Integrating plant proteins into sustainable food systems: a narrative review of challenges and opportunities
DOI:
https://doi.org/10.5281/zenodo.18294284Keywords:
plant-based proteins, alternative proteins, food systems, technological barriers, consumer acceptance, sustainable protein transitionAbstract
The projected growth of the global population toward 2050 will significantly increase protein demand, intensifying the environmental pressure associated with animal-based sources. In this context, plant-based proteins emerge as a sustainable alternative with strong potential to reduce the environmental impact of food systems. However, their large-scale adoption faces technological, economic, cultural, and regulatory challenges, mainly related to techno-functional limitations, processing costs, and consumer acceptance. Technological advances, public policy support, cost-reduction strategies, and consumer education are identified as key elements to overcome these barriers, highlighting the need for a systemic and multidisciplinary approach to strengthen food security and promote more sustainable food systems.
Downloads
References
Aiking, H. (2011). Future protein supply. Trends in Food Science & Technology, 22(2–3), 112–120. https://doi.org/10.1016/j.tifs.2010.04.005
Akaichi, F., Glenk, K., & Revoredo-Giha, C. (2019). Could animal welfare claims and nutritional information boost the demand for organic meat? Evidence from non-hypothetical experimental auctions. Journal of Cleaner Production, 207, 961–970. https://doi.org/10.1016/j.jclepro.2018.10.064
Alvarez-Jubete, L., Arendt, E. K., & Gallagher, E. (2010). Nutritive value of pseudocereals and their increasing use as functional gluten-free ingredients. Trends in Food Science & Technology, 21(2), 106–113. https://doi.org/10.1016/j.tifs.2009.10.014
Amagliani, L., O’Regan, J., Kelly, A. L., & O’Mahony, J. A. (2017). Composition and protein profile analysis of rice protein ingredients. Journal of Food Composition and Analysis, 59, 18–26. https://doi.org/10.1016/j.jfca.2016.12.026
Amir, S., Amir, B., & Tahir, H. (2023). Introduction to Plant Protein-Based Future Foods. In Novel Plant Protein Processing (pp. 1–34). CRC Press. https://www.taylorfrancis.com/chapters/edit/10.1201/9781003369790-1/introduction-plant-protein-based-future-foods-saira-amir-bisma-amir-hafsa-tahir
Bennetau-Pelissero, C. (2018). Plant Proteins from Legumes. In: Mérillon, J. M., Ramawat, K. (Eds.) Bioactive Molecules in Food. Reference Series in Phytochemistry. Springer, Cham. https://doi.org/10.1007/978-3-319-54528-8_3-1
Bryant, C. J. (2022). Plant-based animal product alternatives are healthier and more environmentally sustainable than animal products. Future Foods, 6, 100174. https://doi.org/10.1016/j.fufo.2022.100174
Capacci, S., Mazzocchi, M., Shankar, B., Brambila Macias, J., Verbeke, W., Pérez-Cueto, F. J., Kozioł-Kozakowska, A., Piórecka, B., Niedzwiedzka, B., & D’Addesa, D. (2012). Policies to promote healthy eating in Europe: A structured review of policies and their effectiveness. Nutrition Reviews, 70(3), 188–200. https://doi.org/10.1111/j.1753-4887.2011.00442.x
Chen, S., & Luo, X. (2024). Chia seed protein as a promising source for plant-based foods: Functional properties, processing methods and potential food applications. Applied Food Research, 4(2), 100459. https://doi.org/10.1016/j.afres.2024.100459
Chiang, J. H., Loveday, S. M., Hardacre, A. K., & Parker, M. E. (2019). Effects of soy protein to wheat gluten ratio on the physicochemical properties of extruded meat analogues. Food Structure, 19, 100102. https://doi.org/10.1016/j.foostr.2018.11.002
Chung, K. H., Shin, K. O., Hwang, H. J., & Choi, K.-S. (2013). Chemical composition of nuts and seeds sold in Korea. Nutrition Research and Practice, 7(2), 82–88. https://doi.org/10.4162/nrp.2013.7.2.82
Circus, V. E., & Robison, R. (2019). Exploring perceptions of sustainable proteins and meat attachment. British Food Journal, 121(2), 533–545. https://doi.org/10.1108/BFJ-01-2018-0025
Coluccia, B., Agnusdei, G. P., De Leo, F., Vecchio, Y., La Fata, C. M., & Miglietta, P. P. (2022). Assessing the carbon footprint across the supply chain: Cow milk vs soy drink. Science of The Total Environment, 806(Part 3), 151200. https://doi.org/10.1016/j.scitotenv.2021.151200
De Boer, J., & Aiking, H. (2011). On the merits of plant-based proteins for global food security: Marrying macro and micro perspectives. Ecological Economics, 70(7), 1259–1265. https://doi.org/10.1016/j.ecolecon.2011.03.001
de Moraes, C. C., Claro, P. B., & Rodrigues, V. P. (2023). Why can’t the alternative become mainstream? Unpacking the barriers and enablers of sustainable protein innovation in Brazil. Sustainable Production and Consumption, 35, 313–324. https://doi.org/10.1016/j.spc.2022.11.008
Dupont, J., & Fiebelkorn, F. (2020). Attitudes and acceptance of young people toward the consumption of insects and cultured meat in Germany. Food Quality and Preference, 85, 103983. https://doi.org/10.1016/j.foodqual.2020.103983
Eckert, K. F., Douglas, S., Zhang, F., Brauer, P., Duncan, A. M., & Haines, J. (2024). Costly, confusing, polarizing, and suspect: Public perceptions of plant-based eating from a thematic analysis of social media comments. Frontiers in Sustainable Food Systems, 8, 1397004. https://doi.org/10.3389/fsufs.2024.1397004
Espinosa-Marrón, A., Adams, K., Sinno, L., Cantu-Aldana, A., Tamez, M., Marrero, A., Bhupathiraju, S. N., & Mattei, J. (2022). Environmental impact of animal-based food production and the feasibility of a shift toward sustainable plant-based diets in the United States. Frontiers in Sustainability, 3, 841106. https://doi.org/10.3389/frsus.2022.841106
Fatokun, C.A., S.A. Tarawali, B.B. Singh, P.M. Kormawa, and M. Tamò (Ed.). (2002). Challenges and Opportunities for Enhancing Sustainable Cowpea Production. Proceedings of the World Cowpea Conference III held at the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 4-8 September 2000. IITA, Ibadan, Nigeria. https://biblio.iita.org/documents/S02ProcChallengesFatokunNothomNodev.pdf-2a50d34ca2b3da7ceabc0c446148cb0c.pdf
Fellmann, T., Witzke, P., Weiss, F., Van Doorslaer, B., Drabik, D., Huck, I., Salputra, G., Jansson, T., & Leip, A. (2018). Major challenges of integrating agriculture into climate change mitigation policy frameworks. Mitigation and Adaptation Strategies for Global Change, 23(3), 451–468. https://doi.org/10.1007/s11027-017-9743-2
Ferrari, L., Panaite, S. A., Bertazzo, A., & Visioli, F. (2022). Animal-and Plant-Based Protein Sources: A Scoping Review of Human Health Outcomes and Environmental Impact. Nutrients, 14(23), 5115. https://doi.org/10.3390/nu14235115
Geijer, T., & Gammoudy, A. (2020). Growth of meat and dairy alternatives is stirring up the European food industry. ING Think. https://think.ing.com/uploads/reports/ING_report_-_Growth_of_meat_and_dairy_alternatives_is_stirring_up_the_European_food_industry.pdf
Gerrano, A. S., Lubinga, M. H., & Bairu, M. W. (2022). Genetic resources management, seed production constraints and trade performance of orphan crops in Southern Africa: A case of Cowpea. South African Journal of Botany, 146, 340–347. https://doi.org/10.1016/j.sajb.2021.11.007
Godfray, H. C. J. (2019). Meat: The future series-alternative proteins. Report. Meat: The Future Series. World Economic Forum. http://www3.weforum.org/docs/WEF_White_Paper_Alternative_Proteins.pdf
Grasso, A. C., Hung, Y., Olthof, M. R., Verbeke, W., & Brouwer, I. A. (2019). Older consumers’ readiness to accept alternative, more sustainable protein sources in the European Union. Nutrients, 11(8), 1904. https://doi.org/10.3390/nu11081904
Henchion, M., Hayes, M., Mullen, A. M., Fenelon, M., & Tiwari, B. (2017). Future protein supply and demand: Strategies and factors influencing a sustainable equilibrium. Foods, 6(7), 53. https://doi.org/10.3390/foods6070053
