Table 4. Individual relationships between GI symptoms and preceding meal nutrients using regression analyses.

Participant	Symptom	Directionality	Nutrient	Correlated nutrientsa
1F	Bloating	Improving	Galactose*	None
		Worsening	Caffeine*	Fructose
			Total protein*	Total calories, total fat, magnesium, potassium
	Diarrhea	Worsening	Caffeine*	Fructose
2F	Diarrhea	Worsening	Soluble dietary fiber*	Total carbohydrates, total dietary fiber, starch
3F	Abdominal pain	Worsening	Total sugars*	Total calories, fructose, total carbohydrates
	Diarrhea	Worsening	Total protein*	Sodium
4F	Constipation	Worsening	Galactose*	None
5F	Diarrhea	Improving	Percentage of fat*	None
			Fructose*	None
			Starch**	Total calories, total carbohydrates, sodium
			Magnesium**	Potassium, total dietary fiber, insoluble fiber
		Worsening	Soluble dietary fiber*	Total dietary fiber
			Lactose*	Galactose, total protein
			Total fat	Total protein, potassium
9F	Bloating	Worsening	Percentage of fat*	None
			Magnesium*	Total carbohydrates, sodium, potassium, total dietary fiber, soluble dietary fiber, insoluble dietary fiber
10F	Bloating	Worsening	Mannitol*	None
11F	Abdominal pain	Worsening	Sorbitol**	None
	Constipation	Improving	Sorbitol*	None
			Starch*	Total calories, total carbohydrates, total protein
	Diarrhea	Worsening	Caffeine*	None
6M, 7M, 8M	No significant associations found

F, female; GI, gastrointestinal; M, male. *P<0.05, **P<0.001.

^aPrior to running regression analyses, a feature selection particular to each participant's diet was performed. Nutrients that had high pairwise correlations (>0.75) with other nutrients are in bold and the nutrient(s) with the highest average correlation of the highly correlated were removed and listed in this column.