Selenium Solution 100 mcg by Allergy Research Group

If your Selenium, Serum is low or you eat a very low‑selenium diet (little seafood, eggs, or Brazil nuts), liquid selenium helps you replete gently. It’s also practical if you prefer drops to pills, have trouble swallowing, or need precise, smaller increments. People with autoimmune thyroiditis and high Thyroid Peroxidase Antibodies (TPO Ab, the marker of thyroid autoimmunity) sometimes use selenium under clinician guidance, especially when status is low.

Selenium is required to build selenoproteins like glutathione peroxidase (an enzyme that clears peroxides to protect cells), thioredoxin reductase (a redox regulator), and deiodinases (the enzymes that convert T4 to the active thyroid hormone T3). Sodium selenite is an inorganic form that the body converts directly into these proteins without being stored nonspecifically in tissues, which is one reason clinicians pick it for targeted repletion.

Each 1/2 teaspoon provides 100 mcg. The label suggests three servings daily, but many adults land in the 100–200 mcg per day range for maintenance; use higher intakes only if your level is low and you’re being monitored. Take with or without food, any time of day. If you use high‑dose vitamin C (1,000 mg or more), separate by a few hours to avoid reducing selenite’s absorption.

If your Selenium, Serum is already high, skip extra selenium. Hair or nail brittleness, a metallic taste, or gastrointestinal upset can signal excess. Pregnant or breastfeeding adults should stay closer to maintenance dosing unless a clinician is following labs. Those on dialysis or with significant kidney disease need individualized dosing. Selenium is not for cancer prevention; large trials didn’t show benefit.

Recheck Selenium, Serum after 8 to 12 weeks to confirm you’re in range without creeping into excess. If you’re taking it for thyroid reasons, track TSH (the pituitary signal to the thyroid), Free T4, and TPO Ab alongside symptoms. Expect antioxidant enzyme activity to improve within 4 to 8 weeks once intake is adequate.