borofergie
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desidiabulum said:Hang on, surely saturated fats isn't the only issue here? I thought processed meats are bad for your health because of high levels of sodium, nitrate levels reducing insulin production, higher risk of stomach and pancreatic cancer (wasn't there some Swedish research on this?), etc - and that THOSE are the reasons why we are advised to have no more than one portion of processed meats a week.
Correct me if I'm wrong (I'm sure you all will!)
I don't think there is any good quality data on any of this.
The nitrates thing is a myth:
http://chriskresser.com/the-nitrate-and ... fear-bacon
It may surprise you to learn that the vast majority of nitrate/nitrite exposure comes not from food, but from endogenous sources within the body. (1) In fact, nitrites are produced by your own body in greater amounts than can be obtained from food, and salivary nitrite accounts for 70-90% of our total nitrite exposure. In other words, your spit contains far more nitrites than anything you could ever eat.
When it comes to food, vegetables are the primary source of nitrites. On average, about 93% of nitrites we get from food come from vegetables. It may shock you to learn that one serving of arugula, two servings of butter lettuce, and four servings of celery or beets all have more nitrite than 467 hot dogs. (2) And your own saliva has more nitrites than all of them! So before you eliminate cured meats from your diet, you might want to address your celery intake. And try not to swallow so frequently.
All humor aside, there’s no reason to fear nitrites in your food, or saliva. Recent evidence suggests that nitrites are beneficial for immune and cardiovascular function; they are being studied as a potential treatment for hypertension, heart attacks, sickle cell and circulatory disorders. Even if nitrites were harmful, cured meats are not a significant source, as the USDA only allows 120 parts per million in hot dogs and bacon. Also, during the curing process, most of the nitrite forms nitric oxide, which binds to iron and gives hot dogs and bacon their characteristic pink color. Afterwards, the amount of nitrite left is only about 10 parts per million.
Sodium intake is only weakly correltated with blood pressure:
http://www.nytimes.com/2012/06/03/opini ... d=all&_r=0
And the whole "cancer" thing is based on epidimiological studies that are really only fit for forming hypotheses (to be validated in proper trials), rather than condemning one food stuff or another. There are many confounding factors: people who ignore the conventional advice and continue eating red meat and bacon tend to be the same people that reject the conventional advice about exercise, drinking and smoking too.
http://www.marksdailyapple.com/will-eat ... z2AbyJyx9s
http://garytaubes.com/2012/03/science-p ... -and-meat/