But I wonder if the results would be different if the only processed meat (cold cuts, salami, prosciutto) you ate came from antibiotic, hormone, additive, and nitrate-free meat. From Science Daily:
Men who regularly eat moderate amounts of processed red meat such as cold cuts (ham/salami) and sausage may have an increased risk of heart failure incidence and a greater risk of death from heart failure.
Processed meats are preserved by smoking, curing, salting or adding preservatives. Examples include cold cuts (ham, salami), sausage, bacon and hot dogs."Processed red meat commonly contains sodium, nitrates, phosphates and other food additives, and smoked and grilled meats also contain polycyclic aromatic hydrocarbons, all of which may contribute to the increased heart failure risk," said Alicja Wolk, D.M.Sc., senior author of the study and professor in the Division of Nutritional Epidemiology at the Institute of Environmental Medicine, Karolinska Institutet in Stockholm, Sweden. "Unprocessed meat is free from food additives and usually has a lower amount of sodium."
The Cohort of Swedish Men study -- the first to examine the effects of processed red meat separately from unprocessed red meat -- included 37,035 men 45-79 years old with no history of heart failure, ischemic heart disease or cancer.
After almost 12 years of follow-up, researchers found: - Men who ate the most processed red meat had more than a 2-fold increased risk of death from heart failure compared to men in the lowest category. - For each 50 gram (e.g. 1-2 slices of ham) increase in daily consumption of processed meat, the risk of heart failure incidence increased by 8 percent and the risk of death from heart failure by 38 percent. - The risk of heart failure or death among those who ate unprocessed red meat didn't increase.
"To reduce your risk of heart failure and other cardiovascular diseases, we suggest avoiding processed red meat in your diet, and limiting the amount of unprocessed red meat to one to two servings per week or less," said Joanna Kaluza, Ph.D., study lead author and assistant professor in the Department of Human Nutrition at Warsaw University of Life Sciences in Poland. "Instead, eat a diet rich in fruit, vegetables, whole grain products, nuts and increase your servings of fish."