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January 4, 2014

EXTENSION NEWS: Fight flu, colds by eating a healthy diet

By KATHY SMITH

Waking up with a cold or the flu is not fun. Sometimes it makes you want to be more proactive about your health. Giving your immune system a boost can help prevent viruses from claiming you as a victim, but have you ever wondered how effective they are? A healthy diet can help you fight colds and flu.

Vitamin D plays an important role in the immune system and studies have found that people with low vitamin D levels are at increased risk for colds and upper respiratory tract infections. To make matters worse, our exposure to the sun which produces Vitamin D may be limited during the winter months. Less Vitamin D can make a person more susceptible to a deficiency. You can increase your vitamin D by consuming more fatty fish such as salmon and tuna and consuming Vitamin D-fortified milk, yogurt and orange juice.

Vitamin C is popular, but it has been documented that vitamin C does not prevent colds, except in some people who are physically stressed such as marathon runners. However, there is evidence that extra vitamin C during the first stage of a cold can help shorten its duration and intensity. Vitamin C is a powerful antioxidant, which enhances immune defense and lowers the risk of infection. Good sources of Vitamin C include citrus fruits such as grapefruit, oranges, and tangerines. Berries such as strawberries and raspberries are also good sources of Vitamin C. Also deep colored vegetables such as spinach, broccoli and red bell peppers are good sources of Vitamin C. 

Protein is an essential nutrient as it provides a building block of immune molecules. Include protein sources of food on a regular basis. These sources include animal protein found in eggs, lean beef, pork, poultry, fish and lamb. These foods also contain iron and zinc that are two important immune system minerals. Almonds and sunflower seeds are good sources of protein and are high in vitamin E which is another immune-boosting vitamin.

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