Supplements for Boosting the Immune System

Not all of the supplements here are necessary, but each offers a different benefit to the immune system. Most importantly, you should have these items available at the first sign of a cold or flu. The earlier you take them, the shorter the infection.
  • Echinacea and astragalus: These herbs can be taken together or separately to help prevent or shorten the duration of a cold. Take up to 3 doses daily at the first sign of symptoms and continue until they subside. Most experts believe the herb is safe when taken daily for up to 6-12 weeks. Preventative strategy calls for 1-2 doses per day.
  • Zinc lozenges: Most lozenges or mints contain too much sugar to be of any benefit, but zinc has the property of limiting a virus’ reproduction. Throughout the day, 3-4 lozenges can help shorten the duration of the illness.
  • Oscillococcinum: Flu protection can be enhanced by the homeopathic supplement oscillococcinum. This is best used at the first sign of the flu. It can also be used if you are in contact with someone who is sick, or in places where you hear excessive coughing. It‘s a sweet tasting powder that is dissolved under the tongue. Use a second dose if symptoms persist.
  • Freeze-dried garlic: The most helpful garlic supplements for the immune system are freeze-dried extracts. The purpose is to retain the beneficial immune defense properties of the garlic during processing. Freeze-dried garlic is great for prevention of colds, as well as bacterial infections. It should not be used as a stand alone treatment but it is a nice add-on, especially for those who cannot eat garlic.
  • Beta-glucan: Beta-glucan is yet another example of Mother Nature’s prescriptions. This is a material from the cell walls of yeast that improves the fighting power of the immune system. Take with food, 1 capsule daily for prevention, or 2-3 capsules a day for treatment.
  • Vitamin C: Any discussion of colds or flu wouldn’t be complete without mentioning vitamin C. When an animal is sick, its production of vitamin C goes up dramatically. Humans are unable to produce vitamin C, but the need still increases significantly. Vitamin C supplementation can help reduce the duration of colds. There is one side effect: loose stools. This occurs when the bowels can no longer absorb the amount of vitamin C coming into the gut. The dosage needed to achieve this effect varies. The common recommendation for vitamin C is 500-1,000 mg every 2 hours at the first sign of a cold. Continue this dosage until the symptoms abate or you have loose bowels. If you do experience this uncomfortable red flag, target a slightly lower dose of vitamin C the next day. As a preventative dose, 1,000-2,000 mg can be taken daily.