Searches with “Glycine max”, “allergy”, and “heme” only yielded one reference from Pubmed database on impairment of carotenoid and flavonoid biosynthesis due to a mutation in Arabidopsis HY1, which is not relevant to the topic under review.27 A broader search of the literature demonstrates that soybean is reported to be a relatively common food allergen for young children, rarely for adults. Here, RNY1 is linked to Allergy.