Acceptance of A2 milk and its implications for the dairy sector and trends in consumption of milk and plant-based beverages
DOI:
https://doi.org/10.4025/actascianimsci.v48.i1.75652Palavras-chave:
beta-casein; dairy cattle farming; dairy products; dietary dysfunction; vegetable milk.Resumo
Conventional bovine milk contains both A1 and A2 β-caseins, with A1 being associated with dietary dysfunctions. Consequently, A2 milk and plant-based beverages have gained prominence. This study aimed to analyse consumption trends of bovine milk and plant-based beverages, as well as the acceptance of A2 milk and its implications for the dairy sector. An online questionnaire was disseminated via digital platforms over a 15-day period, resulting in 145 valid responses. Hierarchical Cluster Analysis (HCA), using Ward’s method, identified three clusters, which were characterised using descriptive statistics. Most participants were female, aged between 20 and 29 years, and held higher education qualifications. Bovine milk consumption predominated in clusters 1 and 2, whereas cluster 3 exhibited the lowest consumption, correlating with a higher incidence of dietary dysfunctions following consumption. Awareness of A2 milk remains limited, and 22% of participants indicated a tendency to substitute conventional milk with plant-based beverages in cases of dietary dysfunctions. It is concluded that knowledge about A2 milk and its availability in the market are limited, which encourages its replacement by plant-based beverages. However, when price is not a factor, consumers show a preference for A2 milk.
Downloads
Referências
Adamczyk, D., Jaworska, D., Affeltowicz, D., & Maison, D. (2022). Plant-based dairy alternatives: consumers’ perceptions, motivations, and barriers — results from a qualitative study in Poland, Germany, and France. Nutrients, 14(10), 2171-2185. https://doi.org/10.3390/nu14102171
Afzal, F., Yunfei, S., Sajid, M., & Afzal, F. (2019). Market sustainability: a perspective of globalization and consumer culture in the Chinese retail market. Sustainability, 1(3), 575-599. https://doi.org/10.3390/su11030575
Alfonso, L., Urrutia, O., & Mendizabal, J. A. (2019). Conversión de las explotaciones de vacuno de leche a la producción de leche A2 ante una posible demanda del mercado: posibilidades e implicaciones. ITEA — Información Técnica Económica Agraria, 115(3), 231-251. https://doi.org/10.12706/itea.2019.001
Auestad, N., & Layman, D. K. (2021). Dairy bioactive proteins and peptides: a narrative review. Nutrition Reviews, 79(suppl 2), 36-47. https://doi.org/10.1093/nutrit/nuab097
Baker, M. T., Lu, P., Parrella, J. A., & Leggette, H. R. (2022). Consumer acceptance toward functional foods: a scoping review. International Journal of Environmental Research and Public Health, 19(3), 1217-1257. https://doi.org/10.3390/ijerph19031217
Barrios, E. X., Bayarri, S., Carbonell, I., Izquierdo, L., & Costell, E. (2008). Consumer attitudes and opinions toward functional foods: a focus group study. Journal of Sensory Studies, 23(4), 514-525. https://doi.org/10.1111/j.1745-459X.2008.00169.x
Baudry, J., Péneau. S., Allès, B., Touvier, M., Hercberg, S., Galan, P., Amiot, M-J., Lairon, D., Méjean, C., & Kesse-Guyot, E. (2017). Food choice motives when purchasing in organic and conventional consumers: focus on concerns (the NutriNet-Santé cohort study). Nutrients, 9(2), 88-105. https://doi.org/10.3390/nu9020088
Bentivoglio, D., Finco, A., Bucci, G., & Staffolani, G. (2020). Is there a promising market for A2 milk? Analysis of Italian consumer preferences. Sustainability, 12(17), 6763-6779. https://doi.org/10.3390/su12176763
