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Supplement Facts & Directions

Supplement Facts

Serving Size: 1 Capsule
Servings Per Container: Varies
Amount Per Serving % Daily Value*
Selenium (elemental) 200 mcg
   (from 61 mg Selenium Yeast)

* Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value Not Established
‡ These supplement facts may vary from the product you receive. Please call for exact numbers.

Other Ingredients: Mannitol, Gelatin Capsule (Bovine Source)


Free of: Added Sugar, Soy, Dairy, Gluten, Corn & Additives.

Directions: As a dietary supplement, take one capsule daily, preferably with a meal or as directed by a physician.

Warning: If you are pregnant, nursing, taking any medications, or have any medical conditions consult your physician before use. Persons living in areas of high soil selenium, such as the Dakotas, should consult a physician prior to use. Keep out of reach of children.

Product Details

What Is Selenium and What Does It Do?

Selenium is a trace element that occurs naturally in soil, water, and certain foods. It is an essential mineral for life, meaning the body must acquire it through dietary sources. Selenium is a critical component of selenoproteins, a group of proteins with antioxidant properties that help protect cells from free radical damage. The body also needs selenium for proper thyroid, immune system, and reproductive function. Additionally, it plays a role in fundamental cell processes, such as DNA synthesis.

Potential Benefits of Selenium Supplements

Selenium Supplements’ Antioxidant Properties

Selenium is a primary factor in the body's antioxidant defense system. It works in tandem with other antioxidants like glutathione to neutralize free radicals. These unstable molecules serve several health functions. However, too many of them cause oxidative stress that can damage cells and contribute to various health issues, including chronic illnesses and aging. Selenium helps ensure the body has the proper balance by neutralizing excess radicals. Selenium’s antioxidant capacity may also improve memory and support cognitive health.

Selenium Supplements and Immune System Support

Selenium is crucial for immune function, and a selenium deficiency can impair the immune response. Selenium also supports the production and enhances the activity of various immune cells, including T cells, B cells, and natural killer (NK) cells. These cells play pivotal roles in recognizing and eliminating pathogens such as bacteria, viruses, and abnormal cells. Selenium has anti-inflammatory properties that may help modulate the immune response. Chronic inflammation can exhaust the immune system by continually activating immune cells, impairing immune cell communication, and increasing the body’s susceptibility to infection.

Selenium Supplements and Thyroid Health

The thyroid gland regulates numerous physiological functions by producing hormones that influence the metabolism, growth, and development. It contains more selenium than any other organ in the body. Selenium is essential for producing thyroid hormones and converting thyroxine (T4) into triiodothyronine (T3). T4 is the inactive form of thyroid hormone that must convert into T3 before the body can use it. T3 is more biologically active and has a more potent effect on metabolism. Selenium is crucial for thyroid function, and several studies identified a connection between selenium deficiencies and various thyroid conditions.

Selenium Supplements and Heart Health

Selenium dietary supplements may support heart health through several mechanisms. It acts as an antioxidant and boosts glutathione production to reduce oxidative stress and free radical damage. It also has anti-inflammatory properties. Both oxidative stress and inflammation contribute to plaque buildup in the arteries. Research also shows that insufficient selenium increases the risk of heart health problems.

Potential Side Effects of Selenium Dietary Supplements

Some individuals may experience stomach discomfort or headaches while taking selenium supplements. Although selenium is essential for health, taking too much of any supplement can lead to adverse effects. Ingesting too much selenium may cause selenium toxicity. Symptoms of this include diarrhea, garlic breath, skin rashes, brittle hair and nails, and hair loss.

Selenium may interact with certain medications, including anti-coagulants, blood pressure medication, statins, and thyroid medication. Individuals should consult a physician before starting any new supplements to avoid unwanted medication interactions.


Tested by Accredited 3rd Party Labs

PureBulk's supplements are tested by accredited third party labs in the USA to ensure their identity, purity, and potency. To receive a copy of these test results or any other PureBulk supplement please fill out the COA request form found here.

*NOTE: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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