A good nutritional status and healthy diets may decelerate disease disability and symptom severity and quality of life of peoples with multiple sclerosis (MS). Mediterranean diet (MD) can prevent several chronic diseases, including neurodegenerative disease. This is an observational, cross-sectional study on 279 older adults with MS, aiming to investigate the effects of MD against several aspects of mental health. Qualified questionnaires were used to assess disability and symptom severity, depression, anxiety, stress, sleep quality, cognitive status, physical activity, and MD adherence. Multivariate analysis showed that enhanced MD adherence was independently associated with lower prevalence of disability and symptom severity (P = .0019), depression (P = .0201), anxiety (P = .0287), perceived stress (P = .0021), inadequate sleep quality (P = .0033), cognitive impairment (P = .0018) and physical inactivity (P = .0028). Adopting MD may ameliorate mental health disturbances in older adults with MS. Future public health policies should inform older adults with MS for the favorable impacts of MD in improving the mental health MS comorbidities.

中文翻译：

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较高的地中海饮食依从性与患有多发性硬化症的老年人较低的残疾和症状严重程度、抑郁、焦虑、压力、睡眠质量、认知障碍和身体缺乏活动的患病率之间的关系。

良好的营养状况和健康饮食可以减缓多发性硬化症 (MS) 患者的疾病残疾、症状严重程度和生活质量。地中海饮食（MD）可以预防多种慢性疾病，包括神经退行性疾病。这是一项针对 279 名患有多发性硬化症的老年人的观察性横断面研究，旨在调查 MD 对心理健康多个方面的影响。使用合格的问卷来评估残疾和症状严重程度、抑郁、焦虑、压力、睡眠质量、认知状态、体力活动和 MD 依从性。多变量分析表明，增强 MD 依从性与较低的残疾发生率和症状严重程度 (P = .0019)、抑郁 (P = .0201)、焦虑 (P = .0287)、感知压力 (P = .0021)、睡眠质量不足 (P = .0033)、认知障碍 (P = .0018) 和缺乏身体活动 (P = .0028)。采用 MD 可能会改善患有多发性硬化症的老年人的心理健康问题。未来的公共卫生政策应让患有多发性硬化症的老年人了解MD对改善多发性硬化症合并症的心理健康的有利影响。