Iodine Urine Test, 24-Hour

The Iodine Urine Test, 24 Hour Collection, measures the total amount of iodine excreted in your urine over a full 24 hour period. Iodine is an essential trace mineral required for the production of thyroid hormones, which regulate metabolism, energy levels, body temperature, and overall endocrine balance. Because the body does not store large amounts of iodine, daily intake and excretion levels are important indicators of nutritional status.

This 24-hour test provides a more comprehensive assessment than a single random urine sample. Since iodine levels can fluctuate throughout the day depending on diet and hydration, collecting urine over a full 24-hour period offers a more accurate picture of average iodine status. This makes it particularly useful for evaluating long-term intake and potential deficiencies.

Iodine plays a critical role in the production of thyroxine, T4, and triiodothyronine, T3. Too little iodine can impair thyroid hormone production and contribute to hypothyroidism, goiter, fatigue, weight gain, and cold intolerance. Excessive iodine intake may also disrupt thyroid function in some individuals. Maintaining proper iodine balance is essential for healthy thyroid regulation.

This test is especially helpful for individuals with thyroid concerns, those adjusting their diet or supplementation, and anyone wanting to confirm adequate iodine intake. By understanding your iodine status, you can take proactive steps to support thyroid health and overall wellness.

What Is Included In This Test?

This test includes:

• Measurement of total iodine excretion over a 24-hour urine collection
• Clear numerical results for clinical interpretation

Why Does This Test Matter?

Iodine is essential for proper thyroid hormone production. Without adequate iodine, the thyroid cannot produce sufficient T3 and T4, which may lead to metabolic slowing and hormonal imbalance.

Iodine deficiency remains a concern in individuals with restricted diets, low seafood intake, or limited use of iodized salt. On the other hand, excessive supplementation can also disrupt thyroid function. This test helps determine whether intake levels are appropriate.

Accurate iodine assessment is important when evaluating unexplained thyroid dysfunction. In some cases, abnormal thyroid results may be related to iodine imbalance rather than primary thyroid disease.

Monitoring iodine levels can also be valuable during dietary changes, pregnancy planning, or while taking iodine containing supplements.

Who Should Consider This Test?

You may consider this test if you:

• Have symptoms of hypothyroidism or hyperthyroidism
• Have unexplained thyroid lab abnormalities
• Follow a restricted or specialized diet
• Avoid iodized salt or seafood
• Are taking iodine supplements
• Are pregnant or planning pregnancy
• Have a history of thyroid enlargement or goiter
• Live in an area with known iodine deficiency
• Are monitoring thyroid health
• Want to confirm balanced iodine intake

Convenient, No-Appointment Testing

To complete your test:

1. Order online through our website
2. Use the lab locator to find a nearby testing location
3. Walk in; no appointment required
4. Access your results securely in your HealthLabs.com account within one to three business days

110% Price Guarantee!

If you find the same test for a lower price from a comparable provider, contact us. We not only match the price, we beat it by an additional 10 percent of the difference.