selenium 200 mcg

Osterly Market Selenium 200 mcg

120 capsules
$18.99
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selenium 200 mcg

Osterly Market Selenium 200 mcg

$18.99
Size120 capsules

200 mcg chelated selenium.

The standard selenium dose in a chelated form, as a single ingredient.

What it's for

Selenium is a trace mineral your body needs for thyroid hormone conversion and for the glutathione peroxidase enzymes that handle oxidative stress. Requirements are small and the gap between enough and too much is narrower than for most minerals — which is why the dose here is deliberately conservative.

How to take it

  • One capsule daily, with or without food
  • 200 mcg is a full supplemental dose, not a starting point to build on
  • Check your multivitamin before adding this. Selenium stacks, and the upper limit is 400 mcg a day for adults
  • Long-term excess causes hair and nail brittleness. Do not take two selenium products at once

On the label

  • 200 mcg per capsule, chelated
  • 120 vegetarian capsules
  • Single active

What this is not

  • Not to be stacked with a multivitamin that already contains selenium
  • Not a thyroid treatment
  • Not a high-dose product, deliberately

The straight answer

Selenium has a real upper limit and it is not far above this dose. If your multivitamin already has selenium in it, check the total before adding this.


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These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. Talk to your doctor before starting any supplement, especially if you are pregnant, nursing, or taking prescription medication.

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