigeria. A writer, advocate, and community strategist working at the intersection of ancestral wisdom, public health, and community power, Michele leads Ubuntu Village’s work to center communities as the protagonists of their own healing. She writes from the conviction that science and spirit are complementary, that healing is relational, and that community is the medicine. Read more about Michele, or connect with her on LinkedIn.


Discover more from Ubuntu Village

Subscribe to get the latest posts sent to your email.

Discover more from Ubuntu Village

Subscribe now to keep reading and get access to the full archive.

Continue reading