In rare cases, ginkgo may cause headache, irritability, restlessness, diarrhea, headache, nausea, vomiting, dizziness, or vertigo. These effects are usually mild and transient. After three to five weeks, re-assess your feelings. If you are doing well, continue. 5-HTP instead of gingko biloba, as explained below.
Much depression is related to dysregulation of the neurotransmitter serotonin.
This major brain messenger provides feelings of competence, calmness, satiation and satisfaction. Many common anti-depressant drugs, such as MOA inhibitors and SSRIs , are designed to increase serotonin. Mono-amine oxide inhibitors inhibit an enzyme that breaks down serotonin. Eating carbohydrates can raise serotonin, which explains many a late night raid of the refrigerator and cookie jar. St. John's wort and 5-HTP are two natural products that increase serotonin levels as well, and with much fewer side effects.