G6PD and food allergy: Eight out of ten patients had a concomitant condition: 3/10 (30%) had autism spectrum disorder, 2/10 (20%) had epilepsy and developmental delay, 1/10 (10%) had glucose-6-phosphate deficiency (G6PD) and developmental delay, 1/10 (10%) had language delay, and 1/10 (10%) had multiple food allergies.