What it is
L-Ergothioneine is a rare sulfur amino-acid antioxidant produced by fungi. Humans have a dedicated transporter (OCTN1) on cell membranes — strong evidence of biological importance.
Supplement · Longevity & Antioxidant
L-Ergothioneine (EGT)
EGT, "longevity vitamin"
5–25 mg · vegan · gluten-free · 60 caps
oxidative stressmemory-loss brainmitochondrialiver
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How it works
EGT scavenges hydroxyl radicals and singlet oxygen in mitochondria, accumulating in tissues over weeks. Low plasma EGT correlates with cognitive decline in elderly cohorts.
Who should take it
Adults targeting healthspan, those with low mushroom intake, midlife users with elevated oxidative-stress markers.
Avoid / careful
No known adverse interactions or toxicity have been reported for L-Ergothioneine. It is generally considered safe for consumption.
When to take it
Morning
Noon
Evening
Night
How to take it
With food
Empty stomach
Before food
Flexible — works in any of the above.
FAQs
Frequently asked
How long does it take to see benefits from L-Ergothioneine?
EGT accumulates in tissues over several weeks, so consistent daily intake is recommended for optimal benefits, typically noticeable within 4-8 weeks.
Can L-Ergothioneine be taken with other supplements?
Yes, L-Ergothioneine is generally compatible with most supplements. Its primary mechanism is antioxidant defense, which can complement other health-promoting compounds.
What is the best source of L-Ergothioneine?
While mushrooms are a natural source, concentrated L-Ergothioneine supplements provide a reliable and potent dose, as dietary mushroom intake can vary significantly.
Research summary
A plain-English read of the literature behind this supplement. Not a clinical recommendation.
EGT levels decline with age; supplementation raises plasma and tissue retention is documented.
From the blog
Editorial notes
SacredBod's longer take on L-Ergothioneine (EGT) — context the structured blocks above don't capture.
L-Ergothioneine (EGT) is a longevity & antioxidant supplement. L-Ergothioneine is a rare sulfur amino-acid antioxidant produced by fungi. Humans have a dedicated transporter (OCTN1) on cell membranes — strong evidence of biological importance.
How it works
EGT scavenges hydroxyl radicals and singlet oxygen in mitochondria, accumulating in tissues over weeks. Low plasma EGT correlates with cognitive decline in elderly cohorts.
Who it’s for
Adults targeting healthspan, those with low mushroom intake, midlife users with elevated oxidative-stress markers.
Dosage & timing
- Typical dose: 5–25 mg
- Best time: morning
- With food: flexible
- Expected onset: 4–12 weeks for tissue retention.
India context
Availability on Amazon India is currently limited or import-only for this form. International brands (iHerb, NOW Foods, Doctor’s Best) ship to India with variable customs handling. Local Ayurvedic equivalents may offer overlapping benefits.
Safety
No known interactions or toxicity.
Added to your stack.