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Nutrients
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Nutritional Psychiatry: Eating Behaviors and Mental Health Outcomes
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Nutritional Psychiatry: Eating Behaviors and Mental Health Outcomes

A special issue of Nutrients (ISSN 2072-6643). This special issue belongs to the section "Nutrition and Neuro Sciences".

Deadline for manuscript submissions: 15 November 2026 | Viewed by 562

Editors

Dr. Oliwia Gawlik-Kotelnicka

E-Mail Website
Guest Editor
Department of Affective and Psychotic Disorders, Medical University of Lodz, Lodz, Poland
Interests: perinatal mental health; lifestyle medicine; metabolic psychiatry; nutritional psychiatry; depression; microbiota
Prof. Dr. Karolina H. Czarnecka-Chrebelska

E-Mail Website
Guest Editor
Department of Biomedicine and Genetics, Medical University of Lodz, Lodz, Poland
Interests: epigenetics related to thyroid and lung carcinogenesis; autoimmune diseases; chronic stress; molecular biology; miRNA and cfDNA circulating biomarkers; liquid biopsy; microbiota analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The rapidly growing field of nutritional psychiatry has highlighted the profound influence of diet, nutraceuticals, and gut-derived metabolites on mental health outcomes, including depression, anxiety, eating disorders, stress-related conditions, psychotic disorders, and cognitive dysfunction.

The relationship between nutrition, mitochondrial dysfunction, inflammation, oxidative stress, gut microbiota, and mental health has defined a scope of nutritional psychiatry, with growing evidence indicating that targeting the microbiome may influence psychological functioning, stress regulation, and psychiatric outcomes.

This Special Issue aims to consolidate and expand research on nutritional strategies in psychiatric populations targeted to deal with mental disorders’ core symptoms, comorbidities, or side effects of applied medications.

The Special Issue seeks original research and reviews on:

  1. The importance of nutraceuticals, e.g., polyphenols, in brain function and behavior.
  2. The role of prebiotics, probiotics, and postbiotics in the treatment and prevention of psychiatric symptoms.
  3. Mitochondria-focused interventions to promote mental health.
  4. Personalized nutrition strategies in different psychiatric populations.
  5. Multidisciplinary approaches that connect dietary science with psychological and behavioral outcomes.

Dr. Oliwia Gawlik-Kotelnicka
Prof. Dr. Karolina H. Czarnecka-Chrebelska
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nutrients is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • prebiotics
  • probiotics
  • postbiotics
  • psychobiotics
  • nutritional interventions
  • gut–brain axis
  • nutritional psychiatry
  • eating behaviors
  • mental health outcomes
  • mood and anxiety disorders
  • neuroinflammation
  • microbiota
  • polyphenols
  • mitochondria
  • neurogenesis

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Published Papers (1 paper)

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Research

17 pages, 1028 KB  
Article
Diet Quality, Healthy Practices, and Psychosocial Functioning Across School Youth, Students, and Adults in Poland: A Cross-Sectional Online Survey
by Klaudia Sochacka, Agata Kotowska and Sabina Lachowicz-Wiśniewska
Nutrients 2026, 18(12), 2022; https://doi.org/10.3390/nu18122022 - 21 Jun 2026
Viewed by 330
Abstract
Background: This study aimed to compare a limited set of predefined diet-, lifestyle-, knowledge-, and psychosocial indicators across school youth, students, and adults in Poland, and to examine their associations with three predefined outcomes: BMI ≥ 25 kg/m2, poorer mental well-being, [...] Read more.
Background: This study aimed to compare a limited set of predefined diet-, lifestyle-, knowledge-, and psychosocial indicators across school youth, students, and adults in Poland, and to examine their associations with three predefined outcomes: BMI ≥ 25 kg/m2, poorer mental well-being, and high stress/overload. Diet quality, daily health-related practices, psychosocial well-being, and stress/overload may co-occur across different life stages, but online survey data require a focused analytical framework to avoid overinterpretation. Methods: This cross-sectional anonymous online survey included 360 respondents: 154 school youth aged 15–19 years, 127 students aged 20–29 years, and 79 adults aged 30 years or older. Dietary assessment was based on the KomPAN questionnaire and included the pro-healthy diet index, non-healthy diet index, and Diet Quality Index. Study-specific scores were used for knowledge, healthy practices, psychosocial well-being, and stress/overload. Analyses were restricted to predefined group comparisons, selected correlations, and three whole-sample adjusted logistic regression models. Results: Adults had the highest BMI and waist/hip circumference, whereas school youth showed the highest non-healthy diet index and more frequent high processed-food intake. Among the knowledge and psychosocial indicators, only obesity knowledge differed significantly between groups, with the highest mean value among students. Stress/overload was inversely associated with psychosocial well-being, and DQI was positively associated with psychosocial well-being after adjustment for age, sex, and group. In adjusted whole-sample models, BMI ≥ 25 kg/m2 was positively associated with age and DQI and inversely associated with physical activity frequency and regular meals; the positive DQI–BMI association was interpreted cautiously as potentially reflecting reverse causality, reporting bias, or compensatory dietary modification among respondents with excess body weight. Poorer mental well-being was associated with higher stress/overload and inversely associated with DQI, physical activity frequency, and family meals. High stress/overload was positively associated with highly processed food intake and inversely associated with regular meals. Conclusions: The findings suggest that diet quality, behavioral regularity, and psychosocial burden may be more informative than knowledge alone when describing health-related profiles across age-defined groups. Because the study was cross-sectional, self-reported, anonymous, and based on a modest sample, the results should be interpreted as preliminary and hypothesis-generating rather than causal. Full article
(This article belongs to the Special Issue Nutritional Psychiatry: Eating Behaviors and Mental Health Outcomes)
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