Stool Reducing Substance

The Stool Reducing Substance test is a laboratory test used to detect the presence of unabsorbed sugars (reducing substances) in stool. It is commonly used to evaluate carbohydrate malabsorption, particularly in infants and young children.

Normally, sugars are digested and absorbed in the intestine. When absorption is impaired, sugars remain in the stool, which can lead to symptoms such as diarrhea, bloating, and abdominal discomfort.

This test is useful in diagnosing conditions like lactose intolerance, intestinal infections, or enzyme deficiencies. It is often performed along with stool pH and other stool tests for comprehensive evaluation.

The purpose of this test is to

• To detect reducing sugars in stool
• To assess carbohydrate malabsorption
• To help diagnose lactose intolerance
• To evaluate digestive disorders
• To support pediatric gastrointestinal assessment