Certain healthy antioxidants found in tea and cocoa actually trick the body into a state of high stress fight or flight.
April 23, 2026
Original Paper
B-ring Reactivity of Flavanols Dictates Sympathetic Activation via Gastrointestinal Pro-oxidant Mechanisms
SSRN · 6619356
The Takeaway
Flavanols like epicatechin are usually praised for their health benefits, but they act as pro oxidants once they hit the gut. This chemical reaction triggers a stress response that hyperactivates the sympathetic nervous system throughout the entire body. Instead of calming the system, these compounds simulate a mild threat that keeps the internal organs on high alert. The molecular structure of what we eat can override its reputation as a health supplement.
From the abstract
The B-ring hydroxyl groups of flavanols significantly influence their redox properties; however, their behavior in the gastrointestinal environment remains poorly understood. This study evaluated the stability and O2• − reactivity of (+)-catechin (CA), (-)-epicatechin (EC), which possess a catechol skeleton, epigallocatechin (EGC), which has a pyrogallol structure, and dimethylepicatechin (MeEC) under neutral pH conditions mimicking the oral and intestinal environments. Molecular dynamics (MD) s