Is potassium metabisulfite in red wine harmful to the human body?
Nov 27, 2022
Source: Cainiu Health
Dr. Yang Shuwen
Introduction
Potassium metabisulfite in red wine is generally harmless to humans. The amount of potassium metabisulfite in red wine, when within legal limits, poses no health risks. Potassium metabisulfite, also known as potassium pyrosulfite, is the most commonly used additive in red wine, serving to disinfect and act as an antioxidant. It dissolves in water to release sulfur dioxide, which is rich in sulfur and can react with oxidizing agents present in alcohol.
Potassium metabisulfite in red wine is generally not harmful to the human body. When the amount of potassium metabisulfite in red wine does not exceed safety limits, it poses no harm to health.
Potassium metabisulfite is the most commonly used additive in red wine, serving to disinfect and prevent oxidation. Also known as potassium pyrosulfite, it dissolves in water to release sulfur dioxide, which is rich in sulfur and can react with oxidizing substances in alcohol, thereby preventing parts of the wine from being oxidized. After the reaction, potassium metabisulfite forms trace amounts of sulfate compounds, which are essentially harmless to humans. Although sulfur dioxide produced by potassium metabisulfite can be harmful in high concentrations, the amount added to wine is minimal and therefore does not threaten human health.
It is recommended that individuals consume red wine in moderation to avoid physical discomfort. After drinking red wine, avoid consuming strong tea to counteract intoxication, as the theophylline in tea may constrict blood vessels and raise blood pressure, potentially worsening headaches.
