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Immune-enhancing supplements can also make the difference between health and a bout with the flu. Zinc , selenium and maitake or reishi mushroom extract all trigger the immune response and can help make your body a veritable flu-fighting machine. The best herbal protection against the flu, however, is elderberry. Elderberry contains substances that can block certain strains of the flu, effectively keeping them from infecting the cells. It’s also terrific if you do catch the flu. A clinical trial found that elderberry cured 90 percent of flu infections within 72 hours compared to six days for those taking a placebo. The herb also relieves nasal congestion, fever and sore throat.
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