Study: NCT06541938

Intervention type: DIETARY_SUPPLEMENT
Group type: EXPERIMENTAL
Intervention: low FODMAP diet
Description: You consume low FODMAP diet for 24 hours before taking the FODMAP challenge

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: low FODMAP diet
Description: You consume low FODMAP diet for 24 hours before taking the FODMAP challenge

Intervention type: DIETARY_SUPPLEMENT
Group type: EXPERIMENTAL
Intervention: Lactose Sachet
Description: You will engage in a 4-week study to document responses to 4 Fermentable Carbohydrates(FCHOs): Lactose(25g), Fructose(25g), Sorbitol(10g), and Inulin(10g). Each FCHO, dissolved in 250ml of lukewarm water, is taken after a 24-hour low FODMAP diet to clear residual FCHOs. Exhaled H2 and CH4 are measured before and 60 minutes after the first and last meal of the low FODMAP period. Each morning, after a baseline breath test, you will consume one FCHO challenge and record breath tests for three hours at 15-minute intervals. Following each challenge, there is a 6-day washout period with your typical diet. This 24-hour low FODMAP diet, FCHO challenge, and washout cycle is repeated until all FCHOs are tested. The order of FCHO challenges is randomized and consistent among all, who remain blinded to the order to minimize confounding factors.~25g sachet having lactose roughly equal to amount of lactose present in 1 large glass of milk

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: Lactose Sachet
Description: You will engage in a 4-week study to document responses to 4 Fermentable Carbohydrates(FCHOs): Lactose(25g), Fructose(25g), Sorbitol(10g), and Inulin(10g). Each FCHO, dissolved in 250ml of lukewarm water, is taken after a 24-hour low FODMAP diet to clear residual FCHOs. Exhaled H2 and CH4 are measured before and 60 minutes after the first and last meal of the low FODMAP period. Each morning, after a baseline breath test, you will consume one FCHO challenge and record breath tests for three hours at 15-minute intervals. Following each challenge, there is a 6-day washout period with your typical diet. This 24-hour low FODMAP diet, FCHO challenge, and washout cycle is repeated until all FCHOs are tested. The order of FCHO challenges is randomized and consistent among all, who remain blinded to the order to minimize confounding factors.~25g sachet having lactose roughly equal to amount of lactose present in 1 large glass of milk

Intervention type: DIETARY_SUPPLEMENT
Group type: EXPERIMENTAL
Intervention: Fructose Sachet
Description: You will engage in a 4-week study to document responses to 4 Fermentable Carbohydrates(FCHOs): Lactose(25g), Fructose(25g), Sorbitol(10g), and Inulin(10g). Each FCHO, dissolved in 250ml of lukewarm water, is taken after a 24-hour low FODMAP diet to clear residual FCHOs. Exhaled H2 and CH4 are measured before and 60 minutes after the first and last meal of the low FODMAP period. Each morning, after a baseline breath test, you consume one FCHO challenge and record breath tests for three hours at 15-minute intervals. Following each challenge, there is a 6-day washout period with your typical diet. This 24-hour low FODMAP diet, FCHO challenge, and washout cycle is repeated until all FCHOs are tested. The order of FCHO challenges is randomized and consistent among all, who remain blinded to the order to minimize confounding factors.~25g sachet having fructose roughly equal to the amount of fructose present in 2 large apples

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: Fructose Sachet
Description: You will engage in a 4-week study to document responses to 4 Fermentable Carbohydrates(FCHOs): Lactose(25g), Fructose(25g), Sorbitol(10g), and Inulin(10g). Each FCHO, dissolved in 250ml of lukewarm water, is taken after a 24-hour low FODMAP diet to clear residual FCHOs. Exhaled H2 and CH4 are measured before and 60 minutes after the first and last meal of the low FODMAP period. Each morning, after a baseline breath test, you consume one FCHO challenge and record breath tests for three hours at 15-minute intervals. Following each challenge, there is a 6-day washout period with your typical diet. This 24-hour low FODMAP diet, FCHO challenge, and washout cycle is repeated until all FCHOs are tested. The order of FCHO challenges is randomized and consistent among all, who remain blinded to the order to minimize confounding factors.~25g sachet having fructose roughly equal to the amount of fructose present in 2 large apples

