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Alternative Protein Sources: Nutritional Evaluation and Consumer Preferences

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: 5 August 2026 | Viewed by 507

Special Issue Editors


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Guest Editor
Department of Economics, Law, Cybersecurity, and Sports Science (DiSEGIM), University of Naples Parthenope, 80133 Naples, Italy
Interests: ultra-processed food; health and nutrition; consumer preferences; health claims; nutritional labelling; alternative proteins sources
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Economics and Legal Studies (DiSEG), University of Naples Parthenope, 80133 Naples, Italy
Interests: sustainable food consumption; consumer preferences; consumer information; alternative proteins; food labelling

Special Issue Information

Dear Colleagues,

The growing global demand for animal protein has become a significant public concern, as conventional meat production and consumption are associated with substantial environmental, ethical, and public health externalities.

The advent of alternative proteins—encompassing plant-based, insect-based, cultivated meat, and precision-fermented ingredients—signifies a promising and sustainable solution for future food systems. However, there are still significant knowledge gaps regarding these novel protein sources, and consumer acceptance remains comparatively low, primarily due to prejudice and concerns about their healthiness and nutritional value.

The Special Issue, "Alternative Protein Sources: Nutritional Evaluation and Consumer Preferences", invites original research and comprehensive reviews that address the full range of alternative proteins and their derived products. The primary focus of these contributions should be on nutrition, health, and consumer preferences. Contributions from multidisciplinary perspectives integrating the domains of food science, nutrition, and consumer research are particularly encouraged. With regard to the nutritional value of alternative proteins, we are keen to gather studies that have been experimentally validated.

Key topics include, but are not limited to, the following:

  • Consumer acceptance and perception of alternative proteins;
  • Nutritional and functional characterization of innovative alternative proteins;
  • Prospects for the future sustainable and nutritious production of alternative proteins;
  • Policies for providing accurate information to consumers and ensuring transparency in the market.

Prof. Dr. Azzurra Annunziata
Prof. Dr. Angela Mariani
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-blind 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

  • alternative proteins
  • nutritional benefits
  • plant-based proteins
  • insect-based proteins
  • cultivated meat
  • microbial proteins
  • biotechnological innovations

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Published Papers (1 paper)

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Research

16 pages, 3812 KB  
Article
Supplementation with Animal- and Plant-Derived Proteins Modulates the Structure and Predicted Metabolic Potential of the Gut Microbiota in Elite Football Players
by Bartosz Kroplewski, Katarzyna E. Przybyłowicz, Tomasz Sawicki and Sebastian Wojciech Przemieniecki
Nutrients 2026, 18(5), 768; https://doi.org/10.3390/nu18050768 - 26 Feb 2026
Viewed by 410
Abstract
Background/Objectives: The primary outcome of this 8-week randomized, controlled, parallel trial was to assess longitudinal shifts in gut microbiota structure and predicted metabolic potential in 45 elite football players following protein supplementation. Methods: Participants combined resistance training with daily intake (30 g) of [...] Read more.
Background/Objectives: The primary outcome of this 8-week randomized, controlled, parallel trial was to assess longitudinal shifts in gut microbiota structure and predicted metabolic potential in 45 elite football players following protein supplementation. Methods: Participants combined resistance training with daily intake (30 g) of whey protein concentrate (WPC), pea protein isolate (PPI), rice protein isolate (RPI), or a plant-protein blend (MIX). For the acquisition of prokaryotic metataxonomic data, the V3–V8 region of the 16S rRNA gene was sequenced using Oxford Nanopore Technology (ONT). Functional potential was inferred through the MACADAM database and STAMP software. Strict dietary monitoring and gravimetric adherence checks were performed to isolate the intervention effect. Results: While microbial alpha-diversity indices (Chao1, Shannon, Simpson) remained stable across all groups, significant source-specific shifts in taxonomic structure and predicted metabolic activity were identified. Whey protein concentrate (WPC) was associated with an increase in Bacteroidetes abundance and greater balance within the microbial community structure, whereas pea protein isolate (PPI) and the MIX correlated with reduced fermentative bacteria and elevated taxa potentially involved in cadaverine biosynthesis. Rice protein isolate (RPI) supplementation was associated with a higher predicted representation of taxa involved in succinate-to-butyrate fermentation pathways. These functional markers and differential responses of selected bacterial groups to particular protein types were observed. Conclusions: The data indicate complex interactions between supplement type, exposure duration, and microbiome response, underscoring the necessity for individualized dietary recommendations and supplementation strategies to optimize gut health and training adaptation in professional football players. Full article
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