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A new study published in BMJ can not tell you exactly how many meat OK to eat to maintain good health or prevent illness
But it helps to classify a large-picture, and perhaps more importantly, question: What does a healthy eating pattern look like?
A diet that includes many peanuts, seeds, fish, vegetables and whole grains – and perhaps up to one egg a day – will appear to be better than a rich red-meat diet, especially processed meat such as bacon and hot dogs.
There is already a large body of link evolution links to red meat at higher risk of heart disease, Type 2 diabetes and some cancers.
And this new study, which includes about 80,000 men and women, indicates that limiting red and processed meat can help reduce the risk of early death.
"We have told our participants' eating habits for decades," explains author Frank Hu, nutrition department at Harvard TH Chan School of Public Health. It allows Hu and his colleagues to compare people whose  increased their meat and processed meat over time with solid uses. Generally, adults in the U.S. uses one service each day.
Generally, people increased their use of meat processed by 3.5 servings a week had about 13 percent higher risk of death during the eight year follow -to study.
"We estimate that when people replace red and processed meat with peanuts, seeds, fish [and other alternatives sources of protein, as well as vegetables and whole grains] they experience more than 10 percent reduction in their risk of dying "during the follow-up, Hu explained. ] I asked Tom Sherman, a professor at Georgetown University to teach nutrition to medical students, to view the study. "At first, I thought, 'oh no, another paper shows that eating red meat is bad, & # 39;" Sherman wrote by email. "But in fact, this one is somewhat interesting" because it looks at behavioral changes.
"Behavior changes are quite ill, and diagnostic," Sherman says. He said changes may signal that someone starts paying attention to someone's diet – or starts actively ignoring it. And these changes "continue to have positive or negative effects, respectively, at their risk for severe illness: obesity, diabetes, hypertension, heart disease and cancer," he said.
This is an observational study, so it can not prove the cause and effect between diet and death. But it can establish an organization. Sherman said that a drawback of all observational nutrition studies is difficult to eliminate the independent effects of changes in meat consumption from other lifestyle factors such as body weight, exercise, drinking alcohol, etc. But new findings are consistent with the larger body
Hu said that in this new study, as well as in previous research, the dangers associated with red meat consumption are higher – and most pronounced – with processed red meat.
Meats often contain high amounts of sodium and preservatives, "Hu says. In addition, cooking techniques of high heat, such as grilling, can produce carcinogens. Recent research is linked to high red meat consumption – especially processed meat – with more diversity and abundance of healthy bacteria in the gut. "This may contribute to higher risk," Hu said.
Sherman said, "I always deliberate myself before sharing data on red and processed consumption of meat and mortality, CVD [cardiovascular disease] or cancer risks to my students because it sounds so incredible -become scary. "
" Unfortunately, "he said," it seems to be accurate. "