© by Elizabeth Lee Vliet MD and Kathy Kresnik
In our modern world, we are constantly exposed to invisible threats — environmental pollutants, processed foods, stress, UV radiation, and the normal wear-and-tear of daily living. These factors generate oxidative stress that can damage our cells, particularly the mitochondria — the tiny “powerhouses” responsible for producing the energy we need to thrive. Then add the COVID shots with spike protein and lipid nanoparticle toxicity and mitochondrial damage to the already long list, and we have a “witch’s brew” of damaging effects on our body at the cellular level that adds up day in and day out.
What if there was a powerful, naturally occurring compound that could help shield your mitochondria, buffer these everyday toxins, and support healthier aging? Meet L-Ergothioneine (often simply called ergothioneine, or L-ET), a unique antioxidant amino acid earning the nickname “The Longevity Vitamin.”
Pioneering researcher Dr. Bruce Ames, known for his groundbreaking work in nutrition and aging, has described ergothioneine as a potential “longevity vitamin” — because it is the longest lasting, deepest penetrating oral antioxidant that has profound anti-inflammatory actions, eliminates DNA damaging acids, and increases mitochondrial function.
Ergothioneine’s antioxidant capacity is 10 times better than polyphenols found in fruits and vegetables and 34 times more effective than glutathione!
Based on the exciting research since 2006, ergothioneine is such a powerful nutrient that we now think may be essential not just to prevent deficiency diseases, but also to optimize long-term mitochondrial health and reduce the risk of age-related decline.
I have been recommending TruMitochondrial™ Boost – our fermentation-based L-ergothioneine supplement for several years now to help my patients increase cellular energy output and overall energy levels. I feel so strongly about the health benefits of this product that I included it as one of my top supplements in my foundational Resilience Formula. I am even more excited to share with you today exciting additional benefits identified in recent research that shows ergothioneine’s protection of cells from the damaging effects of environmental toxins, a cytoprotectant effect added to its other benefits.
Emerging research shows L-ergothioneine offers impressive benefits:
- Powerful antioxidant protection against oxidative damage
- Mitochondrial support — helping maintain cellular energy production
- Defense against everyday toxins and inflammatory stressors
- Potential support for brain health, cardiovascular function, and overall vitality as we age.
In the sections ahead, I will explore how L-ergothioneine works, the best food sources to naturally boost your levels, practical ways to incorporate it into your daily routine, and why this underappreciated “mushroom miracle” deserves a prominent place in your integrative health strategy.
Consider adding ergothioneine to YOUR daily supplements! Your mitochondria — and your future health — will thank you.
What is L-Ergothioneine?
L-Ergothioneine (L-ET) is a unique sulfur‑containing naturally occurring amino acid derived from histidine which humans must obtain from the diet. It is unique in that it functions more as a vitamin‑like antioxidant and cytoprotective micronutrient than a typical amino acid building block.
L-ET is not synthesized by humans or plants but produced by certain fungi and bacteria. Unlike most antioxidants our bodies can make, humans cannot synthesize L-ergothioneine on our own. We must obtain it from our diet — primarily from certain mushrooms and a few other foods. Once absorbed, this remarkable compound is selectively transported into tissues under the most oxidative stress, including the brain, heart, lungs, liver, and mitochondria themselves.
In recent years, an abundance of scientific literature has demonstrated L-ET’s antioxidant and cellular protective properties and is driving intense interest in human health applications. L-ET has been shown to decrease the rate of oxidative stress–induced telomere shortening, which has implications for human longevity. Clinical studies have shown that L-ET in TruMitochondrial™ Boost increased lifespan 12.8% and health span (which is the quality of your lifespan and the more important measure) increased by 42.6%. In addition, decreases in nuclear and mitochondrial DNA damage suggest that L-ET is a genomic stabilizer. In the central nervous system, L-ET crosses the blood–brain barrier and is neuroprotective.
It is these cellular protective functions that have really caught my attention, especially in light of the toxic exposure levels we increasingly face every day. Interest in ergothioneine has grown because it appears to protect mitochondria, the energy-producing structures inside cells, from oxidative, nitrosative, and inflammatory damage that can be triggered by chronic exposure to pollutants, industrial chemicals, pesticides, poor air quality, metabolic stress, and aging.
L-ergothioneine does not magically shield every toxin from entering the body, but it helps your cells become more resilient and able to tolerate stress, preserve energy production, protect DNA and membranes, and reduce the inflammatory damage that often follows repeated low-level toxic exposure.
BOTTOM LINE UP FRONT: L-ergothioneine in TruMitochondrial™ Boost helps your cells, particularly our mitochondria, become more resilient and able to tolerate stress and inflammatory damage from toxic exposure. I take it twice a day every day, and consider it my indispensable supplement because of all the benefits I know.
In this health tip I discuss why I consider TruMitochondrial™ Boost as a key component of any protocol designed to support cellular recovery in the areas of healthy aging, occupational exposures, chronic environmental burden, and chronic illness.
Toxic Exposure and the Mitochondria
Mitochondria produce most of the usable energy that powers human cells. When mitochondria are damaged, energy production falls, oxidative stress rises, inflammatory signaling intensifies, and tissues with high energy demand such as the brain, heart, muscles, kidneys, liver, and vascular lining become more vulnerable.
Air pollutants, heavy metals, oxysterols, pesticides, solvents, and industrial byproducts can all increase reactive oxygen species, injure mitochondrial membranes and damage mitochondrial DNA. This then impairs energy (ATP) generation and push cells toward chronic dysfunction and poorer health outcomes.
The Active Ingredient in TruMitochondrial™ Boost
Ergothioneine must obtained from diet because it is not synthesized by the human body, but the human body has evolved a dedicated transport system to absorb and retain it. This selective uptake indicates to me that ergothioneine serves an important role in protecting cells exposed to ongoing stress. In fact, research has shown that L-ergothioneine is not only actively transported into human tissues it is concentrated in cells under oxidative stress.
L-Ergothioneine gets to the places that need protection most:
One of ergothioneine’s most important features is that it is not distributed randomly. Human cells express a specialized transporter known as OCTN1, which actively takes up ergothioneine and concentrates it in tissues that experience high oxidative demand or frequent injury, including blood cells, liver, kidneys, brain, and other metabolically active tissues. Research also indicates that OCTN1 expression increases in response to oxidative stress, meaning stressed tissues may pull in more ergothioneine when they need it most.
This targeted transport matters because many antioxidants look promising in a test tube but fail to reach the intracellular sites where damage actually occurs. Ergothioneine is different because it is actively accumulated by cells and has been shown to enter mitochondria, where it can directly reduce reactive oxygen species and help preserve mitochondrial structure and function.
In other words, this means that TruMitochondrial Boost is especially helpful not just because it is the strongest antioxidant in the bloodstream, but also because it is delivered to vulnerable cellular compartments where chronic toxic stress does its most important damage.
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