Showing posts with label red and processed meats. Show all posts
Showing posts with label red and processed meats. Show all posts

Friday, July 15, 2011

Who DOES listen to the guidelines?

Some one that I care about is in the hospital recuperating from heart surgery.  In his own words, this is why he had the surgery:
"The surgery is to repair my mitral valve which is leaking severely and stressing my heart.  The surgery is long and requires being on a heart-lung machine. Mitral valve prolapse was one of the underlying conditions contributing to"    
... his brothers sudden death from arrhythmia (my dad's heart attack death was also related to an unstable arrhythmia).  My friend also told us that his arteries were clean and clear and this allowed for a laproscopic surgery which is less invasive though heart surgery is always invasive.  
The surgery is over and I have followed my friends progress on line and I visited him today. 
He let us know what his first meal was - a "lovely" tray of scrambled eggs, bacon, oatmeal, fruit, biscuit and bagel with juice and milk. 
We (you and I ) recently reviewed the Dietary Guidelines for Americans and I recall mentioning that there  was no harm in eggs for most persons, and this is true, but BACON!!  The man just had heart surgery!  Here is the paragraph from the DGA 2010 -

In addition to being a major contributor of solid fats, moderate evidence suggests an association between the increased intake of processed meats (e.g., franks, sausage, and bacon) and increased risk of colorectal cancer and cardiovascular disease.

I told my friend to get out of there as soon as possible because his arteries were NOT going to stay clear under those conditions.

Monday, May 24, 2010

The Meat of the Matter

The red meat association with colon cancer has gained acceptance in the public health community in the last few years. The most established causal link is related to processed meats and eating meats that have been grilled at extremely high temperatures as in both cases chemical agents are created and are hazardous to the body. With colon cancer there is also a synergistic effect with a diet low in fibrous foods. There does continue to be some debate over colon cancer causation.

What has been less challenged is the deleterious effect of saturated fat in red meat, especially in regards to heart disease. A study recently published in the journal of the American Heart Association found that consumption of red meat itself did not correlate to new cases of coronary heart disease. However, there WAS a significant relationship between processed meats and heart disease and possibly diabetes as well. The concern is related to both nitrates and sodium. A high salt diet, especially as it can lead to hypertension, is damaging to artery walls and that damage - inflammation for example, can lead to plaque buildup. Processed meats include lunch meat, bacon and sausage. What did not bear out as a risk factor was eating a steak for example. However, saturated fat does increase caloric density. For that reason, serving size and frequency of consumption must be moderated. The serving size is 3-4 ounces and the frequency is just a few days a week at most. Saturated fat is a problem as is overconsumption of any nutrient which can lead to obesity and the host of problems that involves.

Take home message is that though red meat intake may not be as severe a threat as once thought, it is still something that should be moderated.

The research was one that reviewed over 20 other studies for outcomes based on the food histories of the persons involved. It is not a controlled experiment or clinical trial so the force of the conclusion is somewhat diluted. You can see the abstract of the study here.

Remember also that the AHA has many great resources on its website, including guidance to prevent heart disease in what it calls the Simple Seven.