Intervention type: DIETARY_SUPPLEMENT
Group type: EXPERIMENTAL
Intervention: Sorbitol Sachet
Description: You will engage in a 4-week study to document responses to 4 Fermentable Carbohydrates(FCHOs): Lactose(25g), Fructose(25g), Sorbitol(10g), and Inulin(10g). Each FCHO, dissolved in 250ml of lukewarm water, is taken after a 24-hour low FODMAP diet to clear residual FCHOs. Exhaled H2 and CH4 are measured before and 60 minutes after the first and last meal of the low FODMAP period. Each morning, after a baseline breath test, you consume one FCHO challenge and record breath tests for three hours at 15-minute intervals. Following each challenge, there is a 6-day washout period with your typical diet. This 24-hour low FODMAP diet, FCHO challenge, and washout cycle is repeated until all FCHOs are tested. The order of FCHO challenges is randomized and consistent among all, who remain blinded to the order to minimize confounding factors.~10g sachet of sorbitol is roughly equal to the amount of sorbitol present in 3 pears or 1 prune

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: Sorbitol Sachet
Description: You will engage in a 4-week study to document responses to 4 Fermentable Carbohydrates(FCHOs): Lactose(25g), Fructose(25g), Sorbitol(10g), and Inulin(10g). Each FCHO, dissolved in 250ml of lukewarm water, is taken after a 24-hour low FODMAP diet to clear residual FCHOs. Exhaled H2 and CH4 are measured before and 60 minutes after the first and last meal of the low FODMAP period. Each morning, after a baseline breath test, you consume one FCHO challenge and record breath tests for three hours at 15-minute intervals. Following each challenge, there is a 6-day washout period with your typical diet. This 24-hour low FODMAP diet, FCHO challenge, and washout cycle is repeated until all FCHOs are tested. The order of FCHO challenges is randomized and consistent among all, who remain blinded to the order to minimize confounding factors.~10g sachet of sorbitol is roughly equal to the amount of sorbitol present in 3 pears or 1 prune

Intervention type: DIETARY_SUPPLEMENT
Group type: EXPERIMENTAL
Intervention: Inulin Sachet
Description: You will engage in a 4-week study to document responses to 4 Fermentable Carbohydrates(FCHOs): Lactose(25g), Fructose(25g), Sorbitol(10g), and Inulin(10g). Each FCHO, dissolved in 250ml of lukewarm water, is taken after a 24-hour low FODMAP diet to clear residual FCHOs. Exhaled H2 and CH4 are measured before and 60 minutes after the first and last meal of the low FODMAP period. Each morning, after a baseline breath test, you consume one FCHO challenge and record breath tests for three hours at 15-minute intervals. Following each challenge, there is a 6-day washout period with your typical diet. This 24-hour low FODMAP diet, FCHO challenge, and washout cycle is repeated until all FCHOs are tested. The order of FCHO challenges is randomized and consistent among all, who remain blinded to the order to minimize confounding factors.~A 10g sachet of inulin is roughly equal to the amount of inulin present in 1 head of garlic

Intervention type: DIETARY_SUPPLEMENT
Group type: ACTIVE_COMPARATOR
Intervention: Inulin Sachet
Description: You will engage in a 4-week study to document responses to 4 Fermentable Carbohydrates(FCHOs): Lactose(25g), Fructose(25g), Sorbitol(10g), and Inulin(10g). Each FCHO, dissolved in 250ml of lukewarm water, is taken after a 24-hour low FODMAP diet to clear residual FCHOs. Exhaled H2 and CH4 are measured before and 60 minutes after the first and last meal of the low FODMAP period. Each morning, after a baseline breath test, you consume one FCHO challenge and record breath tests for three hours at 15-minute intervals. Following each challenge, there is a 6-day washout period with your typical diet. This 24-hour low FODMAP diet, FCHO challenge, and washout cycle is repeated until all FCHOs are tested. The order of FCHO challenges is randomized and consistent among all, who remain blinded to the order to minimize confounding factors.~A 10g sachet of inulin is roughly equal to the amount of inulin present in 1 head of garlic

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: AIRE-2 Portable breath analyzer
Description: The AIRE-2 breath analyzer will capture hydrogen and methane at baseline and after every fodmap challenge

Intervention type: DEVICE
Group type: ACTIVE_COMPARATOR
Intervention: AIRE-2 Portable breath analyzer
Description: The AIRE-2 breath analyzer will capture hydrogen and methane at baseline and after every fodmap challenge