AA	Arachidonic Acid
BMI	Body Mass Index
DAO	diamine oxidase
EPA	Eicosapentaenoic Acid
FAMEs	Fatty acid methyl esters
FAs	Fatty Acids
FID	Flame ionization detector
FODMAPs	fermentable oligosaccharides, disaccharides, monosaccharides, and polyols
GI	Gastrointestinal
H-FZ	patients with high levels of fecal zonulin
IBS	Irritable bowel syndrome
IBS-C	constipated IBS
IBS-D	diarrheal IBS,
IBS-M	mixed-pattern constipated and diarrheal IBS
IBS-SSS	IBS-Severity Scoring System
IBS-U	unclassified IBS
IDARS	IBS diet adherence report scale
I-FABP	intestinal-fatty acid-binding protein
IL-6, IL-8, IL-10	interleukins 6, 8, 10
Lac	Lactulose
LFD	Low FODMAP Diet
Man	Mannitol
N-FZ	patients with normal levels of fecal zonulin
PUFAs	Polyunsaturated fatty acids
SAT	Sugar absorption testing
s-IP	small intestinal permeability
Suc	Sucrose
TJs	Tight junctions
TNF-α	Tumor Necrosis Factor-alpha