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Selenium 50 mcg in a Capsule: How It Compares With Your Day
Selenium 50 mcg sits just under the adult need of 55 mcg and about an eighth of the 400 mcg upper limit. Reviralis prints L-selenomethionine 50 mcg per two capsules, 91% of the Daily Value. The risk with selenium is stacking, since multivitamins and Brazil nuts also carry it.
Written by the Goreviralis label deskUpdated · 4 min read
Is selenium 50 mcg a lot?
No: it is about 91% of the 55 mcg adult need and 12.5% of the 400 mcg limit (NIH ODS, Selenium).
The need is the same for men and women. So a day with only these capsules and a modest diet lands near the target, while a day with several selenium products can drift past it.
| Measure | Amount | Share the label line fills |
|---|---|---|
| Label line (2 capsules) | 50 mcg, 91% DV | Printed |
| Adult need | 55 mcg | 91% |
| Upper limit | 400 mcg | 12.5% |
| Room left under the limit | 350 mcg | 87.5% |
How do Brazil nuts change the selenium math?
They can change it a great deal: Brazil nuts are by far the richest food source.
NIH lists them as the richest source, with an ounce of six to eight nuts holding several hundred mcg, enough to pass the 400 mcg limit by itself (NIH ODS, Selenium). So a daily handful on top of a selenium capsule is worth a count. A nut's content varies with the soil it grew in, which is why a label cannot be compared with a nut.
- Check the selenium line on each product
- Treat Brazil nuts as a seasoning, not a snack bowl
- Add food and pills together
What are the signs of too much selenium?
Hair and nail loss, a garlic smell on the breath and upset stomach are the signs NIH lists for long-term intakes above 400 mcg (NIH ODS, Selenium).
The label's 50 mcg is far from that. The signs appear with high intakes over time. If you notice them, stop and tell your pharmacist or clinician which products you use. See the side effects page for the label's own caution.
Selenomethionine is the form the label prints. The label does not say how much of the capsule weight it is.
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See packsHow should I add selenium across my products?
Write each product's selenium in mcg, add the nuts, and compare with 400.
Two Reviralis capsules (50 mcg) plus a multivitamin (55 mcg) plus a separate selenium pill (200 mcg) is 305 mcg before any food. Still under 400, but with little room.
This one and the other lines sit on the Supplement Facts page and in the trace minerals group. Keep taking any prescribed medicine, including an antiviral, and ask your pharmacist about your own list. No source tests Reviralis itself.
FAQ01
Reviralis questions people ask
How much selenium is in Reviralis?
The label prints selenium as L-selenomethionine, 50 mcg per two capsules, or 91% of the Daily Value. The adult need is 55 mcg and the upper limit is 400 mcg, so 50 mcg is well under the limit.
What is the selenium upper limit?
NIH sets the adult upper limit at 400 mcg a day from food and supplements together. Long-term intakes above it can cause hair and nail loss and garlic-smelling breath. Count food, multivitamins and any single-nutrient pills.
Are Brazil nuts too high in selenium?
They can be. NIH lists Brazil nuts as the richest food source, and an ounce can hold several hundred mcg. Eating them daily on top of a selenium supplement can pass the 400 mcg limit.
What is selenomethionine?
It is selenium bound to the amino acid methionine, a form found in foods and used in supplements. Reviralis prints L-selenomethionine as the form of its 50 mcg line. The label does not say how much is absorbed.
Who wrote this02
Written and reviewed by
Pages built from the label, the sales page and linked NIH, CDC, FDA, FTC, Mayo Clinic and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site for a U.S. stocking partner for Reviralis. It is not the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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