Ultra-processed food

Ultra-processed foods are food and drink products that have undergone specified types of food processing, usually by transnational and other very large 'Big food' corporations.[1][2][3]These foods are designed to be 'convenient, eaten on the go, hyperpalatable and appealing to consumers, and, most importantly, the most profitable segment of Big Food companies’ portfolios because of these foods’ low-cost ingredients'.[1]

Definition

The concept of ultra-processed food was initially developed and the term coined by the Brazilian nutrition researcher Carlos Monteiro, with his team at the Center for Epidemiological Research in Nutrition and Health (NUPENS) at the University of São Paulo, Brazil.[4] Its rationale is that with nutrition and health now, 'the issue is not food, nor nutrients, so much as processing', and 'from the point of view of human health, at present, the most salient division of food and drinks is in terms of their type, degree, and purpose of processing'.[5]

Specifications and definitions of ultra-processed foods are available in reports published by United Nations agencies in recent years, most recently in 2019,[2][3] in the literature,[6] in the Open Food Facts database,[7] and in the media.[8]

They include:

Ultra-processed food is the fourth category in the NOVA food classification system based on the nature, extent and purpose of industrial food processing. The other three categories are:

  • Unprocessed or minimally processed food
  • Processed industrial ingredients
  • Processed foods[2][3][9][6]

Processing as such is essential, and virtually all food is processed in some way.[9] The term ultra-processing refers to the processing of industrial ingredients derived from foods by e.g. extruding, moulding, re-shaping, hydrogenation, and hydrolysis. Ultra-processed foods generally also include additives such as preservatives, sweeteners, sensory enhancers, colourants, flavours, and processing aids, but little or no whole food. They may be fortified with micronutrients. The aim is to create durable, convenient and palatable ready-to-eat or ready-to-heat food products suitable to be consumed as snacks or to replace freshly-prepared food-based dishes and meals[9][6][5]

Economics

Ultra-processed foods are often an important part of food corporation portfolios because they rely on cheap ingredients.[1]

They are designed for broad consumer appeal.[1] They are often discretionary foods, snacked rather than consumed as part of meals. Among other reasons, the inexpensive cost of their ingredients and their aggressive marketing is resulting in their rapid growth, particularly in middle income countries.[9][6]

Impacts

Epidemiological studies published since 2012 carried out in countries including Brazil, Chile, Colombia, Mexico, the USA, Canada, the UK, France, Spain, Australia, and Taiwan consistently show that increasing or high consumption of ultra-processed food is associated with reduction of diet quality or increased incidence variously of obesity or chronic non-communicable conditions and diseases such as diabetes, hypertension, heart disease, some cancers, and with earlier mortality.[2][3][6] A randomised controlled trial carried out by researchers from the US National Institutes of Health published in 2019 has found that consumption of ultra-processed foods causes increased energy intake and increased fat and total body weight[10]

Four Latin American countries — Brazil,[11] Uruguay,[12] Peru,[13] and Ecuador[14] — have so far published national official dietary guidelines that recommend avoiding ultra-processed foods. Ultra-processed foods are identified as harmful to health in a 2019 official government report from France[15] and as published in 2020 by the World Bank.[16]

Ultra-processed foods have higher environmental impacts than fresh foods.[1]

Appraisals

The utility of the NOVA classification and its concept of ultra-processing has been subject to criticism.[17][18] Most published criticisms of NOVA has come from authors associated in some way with the manufacturers of ultra-processed food, their representative organisations, or organisations they support.[19] A 2018 BMJ editorial comments:

'Ultra-processed foods is a broad (and potentially rapidly changing) food category that includes multiple foods prepared by a variety of methods and containing a myriad of nutrients and food additives[20]'

A 2019 report published by the UN Food and Agriculture Organization[2] concludes in part: 'More epidemiological research is especially needed on the impact of ultra-processed food intake on the health and well-being of infants, children and adolescents including its effects on both diet-related chronic NCDs and also on undernutrition and micronutrient deficiencies. More cohort studies on obesity, diabetes, cardiovascular diseases, various types of cancer and other diseases will enable meta-analyses of their association with ultra-processed food intake and estimation of disease-specific pooled relative risks.'

