New research from the University of Colorado Boulder found that erythritol — the sugar substitute in thousands of keto and sugar-free products — causes human brain blood vessel cells to produce 60% less nitric oxide, spike vessel-constricting compounds, lose clot-breaking ability, and flood with free radicals, all after just one serving's worth of exposure. A prior Cleveland Clinic study of 4,000 people linked higher erythritol blood levels to significantly elevated heart attack and stroke risk within three years. If you're stacking these products daily, the exposure compounds.
# [Hook Headlines]
# HEADLINE 1: The 'Sugar-Free' Sweetener in Your Protein Bar — Shown to Damage Brain Blood Vessels
# HEADLINE 2: One Sugar-Free Drink's Worth of Erythritol Cuts Nitric Oxide by 60% — New Study
# HEADLINE 3: Keto Staple Erythritol Linked to Stroke Risk — Here's the Science Your Label Doesn't Show
# [Hook & Introduction]
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