AIP	Autoimmune Protocol
ANA	Antinuclear antibodies
BADL	Basic activities of daily living
BMI	Body mass index
CONUT	Controlling Nutritional Status
CRP	C-reactive protein
DAI	Disease activity index
DLCO	Diffusing capacity of the lung for carbon monoxide
DSS	Disease severity score
dSSc	Diffuse Systemic Sclerosis
ENA	Extractable nuclear antigen
ESPEN	European Society of Clinical Nutrition and Metabolism
ESR	Erythrocyte sedimentation rate
EULAR	European League Against Rheumatism
FODMAP	Fermentable oligosaccharides, disaccharides, monosaccharides, and polyols
FVC	Forced vital capacity
GAVE	Gastric antral vascular ectasia
GERD	Gastroesophageal reflux disease
GI	Gastrointestinal
GLIM	Global Leadership Initiative on Malnutrition
HAQ-DI	Heath assessment questionnaire disability index
IADL	Instrumental activities of daily living
IL-6	Interleukin-6
ILD	Interstitial lung disease
lSSc	Limited cutaneous Systemic Sclerosis
MedDiet	Mediterranean diet
MMF	Mycophenolate mofetil
mRSS	Modified Rodnan Skin Score
MUST	Malnutrition Universal Screening Tool
ONS	Oral nutrition supplements
PCI	Pneumatosis cystoides intestinalis
PhA	Phase angle
QoL	Quality of life
RDW	Red-cell-distribution-width
SARC-F	Strength, assistance with walking, rise from a chair, climb stairs, and falls
SARC-F + EBM	Strength, assistance with walking, rise from a chair, climb stairs, and falls adjusted for age and body mass
SF-36	36-item short form health survey
SGA	Subjective Global Assessment
SIBO	Small intestinal bacterial overgrowth
SS	Sjögren’s syndrome
SSc	Systemic sclerosis
SSc-ILD	SSc-associated interstitial lung disease
TNF-α	TNF-α: Tumor-necrosis factor-α
UCLA SCTC GIT 2.0	UCLA Scleroderma Clinical Trials Consortium Gastrointestinal Tract 2.0
VAS	Visual analogue scale