Trace Minerals Research Ionic Selenium 300 mcg
Brand: Trace Minerals Research · Form: LIQUID, SUPPLEMENT FORM [E0165]
Our assessment
The evidence shows that selenium is an essential trace mineral, but the data provided does not include any studies or specific findings on the 300 mcg dose from Trace Minerals Research. Data not available on the efficacy of this specific product. For general selenium guidance, the RDA is 55 mcg for adults, and the Tolerable Upper Intake Level is 400 mcg daily [NIH ODS].
How it works
Selenium is a key component of selenoproteins, which are enzymes that help protect your cells from oxidative damage and support thyroid hormone metabolism [NIH ODS]. Think of it as a helper for your body's antioxidant defense system. Data not available on any specific mechanisms for the ionic form in this product.
Safety profile
FDA received 694 adverse event reports for selenium supplements. Side effects include nausea, vomiting, and hair loss at very high doses [FDA data]. Chronic intake above 400 mcg daily can lead to selenosis, a condition causing brittle nails and a garlic breath odor [NIH ODS]. Data not available on side effects specific to this brand.
Our recommendation
For most adults, a 300 mcg dose is below the tolerable upper limit but significantly exceeds the RDA of 55 mcg. Only use this dose if you have a confirmed deficiency or under medical supervision. Data not available to support general use at this level. Choose a standard 55-200 mcg dose for daily maintenance [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Trace Minerals Research |
|---|---|
| Serving Size | |
| Contents | 2.0 fl. Oz. 59.0 mL |
| Market Status | Off Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide