Fecal fat

Fecal fat refers to the amount of fat excreted in the feces. This measurement is an important diagnostic tool used in the assessment of malabsorption syndromes, where the body is unable to properly absorb nutrients from the digestive system. The fecal fat test, also known as the quantitative stool fat test, measures the amount of fat to help diagnose these conditions.

Overview

The digestion and absorption of fats primarily occur in the small intestine, with the aid of enzymes from the pancreas and bile from the liver. When there is a malfunction in any part of this process, it can lead to malabsorption. Conditions such as Cystic Fibrosis, Chronic Pancreatitis, Celiac Disease, and diseases affecting the liver and bile ducts can impair the body's ability to process and absorb fats, leading to increased levels of fat in the stool.

Symptoms of Malabsorption

Individuals with malabsorption may experience a range of symptoms including:

• Diarrhea
• Weight loss
• Abdominal bloating and gas
• Foul-smelling stools that may appear oily or greasy

Fecal Fat Test

The fecal fat test involves collecting stool samples over a 72-hour period while the patient follows a diet with a specified amount of fat. The collected samples are then analyzed in a laboratory to measure the amount of fat that was not absorbed by the body.

Interpretation of Results

Normal fecal fat values typically range from 2 to 7 grams per day for adults consuming a diet with a normal amount of fat. Values significantly higher than this range may indicate a malabsorption disorder. However, the interpretation of results should always be done by a healthcare professional, considering the patient's overall health and other diagnostic tests.

Treatment

Treatment for high fecal fat levels depends on the underlying cause of the malabsorption. Dietary adjustments, enzyme supplements, and medications to treat the specific condition causing malabsorption may be recommended.

See Also

• Digestive System
• Malabsorption Syndromes
• Cystic Fibrosis
• Chronic Pancreatitis
• Celiac Disease