Get Selenium Online

Selenium deficiency occurs when the body does not get enough selenium from diet or absorption. People at higher risk include those with malabsorption conditions such as Crohn's disease, people relying on parenteral nutrition, those living in regions with selenium-poor soil, and people with HIV.

Selenium is required for the enzymes that convert inactive thyroid hormone (T4) into its active form (T3). Low selenium can impair this conversion and may worsen autoimmune thyroid conditions such as Hashimoto's thyroiditis.

Common symptoms include fatigue, muscle weakness, hair thinning or loss, and a weakened immune system. Severe, prolonged deficiency can lead to Keshan disease, a form of heart muscle disease, or Kashin-Beck disease affecting joints and bones.

Dosing varies based on the severity of deficiency and individual patient factors. A physician will determine the appropriate dose based on your lab results and clinical history. The tolerable upper intake level for adults is 400 micrograms per day, and supplementation above recommended levels requires medical supervision.

Yes. Selenium toxicity (selenosis) can cause symptoms such as hair and nail brittleness or loss, gastrointestinal upset, fatigue, and in severe cases neurological effects. This is why supplementation should always be guided by a physician and laboratory monitoring.

A physician will typically review your serum selenium level or assess your risk factors before prescribing. Follow-up lab testing may be recommended to confirm that levels have normalized and to avoid over-supplementation.

Doctronic uses an AI-powered evaluation to gather your symptoms and health history, then routes your case to a licensed physician who reviews the information and creates a personalized treatment plan, which may include a prescription if appropriate.

Yes. Doctronic connects you with licensed physicians who are board-certified and legally authorized to prescribe in your state. All consultations are doctor-reviewed, regularly audited for quality, and fully HIPAA-compliant to protect your privacy.