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Side Effects of Too Much GABA

author image Susan Kaye
Susan Kaye writes about alternative health care, the medicinal value of foods and natural remedies for healing body, mind and spirit. She is currently retired from an active classical homeopathy practice and enjoys sharing her passion for alternative medicine in her writing with those seeking health care freedom.
Side Effects of Too Much GABA
Side Effects of Too Much GABA Photo Credit Jupiterimages/Photos.com/Getty Images

Gamma-aminobutyric acid (GABA) is a neurotransmitter and found naturally in the body. It is a chemical that works in the brain to transmit nerve impulses. GABA is used by some as a nutritional supplement for assorted alleged benefits. Side effects are mild and uncommon.


GABA is used as a sleep aid due to its ability to stimulate seratonin in the brain which relaxes the body making it ready for sleep. Additional seratonin in the system helps to elevate a person's mood, and GABA is often used as an an anti-depressant according to Wellsphere.com. GABA also stimulates the pituitary gland to produce human growth hormone, stimulating fat burning, which makes it attractive to body builders. It is not approved by the FDA due to its questionable effects on the production of GCH, human growth hormone.

Skin Effects

GABA may cause tingling, tickling, itchy sensations in the face, neck and limbs which may indicate involvement with the circulatory system.

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Sleep Aid

Since GABA relaxes the body, it can also cause excess sleepiness and drowsiness the following day after dosing. Its sedative qualities make it idea for use as a sleep aid.


Changes in breathing rate and shortness of breath have been documented.

Anxiety Relief

Because GABA is a natural anxiety relief agent, higher dose can pose a problem producing aggravations in the case of anxiety and panic attacks reports Wellsphere.com.

Side Effects of IV Dose

eMedTV reports mild side effects reported when GABA was administered through an IV dose. They ranged from a sense of dysphoria, or feeling lightheaded and pleasant, to an elevation in blood pressure and heart rate.

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