Independent assessments generally conclude that further research should guide public policies and actions, and not delay them. Such actions should include statutory — including fiscal — measures designed to make unprocessed and minimally processed food more available and affordable, to encourage consumption of freshly-prepared meals, to eliminate all subsidies and price support schemes that make ultra-processed food artificially cheap, and to regulate and restrict its manufacture and marketing.[3][6][9][5][8][11][12][13][14][15][16][21][22]

Media coverage

A French longitudinal study from the Nutri Net Santé group published in 2018[23] showing a correlation between ultra-processed food and cancer risk prompted some media outlets to run alarmist headlines claiming that eating such food may raise cancer risk, or does raise risk — these headlines were based on a common misunderstanding between correlation and causation.[24]

Media coverage of ultra-processed food, and ultra-processing and the NOVA food classification generally has been very extensive since publication beginning in 2018 of a series of French studies undertaken by the Nutri Net Santé group[25], and publication in 2019 of the US National Institutes of Health randomised controlled trial of ultra-processed food and increases in body weight and fat.[10] This includes briefings from scientific centres and expert organisations, reports in many countries on television and radio, newspapers and magazines, videos, podcasts, blogs, and commentary on the internet, some of which has been summarised and quoted.[26]

As reported on US National Public Radio and in the New York Times, senior US researchers were impressed by the National Institutes of Health study. Dariush Mozaffarian, Dean of Tufts University's Friedman School of Nutrition Science and Policy, said: ‘These are landmark findings, that processing of foods makes a huge difference in how much a person eats’. Barry Popkin, of the University of North Carolina at Chapel Hill, who like Dariush Mozaffarian was not involved in the NIH study, said: ‘The difference in weight gain for one group and weight loss for the other during these two periods is phenomenal. This is a very important study and a major challenge to the global food industry and the food science profession'.[26]

