Raw ginkgo seeds contain the poisonous chemical known as ginkgotoxin.
Ginkgo, also known as ginkgo biloba, is prescribed to treat age-related macular degeneration, Alzheimer's disease, dizziness, premenstrual syndrome and other serious health conditions. It is a medicinal herb derived from the leaf of the world's oldest living species of tree. Although ginkgo can relieve some serious problems, there are life-threatening dangers associated with its use, according to the University of Maryland Medical Center.
Side Effects and Allergic Reaction
The most common side effects of ginkgo use include headache, dizziness, nausea, diarrhea, gas and upset stomach. These are usually mild enough that medical attention is not needed. Some people, however, experience a severe allergic reaction after taking gingko biloba. Symptoms of an allergic reaction include hives, swelling of the mouth and tongue, seizures, muscle weakness and irregular heartbeat. A severe allergic reaction can lead to death if not properly treated.
Increased Risk of Bleeding
People who take ginkgo orally are at an increased risk for excessive bleeding. Some people experience frequent nose bleeds after taking ginkgo. People with bleeding disorders should use extra caution when taking ginkgo biloba. Stop taking ginkgo before undergoing surgical or dental procedures to reduce the chance of complications, according to the Mayo Clinic.
Blood Sugar and Blood Pressure
Taking ginkgo can affect blood glucose levels and insulin production. Thus, diabetics and hypoglycemic people should carefully monitor blood sugar levels when taking ginkgo. Ginkgo can also affect blood pressure levels and cause hypotension. When combined with a thiazide diuretic, it may have the opposite effect and actually increase blood pressure. It is important to regularly check blood pressure levels when taking ginkgo.
Seed Toxicity
The seed of the ginkgo tree contains a toxic chemical. Eating around 10 ginkgo seeds can cause seizures or sudden death. Fresh ginkgo seeds generally contain more toxic chemicals than their roasted counterparts. Avoid eating any crude tree parts -- including seeds, fruit pulp or leaves, to reduce your risk of having a serious allergic reaction or other complications.
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