Capsules · 100 capsules · 100 servings · $0.21/serving
Serving Size:
1 Capsule
Amount Per Serving:
Selenium (as L-selenomethionine) ... 200 mcg
Other Ingredients:
Microcrystalline cellulose, vegetarian capsule (hydroxypropyl methylcellulose, water), and L-leucine.
Made without common allergens | Non-GMO | Vegan
No synthetic colors, flavors, or preservatives
CAUTION: Consult with your physician if you are pregnant or nursing, or have any medical condition, or taking prescription drugs, or under the age of 18 years.
KEEP OUT OF REACH OF CHILDREN.
Adults: 1 capsule daily or as directed by a healthcare professional.
Children: As directed by a healthcare professional. Not to be consumed by those under age 14.
Ingredient information is provided above. A clear label image is not available yet.
View original supplier image (quality may be limited)Source: Fullscript supplier catalog · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Seleno Met by Klaire Labs/SFI Health delivers 200 mcg of selenium as L-selenomethionine, an organically bound form that mirrors how selenium occurs naturally in food and supports superior retention compared to inorganic selenium salts. This trace mineral plays a key role in antioxidant enzyme function, thyroid hormone metabolism, and immune system support. It's well-suited for individuals seeking a clean, bioavailable selenium option.
Why It's Worth Considering: Klaire Labs formulates to practitioner standards with minimal excipients, and L-selenomethionine is among the most researched forms for tissue incorporation and steady-state plasma levels.
Adults: 1 capsule daily or as directed by a healthcare professional.
Children: As directed by a healthcare professional. Not to be consumed by those under age 14.
For maintenance: 100-200mcg daily (selenomethionine form preferred). For thyroid support: 200mcg. The RDA is 55mcg but most functional medicine practitioners recommend 100-200mcg. Do NOT exceed 400mcg/day, selenium has a narrow therapeutic window and excess causes selenosis (hair loss, nail brittleness, GI issues).
Yes, selenium is critical for thyroid function. It's required for the enzyme that converts inactive T4 to active T3, AND it protects thyroid cells from oxidative damage. In Hashimoto's, 200mcg selenium daily reduces TPO antibodies by 20-40% in clinical trials. It's one of the most evidence-based supplements for thyroid health.
One Brazil nut contains 70-90mcg selenium, so 2 nuts/day provides a therapeutic dose. However, selenium content varies dramatically by soil (some nuts have 10mcg, others have 300mcg). If you rely on Brazil nuts, be cautious about overconsumption, 4-5 large nuts could exceed 400mcg. A supplement provides a consistent, known dose.
Ask Gabriel for personalized stacking recommendations.
No significant interactions identified. Always consult your healthcare provider.
† 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.
