Age

18–any

Sex

ALL

Healthy volunteers

Not accepted

Having a neurological or systemic disease other than Multiple Sclerosis that may affect chewing function
Inability to provide adequate communication or cooperation due to psychiatric disorders
Not being diagnosed with Multiple Sclerosis
Not volunteering to participate in the study
Presence of severe problems preventing questionnaire administration (visual and/or hearing impairments)
History or presence of psychiatric and/or other neurological disorders
Presence of severe neurological findings that may negatively affect cognitive performance (e.g., severe optic neuritis)
Use of medications affecting cognitive functions
Alcohol or substance use
Having experienced a relapse within the last month
Having received corticosteroid treatment within the last month
History of stroke, head and neck cancer, or rheumatic diseases that may affect swallowing and chewing performance

Mastication, Cognition, and Nutritional Status in Multiple Sclerosis