Glutamate

The Hidden Brain Chemical Driving Dementia | How Glutamate and Neuroinflammation Damage Memory

November 13, 20254 min read

🧠Is Glutamate Fueling the Inflammatory Fire Behind Dementia?

(by Kelly Lenehan, Naturopath — The Dementia Revival Project)


Understanding the True Roots of Dementia

Our brains don’t simply “wear out” with age — they respond to the burdens we place on them.
Toxins, infections, nutrient deficiencies, poor sleep, chronic stress, and even emotional strain can all create an internal environment of neuroinflammation — a smouldering fire that disrupts communication between brain cells.

Over time, this inflammatory load leads to neurochemical imbalances, one of the most significant being glutamate dysregulation — where the brain’s excitatory signals go unchecked, overstimulating neurons and slowly impairing memory, mood, and focus.

This chain reaction — from systemic burden → neuroinflammation → glutamate imbalance → cognitive decline — sits at the core of dementia and other neurodegenerative changes.

At The Dementia Revival Project, and through my Brain Revival Protocol, my work focuses on reversing that process.
By addressing the many interconnected contributors to neuroinflammation — gut imbalance, oxidative stress, mitochondrial dysfunction, poor detoxification, nutrient deficits, and more — we can calm the brain, restore balance, and give it the chance to heal.


Is Glutamate Fueling the Inflammatory Fire Behind Dementia?

For decades, dementia has been seen as an inevitable decline — a slow fading of memory and self.
But new research is showing that dementia isn’t simply about “plaques and tangles” in the brain.
At its core, it’s often driven by chronic neuroinflammation — and one of the key sparks that ignites that inflammation is glutamate dysregulation.


🧩 When Glutamate Turns from Helper to Harmful

Glutamate is the brain’s most abundant neurotransmitter — vital for learning, focus, and memory.
But in excess, glutamate can become destructive.

When it’s not efficiently cleared or converted, glutamate overstimulates neurons, leading to what’s known as excitotoxicity — essentially, brain cells that are overactivated to death.

This process triggers inflammation and oxidative stress, slowly damaging the very cells responsible for cognition, mood, and memory — the same neural networks that deteriorate in dementia.

In fact, many researchers now consider glutamate imbalance and neuroinflammation as fundamental mechanisms driving the early stages of dementia, even before structural brain changes appear.


🔍 How Glutamate Imbalance Fuels the Dementia Process

Several factors can tip the brain toward excess glutamate activity:

  • Chronic stress and poor sleep

  • Nutrient deficiencies (especially magnesium, B6, zinc, and taurine)

  • Blood sugar instability

  • Gut inflammation and microbiome imbalance

  • Environmental toxins or infections

  • Mitochondrial dysfunction reducing the brain’s energy capacity

When these factors converge, glutamate builds up in the spaces between neurons.
Instead of promoting learning and communication, it sets off a chemical storm — damaging synapses, increasing calcium influx, and activating microglia (the brain’s immune cells).

The result?
A chronically inflamed brain that becomes more susceptible to cognitive decline, anxiety, and dementia-related changes.


🧬 How to Start Investigating Glutamate and Neuroinflammation

Understanding your personal neurochemical landscape can be incredibly empowering — especially if dementia runs in your family or you’re starting to notice early memory changes.

Here are two useful testing options to begin exploring:

  1. Amino Acid Profile (Plasma Glutamate & Glutamine):
    Elevated glutamate or low glutamine can suggest an imbalance in conversion or clearance pathways — often linked to mitochondrial or detoxification issues.

  2. Neurotransmitter Panel:
    This can measure levels of glutamate, GABA, dopamine, and serotonin — giving insight into whether excitatory and calming brain chemicals are in balance or not.

These tests are powerful tools I use within The Brain Revival Protocol to uncover the why behind symptoms — not just label them.


🌿 Two Gentle Ways to Begin Calming Glutamate Activity

Even before testing, there are safe, evidence-based ways to help regulate glutamate and support brain resilience:

  1. Magnesium Threonate:
    This specialized form of magnesium crosses the blood–brain barrier and helps regulate NMDA receptors — essentially preventing neurons from becoming overstimulated by glutamate.

  2. Taurine:
    A naturally calming amino acid that supports GABA activity, reduces excitotoxicity, and assists in bile flow and detoxification — all crucial in lowering brain inflammation.

These steps form part of a broader strategy to restore balance to the brain’s chemistry, reduce inflammation, and protect neurons from early degenerative change.


💭 Reviving a Brain in Decline

Glutamate dysregulation isn’t the root cause of dementia — it’s the outcome of an overwhelmed, inflamed brain.
The hopeful news is that once we begin to lift those underlying burdens and restore balance, healing becomes possible.

That’s exactly what my Brain Revival Protocol is designed to do — to bring together science-backed nutrition, lifestyle strategies, and targeted natural therapies that calm inflammation, restore neurochemical harmony, and reawaken cognitive function.

If you’re ready to explore how to calm the inflamed brain and create the right environment for memory and clarity to return, I invite you to discover more about the protocol and the wider project behind it.

👉 Learn more at https://kellylenehan.com — because while you may be forgetting, you’re not forgotten.


Australian Registered Naturopath - specialising in brain health, I help people experiencing memory loss or dementia - and their families - go from confusion and decline to feeling themselves again by naturally healing memory, mood and disorientation.

Kelly Lenehan

Australian Registered Naturopath - specialising in brain health, I help people experiencing memory loss or dementia - and their families - go from confusion and decline to feeling themselves again by naturally healing memory, mood and disorientation.

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