Longevity.haus

Breath test to identify lactose and fructose malabsorption, common in IBS.

Additional Information

This test measures hydrogen and methane levels in exhaled breath after ingesting lactose and fructose. Poor absorption of these FODMAPs leads to fermentation by gut bacteria, causing IBS symptoms like bloating, pain, and diarrhea. Identifying malabsorption allows for targeted dietary changes (low FODMAP diet) to alleviate symptoms in up to 75% of patients. It's a first-line diagnostic tool before dietary intervention, avoiding unnecessary restrictions and negative effects on gut flora.

Biomarkers Tested (4)

Hydrogen increase over baseline by 90 mins (ppm)

Bacteria in the small intestine produce hydrogen and methane when exposed to glucose. SIBO may be diagnosed with a rise in breath hydrogen of >20ppm in the first 90 minutes.

Peak hydrogen increase over baseline (ppm)

Amount of hydrogen in exhaled breath after lactose ingestion; indicates carbohydrate fermentation in the gut.

Peak methane increase over baseline (ppm)

Amount of methane in exhaled breath after lactose ingestion; indicates carbohydrate fermentation in the gut.

Peak methane level at any point (ppm)

Bacteria in the small intestine produce hydrogen and methane gas when exposed to lactulose. Methane excretion is indicated by >10ppm sustained rise upon lactulose challenge.

FODMAP Check

Additional Information

Biomarkers Tested (4)

More from i-Screen

Full Thyroid Panel - ThyroidChange

Adrenocortex Check - ThyroidChange

Iron Studies - ThyroidChange

Inflammation Check

Test Details