Psychological and Sleep Effects of Tryptophan and Magnesium-Enriched Mediterranean Diet in Women with Fibromyalgia

Alejandro Martínez-Rodríguez, Jacobo Á. Rubio-Arias, Domingo J. Ramos-Campo, Cristina Reche-García, Belén Leyva-Vela and Yolanda Nadal-Nicolás
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Alejandro Martínez-Rodríguez: Faculty of Sciences, University of Alicante, 03690 Alicante, Spain
Jacobo Á. Rubio-Arias: Effort Physiology Laboratory Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science-INEF, Universidad Politécnica de Madrid, 28040 Madrid, Spain
Domingo J. Ramos-Campo: Faculty of Sports, Catholic University of Murcia, 30107 Murcia, Spain
Cristina Reche-García: Faculty of Nursing, Catholic University of Murcia, 30107 Murcia, Spain
Belén Leyva-Vela: Department of Health, Vinalopó University Hospital, 03293 Elche, Spain
Yolanda Nadal-Nicolás: Faculty of Medicine, Miguel Hernández University of Elche, 03202 Elche, Spain

IJERPH, 2020, vol. 17, issue 7, 1-12

Abstract: Anxiety, mood disturbance, eating and sleep disorders, and dissatisfaction with body image are prevalent disorders in women with fibromyalgia. The authors of this study aimed to determine the effects of tryptophan (TRY) and magnesium-enriched (MG) Mediterranean diet on psychological variables (trait anxiety, mood state, eating disorders, self-image perception) and sleep quality in women with fibromyalgia ( n = 22; 49 ± 5 years old). In this randomized, controlled trial, the participants were randomly assigned to the experimental group and the placebo group. The intervention group received a Mediterranean diet enriched with high doses of TRY and MG (60 mg of TRY and 60 mg of MG), whereas the control group received the standard Mediterranean diet. Pittsburgh Sleep Quality Questionnaire, Body Shape Questionnaire, State–Trait Anxiety Inventory (STAI), Profile of Mood States (POMS-29) Questionnaire, Eating Attitudes Test-26, and Trait Anxiety Inventory were completed before and 16 weeks after the intervention. Significant differences were observed between groups after the intervention for the mean scores of trait anxiety ( p = 0.001), self-image perception ( p = 0.029), mood disturbance ( p = 0.001), and eating disorders ( p = 0.006). This study concludes that tryptophan and magnesium-enriched Mediterranean diet reduced anxiety symptoms, mood disturbance, eating disorders, and dissatisfaction with body image but did not improve sleep quality in women with fibromyalgia.

Keywords: micronutrients; nutrition; therapy; chronic disease (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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