Hoogenkamp, H., Kumagai, H., & Wanasundara, J. P. D. (2017). Rice protein and rice protein products. In S. R. Nadathur, J. P.D. Wanasundara, & L. Scanlin (Ed.) Sustainable protein sources (pp. 47–65). https://doi.org/10.1016/B978-0-12-802778-3.00003-2
Ismail, B. P., Senaratne-Lenagala, L., Stube, A., & Brackenridge, A. (2020). Protein demand: Review of plant and animal proteins used in alternative protein product development and production. Animal Frontiers, 10(4), 53–63. https://doi.org/10.1093/af/vfaa040
Kovačević, J., Bechtold, T., & Pham, T. (2024). Plant-Based Proteins and Their Modification and Processing for Vegan Cheese Production. Macromol, 4(1), 23–41. https://doi.org/10.3390/macromol4010002
Lakshmi, A. J., & Kaul, P. (2011). Nutritional potential, bioaccessibility of minerals and functionality of watermelon (Citrullus vulgaris) seeds. LWT-Food Science and Technology, 44(8), 1821–1826. https://doi.org/10.1016/j.lwt.2011.04.001
Langyan, S., Yadava, P., Khan, F., Dar, Z., Singh, R., & Kumar, A. (2022). Sustaining Protein Nutrition Through Plant-Based Foods. Frontiers in Nutrition, 8, 772573. https://doi.org/10.3389/fnut.2021.772573
López, D. N., Galante, M., Robson, M., Boeris, V., & Spelzini, D. (2018). Amaranth, quinoa and chia protein isolates: Physicochemical and structural properties. International Journal of Biological Macromolecules, 109, 152–159. https://doi.org/10.1016/j.ijbiomac.2017.12.080
Malik, A. M., & Singh, A. (2022). Pseudocereals proteins-A comprehensive review on its isolation, composition and quality evaluation techniques. Food Chemistry Advances, 1, 100001. https://doi.org/10.1016/j.focha.2021.100001
Malila, Y., Owolabi, I. O., Chotanaphuti, T., Sakdibhornssup, N., Elliott, C. T., Visessanguan, W., Karoonuthaisiri, N., & Petchkongkaew, A. (2024). Current challenges of alternative proteins as future foods. npj Science of Food, 8(53). https://doi.org/10.1038/s41538-024-00291-w
Mejia, M. A., Harwatt, H., Jaceldo‐Siegl, K., Soret, S., & Sabate, J. (2016). The Future of Meat: Exploring The Nutritional Qualities And Environmental Impacts of Meat Replacements. The FASEB Journal, 30(S1), 894-898. https://doi.org/10.1096/fasebj.30.1_supplement.894.8
Muhammad, F., Nadeem, M., Issa, M., & Hussain, S. (2012). Nutritional and therapeutic potential of sunflower seeds: A review. British Food Journal, 114(4), 544–552. https://doi.org/10.1108/00070701211219559
Nanta, P., Skolpap, W., & Kasemwong, K. (2021). Influence of hydrocolloids on the rheological and textural attributes of a gluten‐free meat analog based on soy protein isolate. Journal of Food Processing and Preservation, 45(3). https://doi.org/10.1111/jfpp.15244
Newton, P., Eichhorst, W., Hegwood, M., Morais-da-Silva, R. L., Heidemann, M. S., Hoffmann, A., & Reis, G. G. (2024). Price above all else: An analysis of expert opinion on the priority actions to scale up production and consumption of plant-based meat in Brazil. Frontiers in Sustainable Food Systems, 8, 1303448. https://doi.org/10.3389/fsufs.2024.1303448
Niva, M., Vainio, A., & Jallinoja, P. (2017). Barriers to increasing plant protein consumption in Western populations. In F. Mariotti (Ed.) Vegetarian and Plant-Based Diets in Health and Disease Prevention (pp. 157–171). https://doi.org/10.1016/B978-0-12-803968-7.00010-1
Proveg International. (2024). From meat to legumes – tracking Europe’s shift towards more plant-based eating. https://proveg.org/article/from-meat-to-legumes-tracking-europes-shift-towards-more-plant-based-eating/
Rhodes, D. G., Morton, S., Hymes, M. A., Friday, J. E., Martin, C. L., Steinfeldt, L. C., & Moshfegh, A. J. (2020). 2017–2018 food and nutrient database for dietary studies. US Department of Agriculture, Agricultural Research Service Beltsville MD, USA. https://www.ars.usda.gov/ARSUserFiles/80400530/pdf/fndds/2017_2018_FNDDS_Doc.pdf
Rogers, E. (2023). Impossible Foods: Growing the Plant-Based Meat Sector at Home and Abroad. Journal for Global Business and Community, 14(1). https://doi.org/10.56020/001c.71493
