Acetic acid, the active compound in vinegar, helps manage blood sugar and improve insulin sensitivity after meals, especially ones high in carbohydrates.
People often take it as diluted vinegar, like apple cider vinegar. A typical dose is 1-2 teaspoons (5-10 ml) mixed in water, taken before or with meals.
Acetic acid can strengthen the blood sugar-lowering effects of diabetes medications like insulin, sulfonylureas, or metformin, which may lead to low blood sugar. Its acidity can also worsen GERD, stomach ulcers, or other acid-sensitive problems. Always dilute it to protect tooth enamel.