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References
  1. Scott C (May 2018). "Sustainably Sourced Junk Food? Big Food and the Challenge of Sustainable Diets". Global Environmental Politics. 18 (2): 93–113. doi:10.1162/glep_a_00458. ISSN 1526-3800.
  2. Monteiro CA, Cannon G, Lawrence M, Costa Louzada M, Pereira Machado P (2019). Ultra-processed foods, diet quality, and health using the NOVA classification system. Rome: Food and Agriculture Organisation of the United Nations.
  3. Ultra-processed food and drink products in Latin America: Sales, sources, nutrient profiles, and policy implications. Washington DC: Pan American Health Organization. 2019. ISBN 978-92-75-12032-3.
  4. "Center for Epidemiological Research in Nutrition and Public Health, University of São Paulo, Faculty of Public Health".
  5. Monteiro CA (May 2009). "Nutrition and health. The issue is not food, nor nutrients, so much as processing". Public Health Nutrition. 12 (5): 729–31. doi:10.1017/S1368980009005291. PMID 19366466.
  6. Monteiro CA, Cannon G, Moubarac JC, Levy RB, Louzada ML, Jaime PC (January 2018). "The UN Decade of Nutrition, the NOVA food classification and the trouble with ultra-processing". Public Health Nutrition. 21 (1): 5–17. doi:10.1017/S1368980017000234. PMID 28322183.
  7. "NOVA groups for food processing. A classification in 4 groups to highlight the degree of processing of foods".
  8. Wilson B (2020-02-13). "How ultra-processed food took over your shopping basket". The Guardian. ISSN 0261-3077. Retrieved 2020-04-06.
  9. Monteiro CA, Moubarac JC, Cannon G, Ng SW, Popkin B (November 2013). "Ultra-processed products are becoming dominant in the global food system". Obesity Reviews. 14 Suppl 2: 21–8. doi:10.1111/obr.12107. PMID 24102801.
  10. Hall KD, Ayuketah A, Brychta R, Cai H, Cassimatis T, Chen KY, et al. (July 2019). "Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain: An Inpatient Randomized Controlled Trial of Ad Libitum Food Intake". Cell Metabolism. 30 (1): 226. doi:10.1016/j.cmet.2019.05.020. PMID 31269427.
  11. Dietary Guidelines for the Brazilian Population (Report). Brasília: Brazilian Ministry of Health. 2014.
  12. "Guías Alimentarias para la Población Uruguaya". Montevideo: Ministerio de Salud del Uruguay. 2016.
  13. Guías Alimentarias para la Población Peruana (Report). Lima: Ministerio de Salud del Perú. 2018.
  14. Documento Técnico de las Guías Alimentarias Basadas en Alimentos (GABA) del Ecuador. GABA-ECU (Report). Quito: Ministerio de Salud Pública del Ecuador y Organización de las Naciones Unidas para la Alimentación y la Agricultura. 2018.
  15. Programme Nationale Nutrition Santé 2019-2023 (Report). République Française. Ministère des Solidarités et de la Santé. 2019.
  16. Shekar M, Popkin B, eds. (2020-02-13). Obesity: Health and Economic Consequences of an Impending Global Challenge. The World Bank. doi:10.1596/978-1-4648-1491-4. hdl:10986/32383. ISBN 978-1-4648-1491-4.
  17. Eicher-Miller HA, Fulgoni VL, Keast DR (November 2012). "Contributions of processed foods to dietary intake in the US from 2003-2008: a report of the Food and Nutrition Science Solutions Joint Task Force of the Academy of Nutrition and Dietetics, American Society for Nutrition, Institute of Food Technologists, and International Food Information Council". The Journal of Nutrition. 142 (11): 2065S–2072S. doi:10.3945/jn.112.164442. PMC 3593301. PMID 22990468.
  18. Gibney MJ, Forde CG, Mullally D, Gibney ER (September 2017). "Ultra-processed foods in human health: a critical appraisal". The American Journal of Clinical Nutrition. 106 (3): 717–724. doi:10.3945/ajcn.117.160440. PMID 28793996.
  19. Mialon M, Sêrodio P, Baeza Scagliusia F (2018-12-29). "Criticism against the NOVA classification: who are the protagonists?". World Nutrition. 9 (3): 176–240. doi:10.26596/wn.201893176-240. ISSN 2041-9775.
  20. Monge A, Lajous M (February 2018). "Ultra-processed foods and cancer". BMJ. 360: k599. doi:10.1136/bmj.k599. PMID 29444772.
  21. Moodie R, Stuckler D, Monteiro C, Sheron N, Neal B, Thamarangsi T, Lincoln P, Casswell S (12 February 2013). "Profits and pandemics: prevention of harmful effects of tobacco, alcohol, and ultra-processed food and drink industries". The Lancet. 381 (9867): 670–679. doi:10.1016/S0140-6736(12)62089-3. PMID 23410611.
  22. Swinburn BA, Kraak VI, Allender S, Atkins VJ, Baker PI, Bogard JR, et al. (February 2019). "The Global Syndemic of Obesity, Undernutrition, and Climate Change: The Lancet Commission report". Lancet. 393 (10173): 791–846. doi:10.1016/S0140-6736(18)32822-8. PMID 30700377.
  23. Fiolet T, Srour B, Sellem L, Kesse-Guyot E, Allès B, Méjean C, et al. (February 2018). "Consumption of ultra-processed foods and cancer risk: results from NutriNet-Santé prospective cohort". BMJ. 360: k322. doi:10.1136/bmj.k322. PMC 5811844. PMID 29444771.
  24. Lomangino K (15 February 2018). "'Ultra-processed' foods and cancer: Headlines show the right way, and the wrong way, to frame study results". Health News Review.
  25. "Welcome to the official website of the NutriNet-Santé Study. | Site institutionnel de l'étude NutriNet-Santé". info.etude-nutrinet-sante.fr. Retrieved 2020-04-06.
  26. O’Connor, Anahad (2019-05-16). "Why Eating Processed Foods Might Make You Fat". The New York Times. ISSN 0362-4331. Retrieved 2020-04-06.
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