Bimbo, F., Bonanno, A., Nocella, G., Viscecchia, R., Nardone, G., De Devitiis, B., & Carlucci, D. (2017). Consumer acceptance and preferences for modified and functional dairy products in nutrition: a systematic review. Appetite, 113(1), 141-154. https://doi.org/10.1016/j.appet.2017.02.031
Bisutti, V., Pegolo, S., Giannuzzi, D., Mota, L. F. M., Vanzin, A., Toscano, A., Trevisi, E., Marsan, P. A., Brasca, M., & Cecchinato. A. (2022). The allelic variant of β-casein (CSN2) A2 alters the milk protein profile and slightly worsens coagulation properties in Holstein cows. Journal of Dairy Science, 105(5), 3794-3809. https://doi.org/10.3168/jds.2021-21537
Boccia, F., & Sarnacchiaro, P. (2018). The impact of corporate social responsibility on consumer preference: a structural equation analysis. Corporate Social Responsibility and Environmental Management, 25(2), 151-163. https://doi.org/10.1002/csr.1446
Bogahawaththa, D., Ashraf, R., Chandrapala, J., Donkor, O., & Vasiljevic, T. (2018). In vitro immunogenicity of various native and thermally processed bovine milk proteins and their mixtures. Journal of Dairy Science, 101(10), 8726-8736. https://doi.org/10.3168/jds.2018-14488
Brooke-Taylor, S., Dwyer, K., Woodford, K., & Kost, N. (2017). Systematic review of the gastrointestinal effects of A1 compared with A2 β-casein. Advances in Nutrition, 8(5), 739-748. https://doi.org/10.3945/an.116.013953
Carfora, V., Cavallo, C., Caso, D., Del Giudice, T., De Devitiis, B., Viscecchia, R., Nardone, G., & Cicia, G. Explaining consumer buying behavior for organic milk: including confidence and green self-identity within planned behavior theory. Food Quality and Preference, 76, 1-9. https://doi.org/10.1016/j.foodqual.2019.03.006
Dantas, A., Kumar, H., Prudencio, E. S., De Avila, L. B. Junior, Orellana-Palma, P., Dosoky, N. S., Nepovimova, E., Kuča, K., Cruz-Martins, N., Verma, R., Manickam, S., Valko. M., & Kumar, D. (2023). An approach on detection, quantification, technological properties, and trends market of A2 cow milk. Food Research International, 167(1), 112690. https://doi.org/10.1016/j.foodres.2023.112690
De Gaudry, D. K., Lohner, S., Schmucker, C., Kapp, P., Motschall, E., Horrlein, S., Röger, C., & Meerpohl, J. J. (2019). Milk A1 P-casein and health-related outcomes in humans: a systematic review. Nutrition Reviews, 77(5), 278-306. https://doi.org/10.1093/nutrit/nuy063
Deth, R., Clarke, A., Ni, J., & Trivedi, M. (2016). Clinical evaluation of glutathione concentrations after consumption of milk containing different subtypes of β-casein: results from a randomized, cross-over clinical trial. Nutrition Journal, 15(82), 1-6. https://doi.org/10.1186/s12937-016-0201-x.
Diplock, A. T., Aggett, P. J., Ashwell, M., Bornet, F., Fern, E. B., & Roberfroid, M. B. (1999). Scientific concepts in functional foods in Europe: consensus document. British Journal of Nutrition, 81(Suppl 1), 1-27.
Eldesouky, A., Mesias, F. J., & Escribano, M. (2020). Consumer assessment of sustainability traits in meat production. A choice experiment study in Spain. Sustainability, 12(10), 4093-4109. https://doi.org/10.3390/su12104093
Facioni, M. S., Raspini, B., Pivari, F., Dogliotti, E., & Cena, H. (2020). Nutritional management of lactose intolerance: the importance of diet and food labelling. Journal of Translational Medicine, 18(260), 1-9. https://doi.org/10.1186/s12967-020-02429-2
Fernández-Rico, S., Mondragón, A. C., López-Santamarina, A., Cardelle-Cobas, A., Regal, P., Lamas, A., Ibarra, I. R., Cepeda, A., & Manuel Miranda, J. (2022). A2 milk: new perspectives for food technology and human health. Foods, 11(16), 2387-2407. https://doi.org/10.3390/foods11162387
Ferreira, A. G. G., Lyra, D. G., Silva, J. C. S., Soares, F. M. F., & Araújo, C. A. (2017). Perfil dos consumidores de leite bovino in natura no município de Santana do Ipanema - Alagoas. Nutritime, 14(4), 6056-6062.
Fiorentini, M., Kinchla, A.J., & Nolden, A. A. (2020). Role of sensory evaluation in consumer acceptance of plant-based meat analogs and meat extenders: a scoping review. Foods, 9(9), 1334-1349. https://doi.org/10.3390/foods9091334
Foroutan, A., Guo, A. C., Vazquez-Fresno, R., Lipfert, M., Zhang, L., Zheng, J., Badran, H., Budinski, Z., Mandal, R., Ametaj, B. N., & Wishart, D. S. (2019). Chemical composition of commercial cow’s milk. Journal of Agricultural and Food Chemistry, 67(17), 4897–4914. https://doi.org/10.1021/acs.jafc.9b00204
Budinski, Z., Mandal, R., & Wishart, D. S. (2019). Chemical composition of commercial cow's milk. Journal of Agricultural and Food Chemistry, 67(10), 4897-4914. https://doi.org/10.1021/acs.jafc.9b00204
Forsgård, R. A. (2019). Lactose digestion in humans: Intestinal lactase appears to be constitutive whereas the colonic microbiome is adaptable. The American Journal of Clinical Nutrition, 110(2), 273-279, 2019. https://doi.org/10.1093/ajcn/nqz104
Frewer, L., Scholderer, J., & Lambert, N. (2003). Consumer acceptance of functional foods: Issues for the future. Brazilian Journal of Food Technology, 105(10), 714-731. https://doi.org/10.1108/00070700310506263
Gehring, J., Touvier, M., Baudry, J., Julia, C., Buscail, C., Srour, B., Hercberg, S., Péneau, S., Kesse-Guyot, E., & Allès, B. (2021). Consumption of ultra-processed foods by pesco-vegetarians, vegetarians, and vegans: Associations with duration and age at diet initiation. The Journal of Nutrition, 151(1), 120-131. https://doi.org/10.1093/jn/nxaa196
Giacalone, D., Clausen, M. P., & Jaeger, S. R. (2022). Understanding barriers to consumption of plant-based foods and beverages: Insights from sensory and consumer science. Current Opinion in Food Science, 48(1) 1-9. https://doi.org/10.1016/j.cofs.2022.100919
Guantario, B., Giribaldi, M., Devirgiliis, C., Finamore, A., Colombino, E., Capucchio, M. T., Evangelista, R., Motta, V., Zinno, P., Cirrincione, S., Antoniazzi, S., Cavallarin, L., & Roselli, M. (2020). A Comprehensive Evaluation of the Impact of Bovine Milk Containing Different Beta-Casein Profiles on Gut Health of Ageing Mice. Nutrients, 12(7). https://doi.org/10.3390/nu12072147
Haas, R., Schnepps, A., Pichler, A., & Meixner, O. (2019). Cow milk versus plant-based milk substitutes: a comparison of product image and motivational structure of consumption. Sustainability, 11(18), 5046-5071. https://doi.org/10.3390/su11185046
He, M., Jianqin, S., Qin, J. Z., & Xin, Y. Y. (2017). Effects of cow's milk beta-casein variants on milk intolerance symptoms in Chinese adults: a multicenter, randomized, controlled study. Journal of Nutrition, 16(72) 1-12. https://doi.org/10.1186/s12937-017-0275-0
Jianqin, S., Leiming, X., Lu, X., Yelland, G.W., Ni, J., & Clarke, A. J. (2016). Effects of milk containing only A2 beta casein versus milk containing A1 and A2 beta casein proteins on gastrointestinal physiology, discomfort symptoms, and cognitive behavior of people with self-reported intolerance to traditional cow's milk. Nutrition Journal, 15(35), 1-16. https://doi.org/10.1186%2Fs12937-016-0147-z
Karunakaran, A. C. (2024). Lactose intolerance and milk allergy, in developments in microbiology. In T. Rana (Ed.), The microbiology, pathogenesis and zoonosis of milk borne diseases (pp. 115-134). Academic Press.
Kaskous, S. (2020). A1- and A2-milk and their effect on human health. Journal Food Engineering and Technology, 9(1), 15-21. https://doi.org/10.32732/jfet.2020.9.1.15
Kay, S.-I. S., Delgado, S., Mittal, J., Eshraghi, R. S., Mittal, R., & Eshraghi, A. A. (2021). Beneficial effects of milk with A2 β-casein protein: myth or reality? Journal of Nutrition, 151(5), 1061-1072. https://doi.org/10.1093/jn/nxaa454
Lambers, T. T., Broeren, S., Heck, J., Bragt, M., & Huppertz, T. (2021). Processing affects the formation of beta-casomorphine peptide during simulated gastrointestinal digestion in A1 and A2 milk. International Dairy Journal, 121(1), 105099. https://doi.org/10.1016/j.idairyj.2021.105099
Li, R., Ma, Y., & Jiang, L. (2022). Review: research progress of dairy sheep milk genes. Agriculture, 12(2), 169-182. https://doi.org/10.3390/agriculture12020169
Li, A., Zheng, J.; Han, X., Jiang, Z., Yang, B., Yang, S., Zhou, W., Li, C., & Sun, M. (2023). Health implication of lactose intolerance and updates on its dietary management. International Dairy Journal, 140(1), 105608. https://doi.org/10.1016/j.idairyj.2023.105608
Liu, B., Qiao, W., Zhang, M., Liu, Y., Zhao, J., & Chen, L. (2022). Bovine milk with variant β-casein types on immunological mediated intestinal changes and gut health of mice. Frontiers in Nutrition, 9(1), 1-11. https://doi.org/10.3389/fnut.2022.970685
Longhi, R., Moreno, A. C. P., Reis, A. B., Okano, W., Aragon-Alegro, L. C., & Santana, E. H. W. (2010). Perfil dos consumidores de leite cru da cidade de Arapongas – PR. Revista do Instituto de Laticínios Cândido Tostes, 373(65), 14-19.
Lopes, M., Pierrepont, C., Duarte, C. M., Filipe, A., Medronho, B., & Sousa, I. (2020). Legume beverages from chickpea and lupin, as new milk alternatives. Foods, 9(10), 1458-1474. https://doi.org/10.3390/foods9101458
Ma, K. K., Greis, M., Lu, J., Nolden, A. A., Mcclements, D. J., & Kinchla, A. J. (2022). Functional performance of plant proteins. Foods, 11(4), 594-617. https://doi.org/10.3390/foods11040594
Mccarthy, K. S., Parker, M., Ameerally, A.; Drake, S. L., & Drake, M. A. (2017). Drivers of choice for fluid milk versus plant-based alternatives: What are consumer perceptions of fluid milk? Journal of Dairy Science, 100(8), 6125-6138. https://doi.org/10.3168/jds.2016-12519
McLean, D. M., Graham, E. R. B., Ponzoni, R. W., & Mckenzie, H. A. (1984). Effects of milk protein genetic-variants on milk-yield and composition. Journal of Dairy Research, 51(4), 531-546. https://doi.org/10.1017/s0022029900032854
Mendes, M. O., Morais, M. F., & Rodriguez, J. F. (2019). A2A2 milk: brazilian consumers’ opinions and effect on sensory characteristics of Petit Suisse and Minas cheeses. Food Science and Technology, 108(1), 207-213. https://doi.org/10.1016/j.lwt.2019.03.064
Oliveira, R. O. R. G., Souza, A. B. B., Folhas, R. D., Silva, M. C., Sobreira, I. R. M., Pereira, M. S., Ferraz, J. B. S., Carvalho, M. E., Nepomuceno, L. L., Santos, H. D., Garcia, J. A. S., & Ferreira, J. L. (2022). Profile of milk consumers and determinants of A2A2 milk consumption in the Tocantins State. Brazilian Journal of Veterinary Research and Animal Science, 59(1), 1-6. https://doi.org/10.11606/issn.1678-4456.bjvras.2022.193432
Pal, S., Woodford, K., Kukuljan, S.; & Ho, S. (2015). Milk intolerance, beta-casein and lactose. Nutrients, 7(9), 7285-7297. https://doi.org/10.3390/nu7095339
Park, Y. W. (2009). Bioactive components of goat milk. In Y. M. Park, Bioactive components in milk and dairy products (pp. 43-82). Wiley‐Blackwell.
Park, Y. W., & Haenlein, G. F. W. (2017). Therapeutic, hypo-allergenic and bioactive potentials of goat milk, and manifestations of food allergy. In Y. W. Park, G. F. W. Haenlein, & W. L. Wendorff. Handbook of milk of non-bovine mammals (pp. 151-180). John Wiley & Sons, Inc.
Popova, A., Mihaylova, D., & Lante, A. (2023). Insights and perspectives on plant-based beverages. Plants, 12(19), 3345-3357. https://doi.org/10.3390/plants12193345
Regis, N. S., Barreto, D. V. S., Jesus, S. S., Santos, C. O., Garcia, R. V., & Santos, V. S. (2019). Perfil do consumidor de leite e preferência de consumo no município de Santa Inês, Bahia. Brazilian Journal of Food Research, 10(2), 66-79. https://doi.org/10.3895/rebrapa.v10n2.9209
Sanchez-Siles, L., Roman, S., Fogliano, V., & Siegrist, M. (2022). Naturalness and healthiness in ‘ultra-processed foods’: a multidisciplinary perspective and case study. Trends in Food Science & Technology, 129(1), 667-673. https://doi.org/10.1016/j.tifs.2022.11.009
Semwal, R., Kumar Joshi, S., Badoni Semwal, R., Sodhi, M.; Upadhyaya, K., & Semwal, D. K. (2022). Effects of A1 and A2 variants of β-casein on human health — Is β-casomorphin-7 really a harmful peptide in cow's milk? Nutrire, 47(8). 1-12. https://doi.org/10.1186/s41110-022-00159-7
Short, E. C., Kinchla, A. J., & Nolden, A. A. (2021). Plant-based cheeses: a systematic review of sensory evaluation studies and strategies to increase consumer acceptance. Foods, 10(4), 725-737. https://doi.org/10.3390/foods10040725
Singh, M., Singh, V., & Friesen, C. A. (2020). Colonic mucosal inflammatory cells in children and adolescents with lactase deficiency. Pathology, Research and Practice, 216(6), 152971. https://doi.org/10.1016/j.prp.2020.152971
