A person with G6PD deficiency is advised not to eat foods such as menthol, tonic water, sulfites, fava beans (and gluten-free products that contain them), certain Chinese herbs, vitamin K, ascorbic acid, bitter gourd and artificial blue food coloring. These types of foods cause the condition to hemolyze and can be life-threatening. Some foods may cause the red blood cells to die but it may not be a serious condition, as stated by the G6PD Deficiency website.
Patients with G6PD deficiency are usually advised to avoid all legumes. Methanol can be hard to avoid since it is found in toothpaste, mouthwash, candy and other products. Therefore, care should be observed when using these products. Flour may contain fava beans, so it's wise to check the label for any presence of legumes. Even though vitamin K is given to newborns with G6PD deficiency, it is known to cause certain adverse effects, such as brain damage and hemolytic anemia. Typically, taking these foods will increase hemolysis, which can cause other conditions, such as memory dysfunction.
G6PD deficiency is a genetic condition whereby the body lacks enough glucose-6-phosphate dehydrogenase. The enzyme G6PD has a role in helping the red blood cells to function well. A person with G6PD has a higher risk of getting hemolytic anemia if he or she uses certain medications and foods, as stated by KidsHealth.