Sodium Selenite

Generally Safe MineralSynthetic

Sodium Selenite is a synthetic mineral used in dietary supplements. Safety rating: Generally Safe. It is generally considered safe for most people at standard doses. Found in 0 supplements in the GoodSupp database. A chemical compound containing selenium used as a source of the essential mineral selenium.

0 Products use this
Generally Safe Safety rating
Mineral Category
No Natural origin

Safety Verdict: Generally Safe

High doses may be toxic.

What is Sodium Selenite?

A chemical compound containing selenium used as a source of the essential mineral selenium.

Common Names Sodium Selenite
Type Mineral
Origin Synthetic / Manufactured
Safety Rating Generally Safe

Why is Sodium Selenite used in supplements?

It is added to supplements to provide selenium, an essential trace mineral.

Role in supplements: Mineral compound — provides a specific mineral in a bioavailable form the body can absorb.

Should you be concerned about Sodium Selenite?

Generally no. Sodium Selenite is considered safe for most people at typical supplement doses. Some individuals may want to be aware of minor sensitivities.

High doses may be toxic.

Low risk. Generally safe for most people in supplement amounts.

Related Ingredients
Frequently Asked Questions
Is Sodium Selenite safe in supplements?

Sodium Selenite is rated generally safe for most people at amounts commonly found in supplements. While the overall safety profile is favorable, some individuals may experience minor sensitivities. High doses may be toxic. Consult your healthcare provider if you have specific concerns.

What is Sodium Selenite and why is it in my supplement?

A chemical compound containing selenium used as a source of the essential mineral selenium.

Is Sodium Selenite natural or synthetic?

Sodium Selenite is synthetically produced, meaning it is manufactured through chemical processes rather than directly extracted from natural sources. Synthetic ingredients are extremely common in supplements and are not inherently less safe than natural alternatives. In many cases, synthetic production allows for higher purity and more consistent quality. The FDA regulates both natural and synthetic supplement ingredients under the same safety standards. GoodSupp rates ingredients based on their actual safety data regardless of whether they're natural or synthetic.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.