Reeko Osada, Chiyako Oshikata, Yuichi Kurihara, Kosuke Terada, Yuka Kodama, Yuga Yamashita, Ryo Nakadegawa, Hinako Masumitsu, Yuto Motobayashi, Hirokazu Takayasu, Nami Masumoto, Saki Manabe, Yingyao Zhu, Ryo Tanaka, Takeshi Kaneko, Aya Sasaki, Naomi Tsurikisawa
Monosodium glutamate (MSG), a salt form of a non-essential amino acid, is widely used as a food additive, particularly in Asian cuisines, due to its unique flavor-enhancing qualities. Type I allergic reactions to MSG have not previously been reported. Our patient, a 21-year-old woman, was 14 years old when she first noticed swelling of her tongue (but no oral itching, diarrhea, or abdominal pain) after eating various snack foods. Current skin prick testing elicited a weak positive reaction to MSG. We then performed an oral challenge test during which our patient ingested potato snacks...
2024: Journal of Asthma and Allergy