subject: G6PD Enzyme [print this page] If you have G6DP deficiency due to a sensitivity to beans, this is known as favism. G6PD deficiency is the most common enzyme defect in humans and it is asymmetric to the most of the individuals who have it. Babies who are born with it often have jaundice at birth. Fortunately, this condition is easily treatable in any case, and those who have it should have no long term problems with proper treatment.