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AMI Foundation Reaffirms Safety of Nitrite, Processed MeatsMonday, August 2, 2010
Refutes weak study suggesting link between processed meat and bladder cancer
Washington, D.C., August 2, 2010 – The American Meat Institute Foundation (AMIF) said a study published today in the journal Cancer that links nitrite and nitrate intake from processed meats to a potential increased risk of bladder cancer is the latest example of “nutrition whiplash” facing consumers. AMIF President James H. Hodges said the study creates needless confusion rather than providing clarity to the complex issue of diet and its effect on health.
Hodges emphasized that processed meat continues to be part of a healthy, balanced diet and nutrition decisions should be based on the total body of evidence – not on one study that stands in contrast to the full body of research.
The study erroneously perpetuates the myth
that cured meats are the main source of
ingested nitrite. The fact is that less than
five percent of ingested nitrite comes from
cured meats. Ninety-three percent comes from
vegetables like lettuce, spinach, celery,
cabbage and beets and from our own
saliva. In fact, research conducted in
the last 20 years had concluded that the body
makes nitrite as part of its healthy, normal
In addition, the U.S. National Toxicology Program (NTP), which is considered the “gold standard” in determining whether substances cause cancer, completed a multi-year study in which rats and mice were fed high levels of sodium nitrite. The study found that nitrite was not associated with cancer. NTP maintains a list of chemicals found to be carcinogenic. Sodium nitrite is not on that list.
Hodges noted that this is an epidemiological study, which by itself is not sufficient to establish cause and effect. Rather, this type of study allows researchers to identify associations that may merit further study.
Even the authors of the study state that the findings of their research are “tentative,” the relationship between dietary nitrite and nitrate was of “borderline statistical significance,” and “not enough data was available to draw conclusive findings.”
Refuting even those modest assertions, Hodges said, “This study did not achieve the standard scientific threshold that would generate any concern at all, and it has already come under intense scrutiny from the scientific community because there is no data presented that is statistically significant by conventional statistical rules.”
Hodges concluded by saying, “All of these studies struggle to disentangle other lifestyle and dietary habits from meat and processed meat and admit that they can't do it well enough to use their conclusions to accurately recommend people change their dietary habits. What the total evidence has shown, and what common sense suggests, is that a balanced diet and a healthy body weight are the keys to good health. Meat contains protein, amino acids and essential nutrients like iron and zinc that can and should be part of a healthy, balanced diet and lifestyle.”
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