13/11/2025
As Iridologists, we often see how lifestyle choices leave their imprint long before symptoms appear.
Recent research suggests that erythritol, a common “sugar-free” sweetener found in energy drinks and protein bars, may do more than satisfy a sweet tooth — it could be quietly undermining the blood–brain barrier and vascular integrity.
The study found erythritol triggered oxidative stress, reduced nitric oxide, and increased endothelin-1 — shifting the vessel tone toward constriction and potentially raising the risk of stroke and cardiovascular events.
These findings align with what many of us observe through the lens of Iridology: when the body’s natural chemistry is constantly challenged by synthetic inputs, its compensatory systems show the strain.
The iris doesn’t lie — and neither does the body’s innate intelligence.
Perhaps it’s time to look beyond “sugar-free” and consider what truly supports systemic balance and vitality.
Source: Journal of Applied Physiology 2025 138:6, 1571-1577