How Tea May Support Allergic Response and Immune Balance
liujiehangAuthor:Nationally certified senior tea appraiser Xu Jiahua
Tea is more than a daily drink. Researchers have studied how tea polyphenols interact with the immune system and allergic reactions. This topic is not about medical claims. It is about what current research observations show.
Tea and Allergic Response – What Studies Observed
Why Researchers Look at Allergic Response
Scientists often use hyaluronidase activity to observe allergic processes.
This enzyme is related to inflammation and blood vessel permeability.
Many anti-histamine drugs suppress this enzyme activity.
Different Tea Types Show Different Strength
Research has shown a trend:
- Green tea shows the strongest suppression effect
- Oolong tea shows medium strength
- Black tea shows the weakest effect
This follows fermentation level.
Less fermentation = more original polyphenols.
Not All Tea Polyphenols Have the Same Effect
Different Catechins Work Differently
Researchers separated polyphenols into different catechin molecules such as EGC, ECG, EGCG, and EC.
They found that EGCG and EGC showed stronger activity at lower concentrations.
EC and ECG needed higher concentrations for a similar effect.
This means polyphenols are not equal.
Tea Polyphenols and Immune Support
Tea Does Not “Shut Down” Immunity
Research observations found that tea polyphenols did not reduce immune function.
In some cases they increased certain immune markers. Examples:
- Cancer patients after chemo or radiation showed increases in IgM and IgA after taking tea polyphenols
- Animal studies observed increased macrophage phagocytosis
- Lymphocyte activation increased when polyphenol concentration reached a certain level
Tea Supports Balance
These findings suggest that tea polyphenols may support immune balance.
Not a full boost, not a full suppression, but more of a modulation.
What This Means For Tea Drinkers
Tea is not medicine. It does not replace treatment.
Tea is part of lifestyle and dietary culture.
Green tea, oolong tea, and black tea all contain polyphenols.
Green tea keeps more original polyphenols because it is less processed.
Tea culture has always promoted balance, calmness, and moderation.
Modern research observations echo this philosophy.
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