CoQ10: How a Small Molecule Helped Spark Big Healing — and Why It Matters for Gulf War Illness
- Dr Linnette M. Johnson

- 6d
- 3 min read
I’ve been exploring Coenzyme Q10 (CoQ10) for years now — not just as a nutrition professional, but as someone who’s seen its potential up close.
This isn’t just another supplement story. For me, it started with something deeply personal — and turned into a lesson about how healing often begins at the cellular level.

A Heart That Needed Help
A little over 14 years ago, my spouse’s heart took a devastating hit after a severe streptococcus pneumonia infection.
The aftermath was brutal. Their heart was severely weakened, and their ejection fraction (EF) — the percentage that measures how well the heart pumps blood — had dropped to 10–20%. In simple terms, the heart was barely functioning.
It was one of those moments that changed how you see health forever.
Taking a Chance on CoQ10
At the time, I was just beginning my nutrition journey, pursuing my second master’s degree, and diving deeper into integrative approaches to recovery.
Under medical supervision (and, admittedly, with some skepticism from the doctor — “It probably won’t do much, but it won’t hurt”), my spouse started taking 400 mg of CoQ10 daily.
And then… something amazing happened. Within about six months, their follow-up echocardiogram showed their EF had improved to 40–50%. Watching that transformation unfold wasn’t just emotional — it was enlightening. I couldn’t stop asking why.
What I Discovered About CoQ10
As I dug into the research, I realized CoQ10 isn’t just a supplement — it’s a critical molecule for life itself.
Here’s what I found fascinating:
It powers our mitochondria.CoQ10 (or ubiquinone) plays a central role in the electron transport chain, the process that turns food into energy (ATP). When the mitochondria falter — as they do with aging, illness, or inflammation — the body literally can’t generate enough energy to function well.
It protects our cells. Beyond its energy role, CoQ10 is a potent antioxidant. It helps neutralize reactive oxygen species (ROS) — those unstable molecules that damage cells, proteins, and DNA.
It calms inflammation. By improving mitochondrial efficiency and reducing oxidative stress, CoQ10 indirectly quiets inflammatory pathways that can wreak havoc on the heart, brain, and immune system.
In short, CoQ10 helps cells remember how to function — and how to heal.
From the Heart to the Brain: CoQ10 and Gulf War Illness
Recently, a colleague mentioned Gulf War Illness (GWI) to me, and my curiosity reignited — this time from the lens of a Doctor of Clinical Nutrition.
GWI is a chronic, multi-system condition affecting many veterans of the 1990–1991 Gulf War. Symptoms often include fatigue, brain fog, pain, mood changes, and gastrointestinal distress — and researchers have found evident biological roots that mirror what I’d already learned about CoQ10’s role in energy and inflammation.
A 2021 review by Dickey, Madhu, and Shetty in Pharmacology & Therapeutics mapped out several key findings:
Mitochondrial dysfunction: impaired cellular energy metabolism
Oxidative stress: excess reactive oxygen species (ROS) damages neurons
Neuroinflammation: chronic activation of immune cells in the brain
Disrupted lipid metabolism: changes that affect cell membranes and signaling
These aren’t just theories — they’re measurable changes found in veterans’ blood, brain tissue, and animal models.
And here’s where it gets interesting: CoQ10 directly supports each of these mechanisms.
The Research That’s Giving Hope
In early clinical trials, veterans with GWI who took 100 mg/day of CoQ10 for a few months experienced significant improvements in physical function and self-rated health compared to placebo.
It’s not a cure. But it’s evidence that supporting mitochondrial health and reducing oxidative stress can help the body regain ground, physically and cognitively.
This echoes what I saw in my spouse’s recovery: when you recharge the cell’s powerhouses, the body starts to find its rhythm again.
Healing Starts Small — and Deep
For me, this journey — personal and professional — has reinforced one powerful truth: healing begins at the cellular level.
Whether it’s a heart learning to beat stronger again or a veteran’s nervous system recovering from toxic exposure, energy is the foundation of recovery.
CoQ10 isn’t magic, and it’s not the whole answer. But it’s one of those rare interventions that bridges traditional biochemistry and lived experience — a molecule that quietly helps the body remember how to heal.
Reference
Dickey, B., Madhu, L. N., & Shetty, A. K. (2021). Gulf War Illness: Mechanisms Underlying Brain Dysfunction and Promising Therapeutic Strategies. Pharmacology & Therapeutics, 220, 107716.https://doi.org/10.1016/j.pharmthera.2020.107716
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