Natural Antihistamines for Allergy Support

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Natural Antihistamines for Allergy Support -

Quercetin reduces the release of histamine, the substance that

triggers allergies.

Histamine is produced by mast cells. In allergic rhinitis, mast cells

in the nasal area increase in number and are thought to play an

important role in the nasal symptoms that occur during seasonal

allergies.

In one study, researchers triggered histamine release in nasal

scrapings from seasonal allergy patients exposed to mite antigen.

When the nasal scrapings were exposed to quercetin, histamine release

was inhibited 46 percent to 96 percent.

[1] In another study of rat mast cells exposed to an allergen,

quercetin inhibited histamine release by 95 percent and 97 percent.[2]

Bromelain is the general name for a group of proteolytic enzymes

derived from pineapple stems.

Through its action on the blood-clotting-related substances

fibrinogen and fibrin, bromelain stimulates the production and

release of anti-inflammatory prostaglandins (PGs), while

simultaneously reducing the production and release of pro-

inflammatory PGs.[3,4]

Allergic reactions typically involve an excess release of

inflammatory PGs, which contributes to the swelling, redness and

itching.

Vitamin C is a natural antihistamine. It both prevents histamine

release and increases the detoxification of histamine.

A 1992 study found that taking 2 grams vitamin C daily lowered blood

histamine levels 38 percent in healthy adults in just one week.[5]

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Alana