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Is “nut-free” sunflower seed butter safe for children with peanut allergy?

Denise C Hsu and Constance H Katelaris
Med J Aust 2007; 187 (9): 542-543.

To the Editor: A 5-year-old girl with known peanut allergy presented with an acute allergic reaction after ingesting “nut-free” butter containing sunflower seeds (85%), sugar, emulsifier and antioxidant. The label on this product stated that it was processed in a peanut-free facility, and that each batch was tested for traces of nuts and peanut protein.

Denise C Hsu, Immunology Registrar
Constance H Katelaris, Professor of Immunology and Allergy
Department of Immunology, Campbelltown Hospital, Sydney, NSW.
Article References: 
Reference Text: 
Hungness S, Singer A, Baldwin J. Sunflower seed allergy [abstract]. J Allergy Clin Immunol 2006; 117: S46.
Reference Order: 
1
PubMed ID: 
Reference Text: 
Axelsson IG, Ihre E, Zetterstrom O. Anaphylactic reactions to sunflower seed. Allergy 1994; 49: 517-520.
Reference Order: 
2
PubMed ID: 
7825717
Reference Text: 
Comstock S, Teuber K. Sunflower seed food allergy as a co-allergy with peanut [abstract]. J Allergy Clin Immunol 2007; 119: S116.
Reference Order: 
3
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