Most individuals with G6PD deficiency should avoid fava beans, according to G6PD.org. Some individuals with the mutation may also benefit from avoiding red wine, blueberries, legumes and soy products.
The severity of the genetic mutation is a factor in determining which food should be avoided. Most sufferers of G6PD deficiency should avoid fava beans, while only some sufferers choose to avoid other foods such as soy and tonic water, according to G6PD.org.
G6PD deficiency is a hereditary genetic condition in which the sufferer is deficient in the enzyme glucose-6-phosphate-dehydrogenase. In healthy individuals, this enzyme helps to stabilize the lifespan of red blood cells. A deficiency of the enzyme may lead to hemolytic anemia, according to G6PD.org. Hemolytic anemia is a condition in which red blood cells die too quickly to be adequately replaced by new cells formed in the bone marrow, as detailed by HealthLine.
G6PD deficiency varies in severity among individuals. Children with G6PD often do not display any symptoms until they are exposed to a trigger such as an illness or certain antibiotics and painkillers, according to KidsHealth. Drugs that should be avoided include furazolidone, glucosulfone, menadione and niridazole. A full list of drugs that pose risks to individuals with G6PD deficiency is available on G6PD.org.