02
Prepare + Take Breath SamplesFollow the 24-hour preparation diet (avoiding fermentable foods), then fast overnight for 12 hours with only water. After drinking the lactulose solution (10g), collect breath samples at baseline and at 20, 40, 60, 90, and 120 minutes using the provided collection tubes.
03
Ship + Receive ResultsShip your breath samples using the prepaid shipping materials. Results are typically available within 7 days with a detailed report showing hydrogen and methane gas levels over time, interpreted according to North American consensus guidelines.