Selenium
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
Certifications & Testing
Other Ingredients
Microcrystalline Cellulose, Rice Protein, Brown Rice, Autolyzed Yeast Extract, Yeast, Stearic Acid, Silicon Dioxide, Hypromellose
Recommended Use
Suggested use: Adults take 1 tablet daily with a beverage. May be taken any time of day, even on an empty stomach.
Warnings
Keep out of reach of children.
Frequently Asked Questions
What is MegaFood Selenium's Formulate score?
MegaFood Selenium scores 84 out of 100 (grade A-) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is MegaFood Selenium worth it?
MegaFood Selenium scores 84/100 (grade A-). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in MegaFood Selenium?
Each serving contains Selenium (50 mcg), Food & Herb Blend (345 mg). Serving size: 1 Tablet(s). 60 servings per container.
How do I take selenium?
Suggested use: Adults take 1 tablet daily with a beverage. May be taken any time of day, even on an empty stomach.
Who makes Selenium?
Selenium is made by MegaFood. See Formulate's full grade and product lineup for MegaFood on its brand page.
Is MegaFood Selenium third-party tested?
MegaFood lists the following certifications and testing for this product: Vegan, Certified Vegan Vegan.org, Vegetarian, Gluten-Free, Dairy-Free.
Related Supplements
Track selenium in your stack
Build a personalized supplement stack free in your browser — no install. Flag dose overlaps and interactions, and keep every product scored against the latest evidence.
Is Selenium right for your goals?
Two questions, then every ingredient graded against what you're actually trying to do — plus what it costs per effective dose.
Build my stack2 questions · free · no account needed to start
Also on iPhone — get the free app
Evidence-based supplement guides, no spam
We send a short digest when new guides drop — nothing else. No affiliate pushes, no sponsored content, unsubscribe anytime.
Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.