Dia-t contains Gymnema Sylvestre, a herb used in Siddha and Ayurveda systems for treating diabetes. It includes gymnemic acids that have anti-sweetener, anti-diabetic and anti-inflammatory activities. It helps regulate blood glucose levels, prevent adrenaline from stimulating the liver to produce glucose, lower serum (blood) cholesterol and triglycerides lowering the risk of heart disease, and also is very effective in controlling obesity.