8. Bananas
The glutamate content of banana is 220 mg per 6-8 ounces. It has high tryptophan level that helps increase serotonin and improve mood disorders. If you are recovering from stress or experiencing GABA deficiency symptoms such as rapid heart rate, backache, restlessness, and insomnia, then banana is the excellent remedy.
9. Oranges
Oranges and other citrus fruits consist of 210 mg of glutamic acid per cup. Its Citamin C content also helps activate GABA receptors on our retinal nerve cells. A glass of freshly squeezed orange juice full of folate and folic acid every day is enough to support our brain and cognitive health.
