Answers are grounded in this paper and cite their sources.
IgE antibodies specific to psyllium were demonstrated by RAST in a patient with work-place-related asthmatic and dermatological reactions. Antibodies were not cross-reactive with the related plant, English plantain.
No takes yet. Share an insight, caveat, or question.
Gauss et al. (1985) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: