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Winnipeg Free Press - PRINT EDITION
Researcher contends meat may be essential
2 But I'm a cocktail-before-dinner guy, and hell will freeze over before I give up steak. Now, I've found an ally in Prof. Duo Li, professor of nutrition at Zhejiang University, Hangahou, China.
Li reports in the Journal of Agriculture and Food Chemistry my veggie friends may be lacking in iron, zinc, vitamin B-12 and essential omega-3 fatty acids. These nutrients are needed for cardiovascular health.
So how does the lack of these nutrients affect cardiovascular health? Platelets, tiny particles in the blood, help clotting. Vegetables show an increased number of platelets resulting in greater chance they'll stick together, causing a fatal blood clot in coronary arteries.
Vegetables also produce an increased amount of homocysteine in the blood. This has been associated with increased risk of heart disease. And Li's study shows the vegetarian diet results in a decreased amount of high-density lipoprotein (the good cholesterol), also a risk factor for cardiovascular disease.
I have to admit some authorities disagree with Dr Li. This is to be expected as there are no 100 per cent solutions. But I believe Aristotle to be right when he preached moderation in all things (I'm sure he would have included a cocktail before dinner).
So I believe a moderate amount of steak makes more sense than a totally veggie diet. After all, humans have been enjoying meat since the caveman discovered it could keep him and his mate alive.
I also eat meat because I've never enjoyed spinach. I'd have to eat three cups of spinach to obtain the same amount of iron contained in a six-ounce sirloin steak. Meat is also rich in "heme" iron, the type more easily absorbed than "non- heme" iron. So it's a no-brainer for me.
Today, iron is a nutrient often lacking in North American diets. Young children, teenagers, pregnant women, nursing mothers and athletes are at particular risk. The recommended allowance for iron is 18 milligrams a day, yet the typical diet contains only six mg.
Meat is a complete protein containing all the essential amino acids required for maintaining body tissues. Our bodies do not manufacture amino acids to keep the immune system functioning.
In addition, meat contains vitamins B-6, B-12, five of the B-complex vitamins, niacin, phosphorus and zinc. Many people do not consume sufficient zinc required for growth, night vision and the manufacture of hormones.
If you're concerned about calories, a six-ounce tenderloin steak trimmed of fat has 6.0 grams of fat, and provides only 366 calories. Compare this to a roasted chicken, skin included, that has 23 grams of fat.
What about the cholesterol in steaks, since so many people suffer from "cholesterolphobia"? Some people claim this is why they eat only chicken and fish. But a six-ounce steak only contains 146 mg of cholesterol.
So why do I order a blue steak? By doing so, I face a small risk of toxoplasmosis, a parasitic disease. I'll take my chance on this one as 40 per cent of North Americans have had this disease at one time or another, are unaware of its presence and require no treatment.
Most people are also not aware that a blue steak can help to protect the heart. Meat is one of the primary sources of co-enzyme Q10 (Co-Q10). This enzyme is essential, producing the body's fundamental unit of energy, ATP, the gas that provides energy for the heart. A steak well-done not only tastes like leather, but it destroys Co-Q10. Cholesterol-lowering drugs also destroy this enzyme by as much as 40 per cent, which may be setting the stage for heart failure later in life.
"So, waiter, I prefer my steak rare!"
info@docgiff.com
Republished from the Winnipeg Free Press print edition November 30, 2012 A23
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