Ingredient

Selenium (Selenomethionine)

SelenoPrecise® · Organic selenium · Glutathione enzyme cofactor

Powers the glutathione peroxidase enzymes your liver needs for antioxidant defence. In the best-absorbed organic form (selenomethionine).

At a glance
What it is
Essential trace mineral
🛡️
What it does
Powers glutathione enzymes
💊
Daily dose
40–50 mcg
🍽️
When to take
With food
📦
Found in
Classic · Pro · Shield
Key caution
Safe at this dose · Do not exceed 200mcg/day from all sources
How it works

What selenium does for your liver

Selenium is a trace mineral your body needs in tiny amounts but can't function without. Its main job in liver health is powering glutathione peroxidase — an enzyme family that uses glutathione to neutralise damaging molecules called reactive oxygen species.

Without adequate selenium, your glutathione peroxidase enzymes can't work properly — even if your glutathione levels are fine. Think of selenium as the key that starts the glutathione engine.

In Libertia Shield specifically, selenium is part of the triple glutathione strategy: glycine provides the building block, broccoli seed extract switches on glutathione production, and selenium powers the enzymes that use it.

Part of The 4-System Protocol™ In the Libertia range, selenium supports "System 4: Replace what's missing" in Classic and Pro, and is part of "System 2: Rebuild your body's main defence" in Shield.
When to take it

Best timing for maximum benefit

🕐
Any time of day
No time-dependent effects. Take whenever you take your Libertia capsule.
Missed a dose?
Take with your next meal.
Food interactions

Foods that help or hinder absorption

Foods that help (take WITH these): No specific food requirements. Selenomethionine absorbs well regardless of meal composition.
Be careful with these: Brazil nuts are extremely rich in selenium. If you regularly eat Brazil nuts (3–4 nuts can contain over 200mcg selenium), check your total intake. Too much selenium is harmful.

If you eat a varied diet including grains, eggs, and some animal protein, you may already be getting adequate selenium. The Libertia dose (40–50mcg) tops up what you may be missing.

How long to take it

Duration of use

Indefinite at this dose. 40–50mcg daily is well within the safe range for long-term use. The upper safe limit is 400mcg daily.

Who should avoid it

Situations where this ingredient is not appropriate

Already taking selenium supplements: Check your total selenium intake from all sources. The upper safe limit is 400mcg daily. If you're already on a separate selenium supplement, you may be getting more than needed.

Severe kidney disease: Selenium excretion may be impaired. Consult your doctor.

Our source

Where we source our selenium

SelenoPrecise® or equivalent

Form: L-selenomethionine (organic selenium — best absorbed form)
Dose: 40–50mcg elemental selenium per daily serving
Testing: Selenium assay, heavy metals, microbial limits per batch
FSSAI status: Permitted mineral supplement
Products containing Selenium

Find it in these Libertia products

Frequently asked questions

Common questions about Selenium

Can I get enough selenium from food?+
Brazil nuts are extremely rich (1 nut ≈ 70–90mcg). Other sources include eggs, fish, and grains. If you eat a varied diet including these foods, you may already be getting enough. The Libertia dose tops up any shortfall.
Is selenium toxic?+
Only at high doses. Toxicity symptoms begin above 400mcg daily sustained. Our dose is 40–50mcg — about 10× below the toxic threshold. You'd need to eat 5–6 Brazil nuts daily on top of your Libertia capsule to approach concern levels.