Home / Blood Tests / Stool Reducing Substances

Stool Reducing Substances

Stool Reducing Substances (SRS) Test – Detecting Carbohydrate Malabsorption in Slough

What Are Stool Reducing Substances?
Stool reducing substances (SRS) refer to unabsorbed carbohydrates found in the feces, commonly including glucose, lactose, fructose, galactose, and sucrose. Their presence suggests that certain sugars are not being fully absorbed by the digestive system.

Conditions Associated with SRS in Stool
Elevated SRS levels may indicate gastrointestinal disorders such as:

Lactose intolerance

Carbohydrate intolerance

Malabsorption syndromes

These conditions impair the body’s ability to digest and absorb sugars, often resulting in symptoms like abdominal bloating, diarrhea, and cramping.

How the Test Works
A stool sample is collected and mixed with a specific chemical reagent. A colour change in the mixture indicates the presence of reducing sugars. In some cases, quantitative testing may also be performed to determine the exact level of SRS present.

Why Further Testing May Be Required
While the detection of reducing substances can support the diagnosis of malabsorption, it is not conclusive on its own. Additional diagnostic tests are often necessary to identify the specific underlying cause.

Gastrointestinal Health Testing in Slough and Surrounding Areas
If you are experiencing symptoms like persistent diarrhea or abdominal discomfort, SRS testing is available at clinics throughout Slough, Windsor, Langley, and Maidenhead. Early diagnosis ensures timely dietary management and improved digestive health.

There is an additional £25 phlebotomy fee for every donation.