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Eating red and processed meat -- what do scientists say?

Recent perspective paper in Meat Science cautions about uncertainties in scientific evidence

2014-03-07
(Press-News.org) Oxford, March 6, 2014 -- Recent reports warn about a link between eating red and processed meat and the risk of developing cancer in the gut. These reports have resulted in new nutritional recommendations that advise people to limit their intake of red and processed meats. A recent perspective paper, authored by 23 scientists, published in the latest issue of journal Meat Science underlines the uncertainties in the scientific evidence and points to further research needed to resolve these issues and improve the foundation for future recommendations on the intake of red meat.

The review discusses recent studies on associations between red and processed meat intake and cancer risk in humans and animals. In animals it is possible to promote cancer by giving the animals a chemical cancer challenge and a basic "standard" diet that is high in meat, but doesn't contain any ingredients that protect and can help the gut stay healthy. This means no vegetables, no fiber, no milk or other sources of calcium. In other words, the "standard" diet of the lab animals is not very comparable to that of humans. The many differences between diets for humans and laboratory animals may explain why the results seem to differ: in humans, the observed association between red and processed meat intake and cancer is relatively small in magnitude, but consistent, and may still present a serious public health impact. The 23 researchers conclude that other foods, in cooperation with the bacteria that live in the gut, may protect the gut so any potential adverse effects of meat may become less pronounced or may even be fully prevented.

The team of scientists further concludes that science does not yet have a full understanding of how food that we eat affects our gut and our health. To get a better grip on this complex issue, it is necessary that improved measures of how much meat people eat, the composition of the meat they eat, and how this affects the risk that cancer develops. At the same time, efforts to make meat healthier in general need to continue.

INFORMATION: The paper is published open access in Meat Science, is the result of an international workshop held in Oslo, Norway in November 2013, "How can we approach consensus on the healthiness of red meat?". The international team of researchers was coordinated by the Norwegian University of Life Sciences, in connection with the international research program 'The Ecology of Food Perception' at the Centre for Advanced Study at the Norwegian Academy of Science and Letters in Oslo.

The paper is available for free on ScienceDirect.

Notes for editors Authors, Marije Oostindjer marije.oostindjer@nmbu.no, telephone: +47 2212252 and Bjørg Egelandsdal bjorg.egelandsdal@nmbu.no +47 221 22526, are available for questions from journalists.

About Meat Science Meat Science is a leading food science journal which focuses on the qualities of meat – its composition, nutritional value, wholesomeness and consumer acceptability. For further information on the aims and scope and impact factor of the journal go to visit: http://www.journals.elsevier.com/meat-science

About Elsevier Elsevier is a world-leading provider of scientific, technical and medical information products and services. The company works in partnership with the global science and health communities to publish more than 2,000 journals, including The Lancet and Cell, and 25,000 book titles, including major reference works from Mosby and Saunders. Elsevier's online solutions include ScienceDirect, Scopus, SciVal, Reaxys, ClinicalKey and Mosby's Suite, which enhance the productivity of science and health professionals, helping research and health care institutions deliver better outcomes more cost-effectively.

A global business headquartered in Amsterdam, Elsevier employs 7,000 people worldwide. The company is part of Reed Elsevier Group PLC, a world leading provider of professional information solutions in the Science, Medical, Legal and Risk and Business sectors, which is jointly owned by Reed Elsevier PLC and Reed Elsevier NV. The ticker symbols are REN (Euronext Amsterdam), REL (London Stock Exchange), RUK and ENL (New York Stock Exchange).

Media contact Simon Jones
+44 1865 843181
Elsevier
ms.jones.1@elsevier.com


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[Press-News.org] Eating red and processed meat -- what do scientists say?
Recent perspective paper in Meat Science cautions about uncertainties in scientific evidence