Description
Detect Sucrose Malabsorption | Shipping Nationwide
Overview
The Sucrose Intolerance Breath Test is a non-invasive diagnostic tool used to determine sucrose malabsorption, which occurs when the enzyme sucrase-isomaltase (also known as saccharase or invertase) is deficient or inactive in the small intestine. This condition leads to improper digestion of table sugar (sucrose), resulting in gas, bloating, abdominal pain, and diarrhea after consuming sugary foods.
Who Should Get Tested?
This test is ideal for individuals who:
- Experience symptoms like gas, bloating, diarrhea, or abdominal discomfort after consuming sugary foods or beverages
- Have been diagnosed with or suspect irritable bowel syndrome (IBS), especially diarrhea-predominant type
- Have a family history of sucrase-isomaltase deficiency
- Have unexplained malnutrition, growth concerns in children, or carbohydrate intolerance
- Suspect secondary enzyme deficiency after gastrointestinal infections, celiac disease, or Crohn’s disease
- Want to avoid unnecessary dietary restrictions and target sugar-specific intolerances
What This Test Measures
This breath test detects hydrogen and methane gas produced when undigested sucrose is fermented by gut bacteria, which indicates a lack of sucrase activity in the small intestine.
What You’ll Receive
Your results will include:
- Detailed hydrogen and methane gas levels over time
- Interpretation of gas patterns indicating presence or absence of sucrose intolerance
- Practitioner-friendly report with timeline graph and commentary
- Guidance on next steps, dietary modifications, or further testing (if needed)
Shipping & Processing
- Nationwide shipping available
- Shipping time to you: 3–5 business days
- Sample processing time: 1 business day once received at the lab
- Pre-paid return shipping and all materials included in kit
Collection & Preparation
Important! This test is time-sensitive and must be followed precisely for accurate results.
14 Days Before Testing:
Avoid:
- Antibiotics
- Barium studies
- Colonoscopies
- Enemas
If you’ve had diarrhea recently, wait 14 days before collecting your sample.
🍽 24 Hours Before Testing:
You must follow a very restricted diet. The only permitted items are:
- Drinks: Plain water, plain black coffee, plain tea
- Proteins: Baked or broiled chicken, fish, or turkey
- Carbohydrates: Plain white rice, white bread, white potatoes (no skin)
- Broths: Clear chicken or beef broth
- Other: Eggs, a pinch of salt/pepper
Avoid:
- Artificial sweeteners
- Creams, sugars, or seasonings not listed
- Laxatives, antacids, or fiber supplements like Metamucil or Citrucel
12 Hours Before Testing:
- Begin a strict fast (water only)
- You may brush your teeth
- No food or other drinks
On the Day of Collection:
- Continue fasting until test is complete
- Avoid: Smoking, vaping, second-hand smoke, vigorous exercise, sleeping, or brushing teeth one hour before or during the test
- Follow timed breath sample collection instructions exactly
- Use the provided test kit box to ship samples same day
Why Choose This Test?
- Non-invasive and easy-to-use home test
- Helps distinguish sucrose malabsorption from other causes of digestive discomfort
- Offers actionable insight for targeted diet planning and symptom relief
- Useful for patients of all ages, especially children with chronic GI issues

