Foods that fight illness


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Posted Online: Jan. 28, 2013, 9:38 am
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By Barbara Quinn
"A vitamin is a substance that makes you ill if you don't eat it," said Albert Szent-Gyorgyi, winner of the Nobel Prize in Physiology or Medicine in 1937.
He understood what we now know: Deficiencies of vitamins and other vital nutrients can cause us to fall prey to illness.
So do our food choices really influence how susceptible we are to sickness? You bet your sweet pepper they do. Specific nutrients in foods have been shown to enhance the body's ability to keep us well. Here are some tips from the Academy of Nutrition and Dietetics and other nutrition experts:
Protein: It's what immune cells are made of. Sources of immune-building protein include lean beef, pork and poultry, fish, eggs, beans and soy-based foods.
Vitamin A: Ever wonder why moms used to dose their darlings with cod liver oil to keep them healthy? Among other components, cod liver oil is a good source of vitamin A—-a nutrient that helps maintain the cells that line our intestines and lungs. These "mucosal" cells are the sentries that guard our body from foreign invaders.
Carrots, kale, spinach, sweet potatoes and red bell peppers are good sources of vitamin A (or beta-carotene which safely converts to vitamin A in the body.)
Vitamin C: Although scientists still don't understand the exact way that vitamin C works to boost immune function, we do know this essential vitamin plays an important role in healing wounds and strengthening our resistance to disease. Vitamin C also helps form antibodies that fight off infection.
Since this essential nutrient easily is destroyed by air, heat and prolonged storage, we are smart to eat at least one high vitamin C food each day. Sources include oranges, grapefruit, strawberries, tomatoes, peppers, kiwifruit, broccoli and Brussels sprouts.
Zinc: Like an army that relies on a continual renewal of supplies and soldiers, our immune system relies on zinc to consistently renew disease-fighting cells. And since zinc in food is bound to protein, it makes sense that good sources include oysters, beef, pork and liver as well as whole grains, beans, nuts and seeds.
Interestingly, zinc has been called "the essential toxin" because — although it is required for optimal health — excessive intake actually can impair immune function.
Vitamin E: Given its antioxidant ability to neutralize free radicals, vitamin E keeps the machinery of the immune system functioning at capacity. Good sources include nuts, seeds and whole grains. Wheat germ is an especially good source of vitamin E.
What about supplements of vitamins and minerals? If we don't happen to eat a varied diet for any reason, we could be missing out on essential vitamins and trace minerals that could compromise our ability to ward off sickness, say nutrition experts. Whether or not to take a daily vitamin and mineral supplement is a discussion worth having with your health provider.












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  Today is Thursday, April 17, the 107th day of 2014. There are 258 days left in the year.

1864 -- 150 years ago: Journeymen shoemakers of Rock Island struck for higher wages yesterday morning, asking 25 percent increases. Employers have acceded to their demand.
1889 -- 125 years ago: Lighting struck wires of the Merchants Electric Light Co. during a furious storm, and many Rock Island business houses were compelled to resort to gas as a means of illumination.
1914 -- 100 years ago: Members of the First Church of Christ, Scientist, decided to erect a new edifice at a cost of about $60,000.
1939 -- 75 years ago: Willard Anderson, junior forward for the Augustana College basketball team, which won 17 out of 22 contests, was elected captain of the quintet.
1964 -- 50 years ago: John Hoffman, Moline, president of the Sac-Fox Council of Boy Scouts, will be honored for his 50 years in scouting by members of the council at a dinner Thursday evening.
1989 -- 25 years ago: The Quad-Cities has what is believed to be the area's first elite-class gymnast. It's the stuff upon which Olympic competitors are made. Tiffany Chapman, of Rock Island, not only has earned the highest possible gymnast ranking, she won the honor at age 11.






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