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2. Vitamin C

Oranges and other citrus fruits provide the best-known sources of vitamin C. To maintain a healthy immune system and help fight sinus infections, individuals should aim to consume approximately 3,000 milligrams of vitamin C each day. Eating citrus fruits and drinking pure (unsweetened) juice is a pleasant way to get enough of this important nutrient.

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.