Gamma-aminobutyric Acid (GABA) is used by many to treat depression, anxiety and insomnia. It is a neurotransmitter found in the brain which stimulates serotonin production, thereby creating a sense of relaxation in the body. It also triggers human growth hormone production. Many people take this supplement in the evening as a sleep aid, and some individuals take it to relieve anxiety. Another reported benefit of GABA is its ability to metabolize fat.

Side effects of GABA are minimal and may include tingling and itchiness. I have taken 750 milligrams of GABA in one dose daily and haven’t experienced any of these side effects.

If you decide to take this supplement, you may want to boost its relaxation benefits by also taking tryptophan, valerian, kava, and 5-HTP.

Recommended dosage is 250 milligrams three to four times daily, taken on an empty stomach. One caution is that if GABA makes you groggy, take 500 milligrams twice daily, one in mid evening and once before bed.