Evidence supporting the use of: Star Anise
For the health condition: Colds (antiviral)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Star anise (Illicium verum) is traditionally used in various cultures for treating colds and other respiratory ailments, but there is also scientific rationale for its use, particularly due to its content of shikimic acid. Shikimic acid is a critical starting material in the pharmaceutical synthesis of oseltamivir (Tamiflu), an antiviral medication prescribed for influenza. While star anise itself is not an antiviral drug, the presence of shikimic acid has led to interest in its potential to help manage viral infections such as colds and flu.

Laboratory studies have demonstrated that star anise extracts possess antiviral properties against certain viruses, and some in vitro research has shown inhibitory effects on influenza viruses. However, these effects are typically observed at concentrations or in preparations not comparable to culinary or traditional medicinal use. There is limited clinical data on the direct effectiveness of star anise preparations in treating or preventing colds in humans. Most of the scientific support is indirect, based on its role as a precursor for antiviral drugs rather than as a direct-acting antiviral agent when consumed as a spice or tea.

In summary, while traditional use is strong, there is a moderate level of scientific evidence supporting the antiviral potential of compounds found in star anise, particularly shikimic acid. However, robust clinical trials in humans are lacking, so its use for colds is not fully validated by science.

More about Star Anise
More about Colds (antiviral)

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vitamin C
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Clerodendrum trichotomum
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Capillary Artemisia
Citron
Citrus
Chinese Raisintree
Cowherb
Cistus
Common madia
Cinnamaldehyde
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Celosia
Chondrus
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Products containing Star Anise

We currently have no products on Vitabase that contain this ingredient.