Eating healthy foods does cut your risk of cancer, a major study has found. Food high in salt, sugar and fat resulted in cancer rates up to 11 per cent higher than those who eat healthier diets, research into nearly half a million adults found.
Traffic light system
The research used Britain’s pioneering ‘traffic light’ food system – which makes it simple for consumers to know if foods are healthy or not. Among the kinds of foods considered unhealthy by the study are cakes, biscuits, puddings, lasagne, tomato ketchup and red and processed meat.
The research used the British Food Standards Agency system which flags up if a food has an unhealthy level of fat, saturated fat, sugar, or salt by giving it a red, amber or green rating. Every food has an overall score. The results found that people who ate food with healthier scores had a lower chance of cancer, while people whose food had a poorer score had a ‘higher risk of total cancer’.
Higher cancer rates were specifically found in colon cancer, the upper digestive tract and stomach for all subjects. Men were also more likely to get lung cancer, while women were more likely to get liver and post-menopausal breast cancer.
Lead researcher Melanie Deschasaux of the French National Institute for Health and Medical Research (INSERM) said the results showed that the traffic light system of front of pack labels were ‘relevant’ for public health to help consumers make healthier food choices to prevent cancer and other chronic diseases.
Dietary Choices
The researchers looked at the self-reported dietary choices of 471,495 adults including more than 74,000 from the United Kingdom in Oxford and Cambridge. The researchers said that the participants in Cambridge, as well as in France and Germany were more likely to make poor choices of food. While those in Oxford, which included larger numbers of vegetarians as well as people living in Greece, Italy, Spain, and Norway were more ‘health conscious’. People living in Denmark and the Netherlands were in the middle of the range.
The researchers said in the research published in PLOS Medicine: ‘In this large multinational European cohort, those consuming on average food products with a lower nutritional quality, were at higher risk of developing cancer overall.’
Professor Tom Sanders, nutrition expert at King’s College London, said: ‘The paper refers to the diets with high scores as being of low nutritional quality. However, it is important to stress that diets with higher scores cannot accurately be described as nutritionally inadequate or being ‘junk food’, as high score foods include things like beef burgers and cheddar cheese. Even nutritionally adequate diets (i.e. those that meet all nutrient requirements) may increase risk of cancer especially if they contain carcinogens or are eaten in excess.
But he said that the increase in cancer of 11 per cent among people who ate unhealthy diets was less than a previous study that found a 35 per cent increased risk of cancer in a similar group.
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