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Sustainable Diets and Policy Innovations for Healthier Food Systems

A special issue of Nutrients (ISSN 2072-6643). This special issue belongs to the section "Nutritional Policies and Education for Health Promotion".

Deadline for manuscript submissions: 15 October 2026 | Viewed by 738

Editors


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Guest Editor
Faculty of Health Sciences, Pontifical University of Salamanca, 37002 Salamanca, Castille and León, Spain
Interests: nutritional sciences; nutritional deficiencies; nutritional needs; nutrition and pharmacology; public health; new technologies applied to food

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Guest Editor
Faculty of Health Sciences, Catholic University of Ávila, 05005 Ávila, Spain
Interests: pharmacology; psychopharmacology; nutrition and pharmacology; public health; new technologies applied to food
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Faculty of Health Sciences, Pontifical University of Salamanca, 37002 Salamanca, Castille and León, Spain
Interests: biochemistry; molecular biology; human genetics; clinical genetics; public Health
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Food systems must provide an adequate supply of food but also do so in a way that is consistent with health and environmental objectives. Sustainable diets are based on eating patterns that are low in environmental impact, nutritionally safe and culturally acceptable. Policy innovations for more sustainable food systems focus on reducing waste, encouraging local production, and promoting healthy and accessible diets. Likewise, these policies address as specific objectives the implementation of innovative production technologies and the increase in the production and acceptance of products of biological origin, the incorporation of criteria of environmental sustainability and circularity in systems of biological origin, and the facilitation of social acceptance. In addition, it is important to address the social challenge of ensuring food and nutritional security. Articles on sustainable diets and policy innovations for healthier food systems can contribute to providing appropriate concepts, methods, tools and resources to identify effective and sustainable solutions in this framework.

The Special Issue will include research by the most recognized figures researching issues related to healthy and sustainable food systems. As well as the innovations developed in this field. We also seek to address new and challenging topics within the theme of the Special Issue.

Dr. Rosario Pastor
Dr. Carolina García
Dr. Carmen da Casa
Guest Editors

Manuscript Submission Information

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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

  • sustainable food systems
  • healthy diets
  • food security
  • sustainable
  • food policies
  • local foods
  • innovative food
  • alternative proteins
  • artificial intelligence
  • circular food economy
  • resilient food systems
  • food waste reduction
  • food biodiversity

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Published Papers (1 paper)

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Research

32 pages, 1737 KB  
Article
Beyond Calories—Changes in Protein Supply Structure and Implications for Sustainable Food Systems in Sub-Saharan Africa
by Teodor Ioan Trasca, Ioana Mihaela Balan, Nicoleta Mateoc-Sirb, Aisha Simbiat Hussaini, Annie Gaise Magomboane and Sorin Mihai Cimpeanu
Nutrients 2026, 18(14), 2372; https://doi.org/10.3390/nu18142372 - 20 Jul 2026
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Abstract
Background/Objectives: Food system assessments in Sub-Saharan Africa have predominantly focused on caloric availability, often overlooking the structural and nutritional quality of the food supply. This study examines what drives and constrains food system transformation in Sub-Saharan Africa under different development pathways, using long-term [...] Read more.
Background/Objectives: Food system assessments in Sub-Saharan Africa have predominantly focused on caloric availability, often overlooking the structural and nutritional quality of the food supply. This study examines what drives and constrains food system transformation in Sub-Saharan Africa under different development pathways, using long-term changes in caloric availability, adjusted protein density, the balance between animal and plant proteins, and the diversification of animal protein sources as the empirical basis for this assessment. Methods: The analysis is based on data from the Food and Agriculture Organization of the United Nations for the period 1961–2023, covering Nigeria, the Republic of the Congo, the Democratic Republic of the Congo, Kenya, South Africa and Ethiopia. A longitudinal approach was applied where data were available, complemented by a recent comparative analysis (2010–2023). Derived indicators include total protein supply, adjusted protein density, the share of animal and plant proteins and the Herfindahl–Hirschman index (HHI) to assess the diversification of animal protein sources. Results: Findings show that increases in caloric availability are not consistently associated with improvements in adjusted protein density or nutritional quality. Significant differences are observed across countries in protein supply levels, structural composition, and diversification patterns. Results reveal heterogeneous trajectories of food systems, from diversified to structurally constrained or highly concentrated systems. Conclusions: Beyond caloric availability, the structure and quality of the food supply are essential for assessing food system performance. Quantitative gains alone do not ensure improved nutritional or sustainable outcomes. The study highlights the importance of considering protein supply structure, diversification and nutritional efficiency in the context of SDG 2 (Zero Hunger) and broader food system transformation. Full article
(This article belongs to the Special Issue Sustainable Diets and Policy Innovations for Healthier Food Systems)
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