Betula
Birch-derived foods (sap, leaves, syrup) have a long history of traditional use and contain naturally occurring polyphenols. Some individuals with birch-pollen allergy may experience oral allergy syndrome.
What it is
Birch (genus Betula); birch bark, leaves, sap, and extracts derived from birch trees.
Source of birch sap (drinkable beverage), birch leaf tea, and xylitol; in cosmetics used as extract.
Why it's flagged
- birch pollen cross-reactivity in allergic individuals
What regulators actually say
"Pollen-food allergy syndrome (PFAS), also known as oral allergy syndrome, is most commonly associated with birch pollen, with reactions to fruits and vegetables."
Regulatory status
United States — FDA
Birch sap and extracts have a history of food use; not specifically regulated.
European Union — EFSA
Birch leaf and bark used as botanicals; not classified as additives.
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