Foods to boost your immune system

INDIANAPOLIS (WISH) - Can we eat certain foods that will boost our immune system? 

Registered dietician Annessa Chumbley believes it couldn't hurt. 

She says yams and citrus fruits, which contain beta carotene and makes Vitamin A, helps in the making of white blood cells, which are the front line of our immune systems.

Green tea, she says, is considered by some as almost a superfood.  Annessa says served hot or cold, it's a great addition to immunity boosters. 

High on her list, as well as the Harvard Health Publication,  is garlic. Both Chumbley and Harvard doctors say garlic has antibiotic qualities, and in some cases works against viruses, bacteria and fungi. 

For more on Annessa Chumbley, visit her website.

The Harvard Health Publications have devoted several web pages to fact and fiction about boosting one's immune system.  Writers from HHP note, the human body, in general, does a wonderful job of protecting itself against bugs. 

To keep it strong, follow some basic steps:

• Don't smoke.
• Eat a diet high in fruits, vegetables, and whole grains, and low in saturated fat.
• Exercise regularly.
• Maintain a healthy weight.
• Control your blood pressure.
• If you drink alcohol, drink only in moderation.
• Get adequate sleep.
• Take steps to avoid infection, such as washing your hands frequently and cooking meats thoroughly.
• Get regular medical screening tests for people in your age group and risk category.
• Be skeptical.

One other area HHP highlight, is the role of micronutrients, trace elements that can play a role in one's immune system.

Some research suggests micro-nutrient malnutrition, in which a person is deficient in some essential vitamins and trace minerals, can be common in the elderly. The writers suggest senior citizens, especially,  take Vitamin A, B2, B6, C, D, E and zinc to bolster their immune response. 

For more on how to boost your immune system visit Harvard Health Publications website.