La Boqueria While an apple a day won’t keep the doctor away, heaping the plate with broccoli, spinach and oranges might be just what the doctor ordered.  Colorful fruits and vegetables are sources of the antioxidants, including beta carotene, vitamin E, selenium and vitamin C.  The antioxidants work together to boost the immune response and increase resistance to infection, colds, and flu bugs. Ample intake of beta carotene-rich foods, such as watermelon, carrots, apricots and broccoli, also maintains the skin and mucous linings in the nose and lungs, which are the body’s first line of defense against germs. Most people don’t get enough of these foods and would do well to double or even triple current intake to at least 8, and preferably 10, servings daily.

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