A study by Cornell University and Northwestern University found that the risk of cardiovascular disease and premature death increases between 3 and 7% for people who eat two or more servings of red meat and processed meat a week.
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Processed meat, unprocessed red meat, poultry and fish are major components of the diet of countries such as the United States. They represent more than 40% of protein intake, 42% of dietary cholesterol intake and 26% of total energy intake in adults.
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Is the consumption of processed meat, unprocessed red meat, poultry or fish associated with cardiovascular disease? In October 2019, an international group of nutritionists from the United States and the United Kingdom called NutriRECS published five studies in the medical journal of the American College of Physicians called “Annals of Internal Medicine” that concluded that there was “no certainty that eating red meat or processed meat causes cancer, diabetes or heart disease. ”
Some experts, such as Dr. Frank Hu, from the Harvard Department of Nutrition, were concerned with that study. “This is a very irresponsible public health recommendation,” he told CNN. “There is substantial evidence that processed meat can cause bowel cancer, so much so that the World Health Organization has classified it as a carcinogen since 2015.”
The NutriRECS published a nutritional guide where it said there was no need to reduce the consumption of red meat or processed meat to prevent cancer, contradicting nutritional guidelines of the WHO, the National Health Service of the United Kingdom, the American Cancer Society and from the American Heart Association, who have noticed the relationship between excess consumption of processed meats such as ham, bacon, sausages and salamis with colorectal cancer.
To resolve the controversy, researchers from the Division of Nutritional Sciences, Cornell University (New York) and the Department of Preventive Medicine at Northwestern University (Chicago) published a study in the journal JAMA International Medicine, which found a 3% to 7% higher risk of cardiovascular disease and premature death for people who ate two servings of red meat and processed meat each week. It seems little but it is relevant if we consider that an average person in America consumes red meat four times a week.
In this study, the eating habits of 29,682 American adults were followed. “The intake of processed meat, unprocessed red meat or poultry was significantly associated with incident cardiovascular disease, but fish intake was not. The intake of processed meat or unprocessed red meat was significantly associated with mortality from all causes, but not the intake of poultry or fish, ”the researchers conclude.
“The increase in absolute risk is so small that it is unlikely to be relevant to the individual. However, at the population level, this is more important. With approximately 1 million people diagnosed with heart disease each year, even a small reduction in absolute risk can have a considerable effect and reduce the number of people who suffer, ”said Gunter Kuhnle, professor of nutrition and food science at the University of Reading in the United Kingdom, in a statement reviewed by CNN.
The study also found a 4% higher risk of cardiovascular disease for people who ate two servings per week of poultry. The study admits that it did not ask if the chicken had skin, was fried or breaded or boiled, so they are not enough to recommend a level of intake.
According to CNN, the researchers did say that fried foods, including chicken and fish, should be avoided because deep frying can contribute to trans fatty acids, and the intake of fried fish has been positively related to chronic diseases.
“These findings suggest that, among US adults. UU., A higher intake of processed meat, unprocessed red meat or poultry, but not fish, was significantly associated with a small increase in the risk of incident cardiovascular disease, while a higher intake of processed meat or unprocessed red meat , but not poultry or fish, was significantly associated with a small increase in the risk of mortality from all causes. These findings have important implications for public health and should justify further research, ”say the researchers in the study.
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2020-02-07T15: 32: 13-05: 00
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2020-02-07T16: 20: 59-05: 00
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Excess red and processed meats are not good for health, according to new study
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