Siró, I., Kápolna, E., Kápolna, B., & Lugasi, A. (2008). Functional food. Product development, marketing and consumer acceptance—a review. Appetite, 51(3), 456-467. https://doi.org/10.1016/j.appet.2008.05.060
Sobczak, M., Sałaga, M., Storr, M.A., & Fichna, J. (2014). Physiology, signaling, and pharmacology of opioid receptors and their ligands in the gastrointestinal tract: current concepts and future perspectives. Journal of Gastroenterology, 49(1), 24-45. https://doi.org/10.1007/s00535-013-0753-x
Storhaug, C. L., Fosse, S. K., & Fadnes, L. T. (2017). Country, regional, and global estimates for lactose malabsorption in adults: a systematic review and meta-analysis. Lancet Gastroenterology & Hepatology, 2(10), 738-746. https://doi.org/10.1016/S2468-1253(17)30154-1
Summer, A., Frangia, F., Marsan, P. A., Noni, I., & Malacarne, M. (2020). Occurrence, biological properties, and potential effects on human health of β-casomorphine 7: current knowledge and concerns. Critical Reviews in Food Science and Nutrition, 60(21), 3705-3723. https://doi.org/10.1080/10408398.2019.1707157
Thiruvengadam, M., Venkidasamy, B., Thirupathi, P., Chung, I. M., & Subramanian, U. (2021). β-Casomorphine: a complete health perspective. Food Chemistry, 337(1), 127765. https://doi.org/10.1016/j.foodchem.2020.127765
Toca, M. C, Fernández, A., Orsi, M., Tabacco, O., & Vinderola, G. (2020). Intolerancia a la lactosa: mitos y verdades. Actualización. Archivos Argentinos de Pediatría, 120(1), 59-66. https://doi.org/10.5546/aap.2022.59
Topolska, K., Florkiewicz, A., & Filipiak-Florkiewicz, A. (2021). Functional food—consumer motivations and expectations. International Journal of Environmental Research and Public Health, 18(10), 5327-5341. https://doi.org/10.3390/ijerph18105327
Tso, R., & Forde, C. G. (2021). Unintended consequences: nutritional impact and potential pitfalls of switching from animal- to plant-based foods. Nutrients, 13(8), 2527-2543. https://doi.org/10.3390%2Fnu13082527
Varela, P., Arvisenet, G., Gonera, A., Myhrer, K. S., Fifi, V., & Valentin, D. (2022). Meat replacer? No thanks! The clash between naturalness and processing: an explorative study of the perception of plant-based foods. Appetite, 169(1), 1-10. https://doi.org/10.1016/j.appet.2021.105793
Walther, B., Guggisberg, D., Badertscher, R., Egger, L., Portmann, R., Dubois, S., Haldimann, M., Kopf-Bolanz, K., Rhyn, P., Zoller, O., Veraguth, R., & Rezzi, S. (2022). Comparison of nutritional composition between plant-based drinks and cow’s milk. Frontiers in Nutrition, 9(1), 1-17. https://doi.org/10.3389/fnut.2022.988707
Zingone, F., Bucci, C., Lovino, P., & Ciacci, C. (2017). Consumption of milk and dairy products: facts and figures. Nutrition, 33(1), 322-325. https://doi.org/10.1016/j.nut.2016.07.019
Žurbi, T., & Gregor-Svetec, D. (2023). Use of QR code in dairy sector in Slovenia. SAGE Open, 13(1), 1-15. https://doi.org/10.1177/21582440231177028
Downloads
Publicado
Edição
Seção
Licença
Copyright (c) 2026 Evellyn Richelly Ferreira Bastianel, Vinicius Cunha Barcellos, Carolina Naves Aroeira

Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.
DECLARAÇÃO DE ORIGINALIDADE E DIREITOS AUTORAIS
Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade.
Os direitos autorais pertencem exclusivamente aos autores. Os direitos de licenciamento utilizados pelo periódico é a licença Creative Commons Attribution 4.0 (CC BY 4.0): são permitidos o compartilhamento (cópia e distribuição do material em qualqer meio ou formato) e adaptação (remix, transformação e criação de material a partir do conteúdo assim licenciado para quaisquer fins, inclusive comerciais.
Recomenda-se a leitura desse link para maiores informações sobre o tema: fornecimento de créditos e referências de forma correta, entre outros detalhes cruciais para uso adequado do material licenciado.



