Everything you need to know about zinc and selenium for thyroid

Thyroid Supplements: The Essential Role of Selenium, Iodine and Zinc in Thyroid Health

When it comes to maintaining optimal thyroid health, the right nutrients play a crucial role. Two essential minerals, selenium alongside zinc, are particularly important for thyroid function. Let’s explore why these minerals are vital and how to choose the best supplements to support your thyroid health.

Importance of Selenium, Iodine and Zinc for a Healthy Thyroid

1. Selenium: A Thyroid Superhero
● Selenium’s Impact on Thyroid Function: Selenium regulates thyroid hormone activity and metabolism efficiently. It helps convert the inactive thyroid hormone T4 into its active form, T3. Sufficient selenium also protects the thyroid tissue from oxidative damage, synthesis of thyroid hormones being a highly oxidising process.

● Functional Medicine Insight: Selenium is a component of several selenoproteins that are essential for the conversion of T4 into T3 and protection from oxidative damage. Maintaining sufficient selenium prevents thyroid inflammation and underactivity.

2. Iodine: The Essential Element
● Why is Iodine Important for Thyroid: Iodine forms the backbone of thyroid hormone molecules. These hormones—primarily thyroxine (T4) and triiodothyronine (T3)—govern metabolism and body functions. Deficiency results in reduced hormone production, causing enlargement of the thyroid (goiter) and hypothyroidism.

● Functional Medicine Insight: It is the key substrate for hormone synthesis. The thyroid draws iodine from blood and binds it to tyrosine to form hormones. Adequate iodine levels support optimal hormone production and prevent imbalances that can affect overall health. A steady iodine supply is critical for energy balance and total body wellness.

3. Zinc: A Key Regulator
● Why Is Zinc important for Thyroid: Zinc plays a regulatory role in hormone production and balance. It supports the synthesis of thyroid hormones and helps regulate their release into the bloodstream. It boosts immunity, reducing risk of autoimmune thyroid diseases.

● Functional Role: It fine-tunes enzyme reactions that create and activate thyroid hormones. It also affects the thyroid gland’s ability to absorb iodine, further supporting thyroid function. Crucially, zinc assists peripheral conversion of T4 into active T3.

Top Selenium, Iodine and Zinc Supplements for a Healthy Thyroid

To support thyroid function effectively, opt for supplements with superior bioavailability and balanced nutrients. Let’s look at some preferred supplement types for each nutrient:

Selenium Supplements:
● This natural yeast-based selenium is efficiently absorbed by the body. It promotes antioxidant protection and thyroid cell function.

● This organic compound is the preferred option for selenium intake. It’s known for promoting hormonal balance and immune defense.

Iodine Supplements:
● Iodine drops and tablets are practical sources of iodine. They usually contain potassium iodide or iodate, both effective for supporting thyroid hormone production. Look for products that provide iodine in a bioavailable form.

● Seaweed-based kelp is a potent natural iodine source. It offers plant-based iodine and trace minerals. Kelp supplements often come in capsule or powder form and can also provide additional trace minerals beneficial for thyroid health.

Zinc Supplements:
● This chelated zinc form provides effective thyroid and immune benefits. It’s often recommended for its superior bioavailability.

● This form is gentle and efficient for supplementation. It supports thyroid hormone production and helps maintain overall thyroid health.

Tips for Selecting the Best Thyroid Supplements

● Check the Form: Opt for supplements that use well-absorbed forms of selenium, iodine and zinc, such as selenium yeast, L-selenomethionine, zinc picolinate, or zinc citrate.

● Always buy from trusted brands with clear labeling and safety certifications.
● Consider Dosage: Follow recommended dosages and consult with a healthcare provider to determine the appropriate amount.

Wrapping It Up

Both selenium and zinc serve as cornerstones for thyroid and metabolic balance. Regular supplementation under guidance keeps thyroid performance optimal and stable.

Pro Tip: Before starting any new supplement, it’s always a good idea to consult with a healthcare professional, especially if you have existing health conditions or are taking other medications.

Nourish your thyroid with essential minerals and feel the difference in your energy and wellness. Wishing you strong thyroid health and vitality!

References:
1. Triggiani V, Tafaro E, Giagulli VA, Sabbà C, Resta F, Licchelli B, Guastamacchia E. Role of iodine, selenium and other micronutrients zinc and selenium for thyroid in thyroid function and disorders. Endocr Metab Immune Disord Drug Targets. 2009 Sep;9(3):277-94. doi: 10.2174/187153009789044392. Epub 2009 Sep 1. PMID: 19594417. – https://pubmed.ncbi.nlm.nih.gov/19594417/

2. Severo JS, Morais JBS, de Freitas TEC, Andrade ALP, Feitosa MM, Fontenelle LC, de Oliveira ARS, Cruz KJC, do Nascimento Marreiro D. The Role of Zinc in Thyroid Hormones Metabolism. Int J Vitam Nutr Res. 2019 Jul;89(1-2):80-88. doi: 10.1024/0300-9831/a000262. Epub 2019 Apr 15. PMID: 30982439. – https://pubmed.ncbi.nlm.nih.gov/30982439/

3. Zimmermann MB, Boelaert K. Iodine deficiency and thyroid disorders. Lancet Diabetes Endocrinol. 2015 Apr;3(4):286-95. doi: 10.1016/S2213-8587(14)70225-6. Epub 2015 Jan 13. PMID: 25591468. – https://pubmed.ncbi.nlm.nih.gov/25591468/