Sabaté, J., & Soret, S. (2014). Sustainability of plant-based diets: Back to the future. The American Journal of Clinical Nutrition, 100(Suppl 1), 476S-482S. https://doi.org/10.3945/ajcn.113.071522
Schenk, P., Rössel, J., & Scholz, M. (2018). Motivations and constraints of meat avoidance. Sustainability, 10(11), 3858. https://doi.org/10.3390/su10113858
Sha, L., & Xiong, Y. L. (2020). Plant protein-based alternatives of reconstructed meat: Science, technology, and challenges. Trends in Food Science & Technology, 102, 51–61. https://doi.org/10.1016/j.tifs.2020.05.022
Shah, H., Ahmed, L., & Barry-Ryan, C. (2024). Ensuring compliance: A review of EU regulations and standards for incorporating legume and legume by-product proteins in food formulations. Heliyon, 10(21), 1-17. https://doi.org/10.1016/j.heliyon.2024.e39821
Shewry, P. R. (2009). Wheat. Journal of Experimental Botany, 60(6), 1537–1553. https://doi.org/10.1093/jxb/erp058
Sim, S. Y. J., Srv, A., Chiang, J. H., & Henry, C. J. (2021). Plant proteins for future foods: A roadmap. Foods, 10(8), 1967. https://doi.org/10.3390/foods10081967
Su, X., Takahashi, K., Yokohata, T., Tanaka, K., Fujimori, S., Takakura, J., Yamaguchi, R., & Xiong, W. (2024). Developing an integrated assessment model to explore optimal cost-benefit paths for Shared Socioeconomic Pathways scenarios. EGUsphere, 2024, 1–55. https://doi.org/10.5194/egusphere-2024-1640
Swain, K. A. (2024). Can we slow climate change while feeding a hungry world? Media narratives about the food-water-energy nexus. In M. Antonelli, & P. Isernia (Eds.) Food Sustainability and the Media (pp. 101-159). https://doi.org/10.1016/B978-0-323-91227-3.00006-8
Sweet, L. (2019). How can we produce enough protein to feed 10 billion people? World Economic Forum. https://www.weforum.org/stories/2019/01/how-can-we-produce-enough-protein-to-feed-10-billion-people/
Takeda, K. F., Yazawa, A., Yamaguchi, Y., Koizumi, N., & Shineha, R. (2023). Comparison of public attitudes toward five alternative proteins in Japan. Food Quality and Preference, 105, 104787. https://doi.org/10.1016/j.foodqual.2022.104787
Tarahi, M. (2024). The Potential Application of Mung Bean (Vigna radiata L.) Protein in Plant‐Based Food Analogs: A Review. Legume Science, 6(4), e70011. https://doi.org/10.1002/leg3.70011
Tilman, D., & Clark, M. (2014). Global diets link environmental sustainability and human health. Nature, 515(7528), 518–522. https://doi.org/10.1038/nature13959
Van, E. J., Hoefkens, C., & Verbeke, W. (2017). Healthy, sustainable and plant-based eating: Perceived (mis) match and involvement-based consumer segments as targets for future policy. Food Policy, 69, 46–57. https://doi.org/10.1016/j.foodpol.2017.03.001
Venkatachalam, M., & Sathe, S. K. (2006). Chemical Composition of Selected Edible Nut Seeds. Journal of Agricultural and Food Chemistry, 54(13), 4705–4714. https://doi.org/10.1021/jf0606959
Wall, B. (2025). The Economic Dynamism and Societal Benefits of Deep Connect Value in AI, Biosimilars, Plant-Based Foods and the Shared Economy. Biosimilars, Plant-Based Foods and the Shared Economy (), 1-36. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5287762
Xu, X., Sharma, P., Shu, S., Lin, T.-S., Ciais, P., Tubiello, F. N., Smith, P., Campbell, N., & Jain, A. K. (2021). Global greenhouse gas emissions from animal-based foods are twice those of plant-based foods. Nature Food, 2(9), 724–732. https://doi.org/10.1038/s43016-021-00358-x
Yousaf, L., Hou, D., Liaqat, H., & Shen, Q. (2021). Millet: A review of its nutritional and functional changes during processing. Food Research International, 142, 110197. https://doi.org/10.1016/j.foodres.2021.110197
Published
Data Availability Statement
Not applicable.
Issue
Section
License
Copyright (c) 2026 Nyamhanga J. Nyagesera, Ketonze V. Ketu, Theresia P. Ngungulu, Sebastian S. Mosha, Ndi B. Bongjo, Gilbert G. M. Manga (Author)

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

































