--- title: Iodine Test type: test id: iodine url: "https://www.test-well.com/tests/iodine" price_usd: 39.99 lab_fee_usd: 6 all_in_usd: 45.99 category: Vitamins & Nutrients sample: Urine sample fasting_required: false results_in: "3–7 business days" labs: - Labcorp orderable: true reviewed_at: 2026-09-14 order_url: "https://www.test-well.com/cart?add=iodine&utm_source=ai_agent&utm_medium=markdown" --- # Iodine Test > Measures iodine levels — essential for thyroid hormone production and metabolism, measured from a urine sample. At TestWell it costs $39.99 plus a $6 lab fee, needs no fasting, and results post in 3–7 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Labcorp. ## Key facts | Fact | Value | | --- | --- | | Price | $39.99 + $6 lab processing fee per order ($45.99 all-in for this test alone) | | Sample | Urine sample | | Fasting | Not required | | Results | 3–7 business days | | Labs | Labcorp | | Biomarkers measured | 1 | | Physician authorization | Included — no doctor's visit, referral or insurance needed | | Payment | Card, HSA or FSA; cash-pay only (no insurance billing) | ## What does the Iodine test tell you? Measures iodine levels — essential for thyroid hormone production and metabolism. Iodine is a trace element required for thyroid hormone production. Thyroid hormones regulate metabolism, growth, and development. Iodine deficiency is the most common preventable cause of intellectual disability worldwide and can cause goiter and hypothyroidism. While iodized salt has reduced deficiency in many countries, it remains a concern for those on salt-restricted diets or who avoid processed foods. **Clinical use:** Vitamin and nutrient testing identifies deficiencies that can drive fatigue, immune dysfunction, neurological symptoms, and long-term disease risk — and confirms that supplementation is working. ## Who should order it? Anyone with restrictive diets (vegan, low-fat, low-carb), malabsorption conditions, fatigue, hair loss, mood changes, or currently supplementing and wanting to verify dosing. ## Biomarkers measured - Iodine (Urine) ## Price by lab | Lab | Test price | All-in (with $6 fee) | Notes | | --- | --- | --- | --- | | Labcorp | $39.99 | $45.99 | Choose at checkout; walk-in patient service centers nationwide (not NY/NJ) | Rhode Island is not served. Prices are identical online and in the lab; no draw fee or physician fee is added. ## How much does a Iodine test cost? A Iodine test costs $39.99 at TestWell — $45.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Ordered directly from the labs' own consumer sites, the same test lists at $52.00 at Quest Health and $69.00 at Labcorp OnDemand (list prices checked Sep 12, 2026). Hospital outpatient labs typically bill around $140.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible. | Where you order | Price | One test, all-in | Notes | | --- | --- | --- | --- | | TestWell (drawn at Quest or Labcorp) | $39.99 | $45.99 | Includes the one $6 lab processing fee, charged once per order | | Quest Health (Quest Diagnostics' own site) | $52.00 | $52.00 | [list price checked 2026-09-12](https://www.questhealth.com/product/iodine-test/16601M.html) | | Labcorp OnDemand (Labcorp's own site) | $69.00 | $69.00 | [list price checked 2026-09-12](https://www.ondemand.labcorp.com/lab-tests/iodine-test) | | Hospital outpatient lab, self-pay (typical) | $140.00 | $140.00 | Reference figure; hospital charges vary widely by facility and are often higher | Lab test codes: Quest test code 16599 · Labcorp test no. 070034. ## How do you prepare? No fasting required. Random urine sample. ## Related conditions - Vitamin deficiency (E56.9) - Nutrient deficiency (E63.9) ## Common questions about the Iodine test ### How long do Iodine results take? Most Iodine results are available in 3–7 business days after your specimen arrives at the lab. You'll get an email the moment results are ready, with everything viewable in your TestWell portal. ### What sample is collected for the Iodine? Urine sample. Follow the sample-collection instructions included with your order kit. ### How much does the Iodine cost without insurance? On TestWell, the Iodine is $39.99. Quest Direct lists comparable tests at $52. Walk-in hospital labs typically bill $140 or more without insurance. Insurance is not required — pay one all-in price. ### Do I need to fast before the Iodine? No fasting required for the Iodine. No fasting required. Random urine sample. ### Where can I get the Iodine done? The Iodine is available at Labcorp patient service centers nationwide. Order online at TestWell, pick your preferred lab, and we'll generate a digital requisition for the location closest to you. ## How to order 1. Add to cart: https://www.test-well.com/cart?add=iodine&utm_source=ai_agent&utm_medium=markdown 2. Create an account or sign in, confirm your state and preferred lab, pay by card, HSA or FSA. 3. A licensed physician authorizes the order (usually within minutes); the requisition arrives by email. 4. Walk into any Labcorp patient service center — no appointment needed at most sites. 5. Results post to your TestWell portal in 3–7 business days with reference ranges and flags. ## Related - [Biotin (Vitamin B7)](https://www.test-well.com/tests/biotin) — $259.99 - [Calcium](https://www.test-well.com/tests/calcium) — $26.99 - [Copper](https://www.test-well.com/tests/copper) — $31.99 - [CoQ10 (Coenzyme Q10)](https://www.test-well.com/tests/coq10-coenzyme-q10) — $74.99 - [Folate (Vitamin B9)](https://www.test-well.com/tests/folate) — $32.99 - [All Vitamins & Nutrients tests](https://www.test-well.com/tests/category/vitamins-nutrients) - [Full test directory](https://www.test-well.com/tests/directory) --- Medically reviewed by Youmna DiStefano, MD (Medical Reviewer, TestWell); last reviewed 2026-09-14. Review policy: https://www.test-well.com/reviewers/youmna-distefano-md Canonical page: https://www.test-well.com/tests/iodine Machine-readable catalog: https://www.test-well.com/api/catalog.json · MCP server: https://www.test-well.com/mcp · Overview for agents: https://www.test-well.com/llms.txt Prices are cash-pay, in USD, and include physician authorization; every order adds one flat $6 lab processing fee. Educational content is not a diagnosis — discuss results with a clinician.