Eating a portion of processed red meat daily can boost a person’s risk of dying young by up to 20 per cent,said a long-running US study of more than 1,20,000 people released.
While the research by Harvard University experts offers more evidence that eating red meat increases the risk of heart disease and cancer,it also counsels that substituting fish and poultry may lower early death risk.
This study provides clear evidence that regular consumption of red meat,especially processed meat,contributes substantially to premature death, said Frank Hu,senior author of the study in the Archives of Internal Medicine yesterday.
Researchers gleaned their data from a study of 37,698 men who were followed for 22 years and 83,644 women who were tracked for 28 years.
Subjects answered surveys about their eating habits every four years.
Those who ate a card-deck-sized serving of unprocessed red meat each day on average saw a 13 per cent higher risk of dying than those who did not eat red meat as frequently.
And if the red meat was processed,like in a hot dog or two slices of bacon,that risk jumped to 20 per cent.
However,substituting nuts for red meat lowered total mortality risk by 19 per cent,while poultry or whole grains lowered the risk 14 per cent and fish did so by seven per cent.
The authors said between seven and nine per cent of all deaths in the study could be prevented if all the participants consumed fewer than 0.5 servings per day of total red meat.
Processed red meat has been shown to contain ingredients such as saturated fat,sodium,nitrites and some carcinogens that are linked to many chronic ailments including heart disease and cancer.
More than 75 per cent of the $ 2.6 trillion in annual US health care costs are from chronic disease, said an accompanying commentary by Dean Ornish,a physician and dietary expert at the University of California,San Francisco.
Eating less red meat is likely to reduce morbidity from these illnesses,thereby reducing health care costs.