What is L-ergothioneine?
L-ergothioneine is the compound EVER is built around, and most people have never heard of it. Here is the plain, honest version: what it is, where it comes from, why scientists find it interesting, and what the research does and does not say. No hype, no white coats, no health claims.
L-ergothioneine is a naturally occurring antioxidant found mainly in mushrooms. Your body cannot make it, so it comes from food, and it even has a dedicated transporter to hold onto it. It is an active area of research. EVER includes 5 mg per can because it is fascinating and naturally part of a mushroom-rich diet, not because we are making any health claim.
What it actually is
L-ergothioneine is a water-soluble compound that belongs to the amino acid family. It was first discovered in 1909, in ergot fungus, which is where the name comes from. Chemically it is a stable molecule, C9H15N3O2S, that holds up well in water. That stability is exactly why it is happy living in a can of sparkling coconut water rather than degrading on the shelf.
It is often grouped with antioxidants: molecules that are studied for the way they interact with oxidative stress. That is a description of the molecule, not a promise about what it does once you drink it.
Where it comes from
The richest dietary source of ergothioneine is mushrooms, and the amount varies a lot by species. Smaller amounts turn up in a handful of other foods that pick it up through the food chain. The key point: humans do not make ergothioneine themselves. Every bit your body holds arrived through what you ate.
That is part of why a drink like EVER is an easy way to include it. Real coconut water carries the flavour and natural electrolytes, and the ergothioneine rides along in a form your body recognises from food.
The part scientists find genuinely interesting: OCTN1
Here is the unusual bit. Your body has a dedicated transporter, a specific doorway built to carry L-ergothioneine into your cells and hold onto it. Scientists named it OCTN1. Most compounds in food do not get their own transporter. The fact that ergothioneine does is one of the main reasons the molecule has attracted so much scientific curiosity: the body appears to go out of its way to keep it.
What the science does and does not say
We want to be straight with you. L-ergothioneine is an active area of research. Scientists are studying it, and levels in the body have been observed to change with age. But this research is early, much of it is observational or done in the lab, and it does not prove that drinking EVER produces any health benefit.
We include L-ergothioneine because we find it fascinating and because it is naturally present in a diet rich in mushrooms, not because we are making any health claim. EVER is a food, not a supplement or a medicine.
How much is in EVER
Every 250 ml can of EVER is built on real coconut water and includes L-ergothioneine plus a small, considered mix of nutrients. Here is the per-can breakdown:
sugars 0 g · salt 0,1 g
L-ergothioneine 5 mg · magnesium 28 mg · zinc 1,5 mg
The other nutrients in the can
Alongside L-ergothioneine, EVER includes magnesium, zinc and vitamin C. For these three, there are officially authorised statements about what the nutrients contribute to. We quote them exactly, and nothing beyond them:
Magnesium
- Magnesium contributes to a reduction of tiredness and fatigue.
- Magnesium contributes to normal muscle function.
Zinc
- Zinc contributes to the protection of cells from oxidative stress.
- Zinc contributes to the normal function of the immune system.
Vitamin C
- Vitamin C contributes to the protection of cells from oxidative stress.
- Vitamin C contributes to the reduction of tiredness and fatigue.
These are the authorised wordings for magnesium, zinc and vitamin C as nutrients. They describe the nutrients, not a specific benefit of this drink, and they do not apply to L-ergothioneine.
Questions people ask about L-ergothioneine
What is L-ergothioneine?
L-ergothioneine is a naturally occurring, water-soluble compound from the amino acid family, first identified in 1909 in ergot fungus, which is where the name comes from. It is obtained from the diet, most notably from mushrooms, and is recognised as an antioxidant.
Where is ergothioneine found in food?
The richest dietary sources are mushrooms, with the amount varying by species. Smaller amounts occur in some other foods. People obtain ergothioneine from what they eat rather than making it in the body.
Does the body make ergothioneine?
No. The body does not synthesise ergothioneine; it comes from the diet. Notably, the body has a dedicated transporter, known as OCTN1, that carries ergothioneine into cells. Most compounds in food do not get their own transporter, which is part of why it has attracted scientific interest.
Is L-ergothioneine an antioxidant?
Yes, it is described as a naturally occurring antioxidant. Research into what that means in the body is still early and largely observational or laboratory-based, and EVER makes no medical or health claims about it.
How much L-ergothioneine is in EVER?
Each 250 ml can of EVER contains 5 mg of L-ergothioneine, alongside real coconut water, magnesium, zinc and vitamin C.
Does EVER make health claims about L-ergothioneine?
No. The scientific research is shared for general information only. EVER is a food, not a supplement or a medicine, and no medical or health claim is made about L-ergothioneine.