Compare every Glutamic Acid product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Amino acid and the body's main excitatory neurotransmitter
We rank Glutamic Acid by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
What it is
Glutamic Acid is an amino acid, which is a building block used by the body to create proteins. It acts as the main excitatory neurotransmitter, meaning it is a chemical messenger that stimulates nerve cells in the brain to help them communicate.
Why it's used
It is used primarily to support brain function and the nervous system. Because of its role in stimulating brain activity, it is often taken to help with cognitive processes.
How it's made
To create the supplement, manufacturers typically use a process called fermentation. This involves using microorganisms to break down raw materials like sugar or corn into the amino acid, which is then purified and dried into a powder for capsules or tablets.
What it typically costs
This ingredient is generally mid-range in price. This is because the fermentation process used to produce it is more complex than simple extraction, but the raw materials are widely available and competition among suppliers is high.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Amino acid and the body's main excitatory neurotransmitter
How does Suppio calculate the best-value Glutamic Acid?
We rank Glutamic Acid by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Are these prices verified?
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
How often are Glutamic Acid prices updated?
Prices across our retailer network are refreshed at least daily.