Dr. Michael Murray The IMMUNE FA CTOR - Natural MediFAQS

T H E I M M U N E F A C T O R
Beta carotene has demonstrated a number of immuneenhancing
effects in recent studies separate from its
conversion to vitamin A. The recommended level of
beta carotene for immune support is 25,000 to 50,000
IU (15 to 30 mg).
WARNING: Vitamin A supplementation must be absolutely avoided during
pregnancy as it can lead to birth defects. Women who are at risk for becoming
pregnant or are pregnant should keep their supplemental vitamin A levels
below 5,000 IU or, better yet, use beta-carotene.
What herbs other than echinacea are useful or supporting
the immune system?
Ecinacea is the most widely used Western herb for
enhancement of the immune system while in Chinese
medicine this title goes to Astragalus root. Clinical
studies in China have shown it to be effective when
used as a preventive measure against the common
cold.30,31 It has also been shown to reduce the
duration and severity of symptoms in acute treatment of
the common cold, as well as raise white blood cell
counts in chronic leukopenia (a condition
characterized by low white blood cell levels). The
dosage of the dried root is 1,000 to 2,000 mg three times
daily. The dosage for astragalus extract (0.5% 4hydroxy-3-methoxy
isoflavone) is 100–150 mg three
times daily.
Natural Factors has an excellent Anti-Viral
Formula, developed by Dr. Mark Stengler and Dr. Jan
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