Common Sweetener May Damage Critical Brain Barrier, Raising Stroke Risk

Why Erythritol Is So Widely Used

Erythritol occupies a unique position among sweeteners. Unlike artificial sweeteners such as aspartame or sucralose, it is a sugar alcohol that occurs naturally in small amounts in the body.

Because of this classification, erythritol was not included in recent World Health Organization guidelines discouraging artificial sweeteners for weight control.

Food manufacturers also favor erythritol because it closely mimics sugar’s taste and texture. While sucralose is hundreds of times sweeter than sugar, erythritol provides about 80% of sugar’s sweetness, making it easier to use in recipes without overpowering flavor.

As a result, it is now found in thousands of “sugar-free” and “keto-friendly” products.


Weighing the Trade-Offs

Regulatory agencies such as the US Food and Drug Administration and the European Food Safety Authority have approved erythritol as safe for consumption. However, this growing body of research suggests that even naturally derived sugar alternatives may carry unforeseen health risks.

For consumers, the findings raise important questions. Sweeteners like erythritol can help reduce calorie intake and manage blood sugar levels, particularly for people with diabetes. Yet if frequent consumption weakens the blood–brain barrier or increases cardiovascular risk, those benefits may come at a cost.


The Bigger Picture

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