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7 Immune-Boosting Foods For The Cold And Flu Season

Shannon Clark Jan 24, 2012

The cold and flu season appears like winter frost: wake up one morning, and it's simply everywhere. Frost tips the grass, coats your car, and maybe even blankets you. (If you're homeless or can't afford to insulate, that is.)

The immune system is your first, second and last line of defense when it comes to preventing colds and flu. With a strong immune system, you fight illness more vigorously and can put more effort into your workout program. Your training can in turn affect your immune system. A certain training level supports it; too much training can hinder it.

The battlements against bacteria can either tax or be strengthened by the various activities you do, as well as by the nutrients you ingest. In addition to washing your hands, taking a high quality multi-vitamin, and taking other preventative measures against colds and flu, you also need to support your immune system function with the right whole foods. Let's have a quick peek at the top foods you should eat to help promote a healthy immune system:

1 Sweet Potatoes

Not only are sweet potatoes a treat for active individuals due to the higher amount of slow-digesting carbs they contain (compared to regular potatoes), but they also help strengthen immune system function. Sweet potatoes are rich in beta-carotene as well as vitamin C, two nutrients thought to help strengthen immune response.

This dynamic nutrient duo can be found in other good food choices such as orangesgrapefruitsand tomatoes. Add a couple of these foods to your regular diet plan. Keep them there.

Sure they're sweet, but sweet potatoes actually have less of an impact on blood sugar than regular Russets!

2 Chicken Soup

Chicken soup may be good for the soul but it's also one of the best foods to fight the cold or flu. It slides into your stomach, and the hot liquid feels good when the chills assail you. This extra dose of hot liquid actually helps promote the removal of mucus from your system and can leave you less stuffy and breathing more easily.

Chicken noodle soup may also offer immune support. This delicious poultry elixir provides you with a strong dose of protein, a necessary element of immune system maintenance.

3 Garlic 

Vampires shy away from garlic - but you shouldn't, at least not during cold and flu season. If you're looking for a way to liven up your meals, add fresh or dried garlic. This simple herb brings sharp flavor to just about any dish.

A study published in the Journal of Nutrition suggests that diets enriched with aged garlic extract were able to maintain immune system homeostasis better than those that weren't. So garlic could be a powerful immune booster.

Since garlic is calorie free, don't let your diet stand in the way of supporting your immune system.


4 Salmon 

You need essential fatty acids to your diet. Yep - they promote a strong immune system. EFAs also help reduce inflammation, which rises after intense workouts. Dietary essential fats promote faster recovery.

5 Brazil Nuts

Brazil nuts contain high levels of healthy fats, so they're good dietary options for those sent reeling by "fish issues." These South American mainstays come from the largest trees in the Amazon Rain Forest.

They contain good doses of healthy fats and are rich in selenium - a mineral that can play a key role in the immune system. Your body produces minimal selenium, so you must ingest it via whole foods like tunabeefcod and turkey.


6 Oysters 

Kill two deficiencies with one half-shell! Consider oysters as your protein source and simultaneous immune-function support. (Added bonus: the aphrodisiac effect.) Oysters are loaded with zinc, a mineral that helps strengthen the immune system and improves resistance to infection, as noted in the American Journal of Clinical Nutrition.

You need zinc. Go without it and suffer the signs of low zinc intake: a suppressed immune system, lowered sense and taste of smell, impaired memory and the possibility of frequent infections. Other foods rich in zinc include crabpork, fortified breakfast cereals, lobster,cashews and yogurt.


7 Brown Rice

The last food to add to your diet to help promote a stronger immune system is brown rice. It's packed with selenium, already mentioned as a key player to foster a good immune response. Brown rice provides complex carbs to the body, providing energy you'll need to fend off invading bacteria.

What CAN'T brown do for you?

Individuals who follow low-carb diets find they're more susceptible to illness. Rather than eliminating carbs, opt for moderate portion sizes and choose options which maintain blood-sugar levels.

Watch your calorie intake, and make sure you get enough daily protein. Calculate the precise number of carbs and fats you need for your diet plan. Make sure you don't overlook foods that offer the best all-around immune system support!

Betcha feel stronger already, huh?