GABA explained: what it is and where it comes from

GABA stands for gamma-aminobutyric acid, according to EFSA (the European Food Safety Authority), and is made from glutamate in the brain. EFSA says GABA is present in about 40% of nerve cells. Three products we reviewed list GABA, but none prints its individual amount.

OHONH₂OHONH₂
What it is
Amino acid
In the products we reviewed
3, none prints the amount

What gABA is

  • GABA is made from glutamate in the brain.2
  • GABA stands for gamma-aminobutyric acid.1
  • GABA is present in about 40% of nerve cells.1

How much gABA each product gives

Per serving, as each label prints it

Amount not printed: the dashed line shows the most it can be, the whole blend

GlucoTonicNot printed · at most 200 mg
Sugar DefenderNot printed · at most 200 mg
Glyco HarmonyNot printed · at most 200 mg

The 3 products we reviewed that list gABA

ProductForm and servingGABA per servingOur scorePrice a bottleBuy
GlucoTonic#1 in blood sugar supportLiquid drops1 mlNot printedIn a 200 mg proprietary blend9.9$49Check price
Sugar Defender#3 in blood sugar supportLiquid drops1 mlNot printedIn a 200 mg proprietary blend9.5$49Check price
Glyco Harmony#5 in blood sugar supportLiquid drops1 mlNot printedIn a 200 mg proprietary blend9.3$49Check price
Prices checked Oct 5, 2026

Questions people ask

What does GABA stand for?

GABA stands for gamma-aminobutyric acid, according to EFSA (the European Food Safety Authority).

Where does GABA come from?

GABA is made from glutamate in the brain.

Is GABA found in nerve cells?

Yes, EFSA says GABA is present in about 40% of nerve cells.

Which supplements contain GABA?

GlucoTonic, Sugar Defender and Glyco Harmony are the three products we reviewed that list GABA. Each lists it inside a 200 mg proprietary blend per 1 ml serving, without printing GABA's individual amount.

Also in these products

Sources

The products, amounts and prices come from each product's label and checkout, as its review shows them. AI drafts our pages from listed sources, figures are checked against them, and we have not tried the products.

  1. 1EFSA Journal (2009), scientific opinion 1274efsa.onlinelibrary.wiley.com/doichecked
  2. 2NIH National Cancer Institute Thesaurus, Gamma-Aminobutyric Acidevsexplore.semantics.cancer.gov/evsexplorechecked