A Stool Reducing Substance test is a diagnostic tool primarily used to detect sugar malabsorption, most commonly Lactose Intolerance.
When the body cannot properly digest certain sugars (like lactose, fructose, or galactose) in the small intestine, these “reducing substances” travel to the large intestine. There, bacteria ferment them, producing acid and gas, which are then passed in the stool.
₹180.00