5-HT	5-Hydroxytryptamine
α-LA	α-Linolenic Acid
AA	Arachidonic Acid
AP-1	Activating Protein-1
CD	Crohn Disease
COX	Cyclooxygenase
CRH	Corticotropin-Releasing Hormone
CRP	C-Reactive Protein
DHA	Docosahexaenoic Acid
EFSA	European Food Safety Authority
EPA	Eicosapentaenoic Acid
EVOO	Extra Virgin Olive Oil
FCP	Fecal Calprotectin
FOS	Fructooligosaccharides
GFD	Gluten-Free Diet
GI	Gastrointestinal
GLUT-2	Glucose Transporter 2
GLUT-5	Glucose Transporter 5
GOS	Galactooligosaccharides
HPA	Hypothalamic–Pituitary–Adrenal
HT	Hydroxytyrosol
IBD	Inflammatory Bowel Disease
IBS	Irritable Bowel Syndrome
IBDQ	Inflammatory Bowel Disease Questionnaire
ICAM-1	Intercellular Adhesion Molecule-1
IL-6	Interleukin 6
iNOS	Inducible Nitric Oxide Synthase
LA	Linolenic Acid
LFD	Low-FODMAP Diet
LOX	Lipoxygenase
MAPK	Mitogen-Activated Protein Kinase
MedDiet	Mediterranean Diet
MUFAs	Monounsaturated Fatty Acids
NF-κΒ	Nuclear Factor–B
NRF2	Nuclear Factor Erythroid 2-Related Factor
PI–IBS	Postinfectious Irritable Bowel Syndrome
PKC	Protein Kinase-C
PPRs	Pattern Recognition Receptors
PUFAs	Polyunsaturated Fatty Acids
QoL	Quality of Life
QUE	Quercetin
RCTs	Randomized Controlled Trials
RSV	Resveratrol
SCFAs	Short-Chain Fatty Acids
SFAs	Saturated Fatty Acids
SIBDQ	Short IBD Quality of Life Questionnaire
SIBO	Small Intestine Bacterial Overgrowth
TLRs	Toll-Like Receptors
TNBS	2,4,6-Trinitrobenzene Sulfonic Acid
TNF-a	Tumor Necrosis Factor-Alpha
UC	Ulcerative Colitis
VCAM-1	Vascular Cell Adhesion Molecule-1
VOO	Virgin Olive Oil
ZO-1	Zonula Occludens-1