Best Selenium Supplements for Immune Support of 2025

Elisa Drew Avatar
Elisa Drew
Last Updated: Jan 6, 2025

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Selenium is an essential mineral that plays a vital role in immune function. It is also a powerful antioxidant that helps protect cells from damage caused by free radicals. Selenium supplements are a convenient way to ensure adequate intake of this important nutrient. They are available in various forms, including capsules, tablets, and liquid drops. Some selenium supplements are formulated with other immune-supporting ingredients like vitamin C and zinc. While a balanced diet can provide adequate selenium intake, some people may benefit from supplementing with selenium, especially those with compromised immune systems or those living in areas with low selenium levels in the soil.

At a Glance: Our Top Picks

Force Factor Selenium Immune Support 200mcg Cover #TOP 1
Force Factor Selenium Immune Support 200mcg
ftb score rating icon 9.8
Pure Encapsulations Selenium Supplement Cover #TOP 2
Pure Encapsulations Selenium Supplement
ftb score rating icon 9.7
Global Healing Selenium Supplement with Organic Ingredients (60 Capsules) Cover #TOP 3
Global Healing Selenium Supplement with Organic Ingredients (60 Capsules)
ftb score rating icon 9.5

Top 10 Selenium Supplements for Immune Support

#TOP 1

Force Factor Selenium Immune Support 200mcg

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Force Factor Selenium Immune Support 200mcg Cover
Force Factor Selenium Immune Support Supplement, Selenium 200mcg Capsules to Support Immune Defense, Immunity Supplement, Vegan, Non-GMO, 120 Capsules

Force Factor Selenium Capsules are designed to enhance your immune defense. Each capsule contains 200mcg of selenium, which plays a vital role in maintaining healthy cellular function and helps shield your cells from oxidative stress. This supplement also provides antioxidant support, helping to combat free radicals that can harm your body due to various factors like diet and pollution. Plus, it’s vegan-friendly and free from artificial additives, making it a great choice for those who prioritize high-quality health supplements. With these capsules, you can better support your overall health and wellbeing.

What We Like
Boosts immune system
Supports cellular health
Antioxidant protection
Vegan and non-GMO
Made in GMP-certified facilities

Pure Encapsulations Selenium Supplement

Pure Encapsulations Selenium Supplement Cover
Pure Encapsulations Selenium - 200 mcg - for Healthy Cellular Function, Immune System & Antioxidant Defenses - Mineral Supplement - Vegan & Gluten Free - 60 Capsules

Get immune system support, healthy blood flow, and antioxidant support with Pure Encapsulations Selenium Supplement. It helps protect normal cell function, promotes healthy blood flow, and scavenge free radicals. The supplement is made with premium ingredients and is free from wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.

What We Like
Provides immune system support
Promotes healthy blood flow
Scavenges free radicals to protect normal cell function
Made with premium ingredients
Free from many common allergens and unnecessary additives

Global Healing Selenium Supplement with Organic Ingredients (60 Capsules)

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Global Healing Selenium Supplement with Organic Ingredients (60 Capsules) Cover
Global Healing Selenium 200mcg, Selenium Supplement with Organic Ingredients, Antioxidants for Thyroid Support and Immune Health, Non-GMO & Gluten-Free, Selenium 200 mcg for Men & Women (2 Oz)

Global Healing Selenium Supplement with Organic Ingredients is a powerful antioxidant that defends against free radicals to protect normal cell function, maintain cardiovascular health, and support a healthy thyroid and immune system. The organic and vegan capsules are made from certified organic mustard seeds for maximum absorption and are free from gluten, soy, dairy, GMOs, sugar, artificial flavors, synthetic dyes, and toxic fillers. Manufactured in the USA in a cGMP certified facility, the supplement comes with a 30-day guarantee.

What We Like
Powerful antioxidant for maximum thyroid support
Supports normal cardiovascular health and circulation
Helps balance hormones and strengthen the immune system
Organic and vegan capsules made from certified organic mustard seeds for maximum absorption
Manufactured in the USA in a cGMP certified facility with a 30-day guarantee

Bronson Basics Selenium 200mcg Immune Support, 250 Tablets

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Bronson Basics Selenium 200mcg Immune Support, 250 Tablets Cover
Bronson Selenium 200 mcg Immune & Antioxidant Support Essential Mineral, 250 Vegetarian Tablets

Bronson Basics Selenium provides 200mcg of Selenium per tablet to support a healthy immune system and antioxidant health. The quality selenium supplement is Non-GMO, Gluten-Free and Soy-Free. Taking the supplement ensures that users receive enough of this important mineral that may not be available in food sources due to location and soil conditions. Bronson Basics Selenium is manufactured in-house at their state-of-the-art facility located in Hauppauge, New York, which complies with cGMP Premium Standards. The pioneers of Bronson Vitamins were pharmacists who witnessed the benefits of vitamins and mineral supplementation firsthand with their patients.

What We Like
Provides 200mcg of Selenium per tablet to support immune system and antioxidant health
Non-GMO, Gluten-Free and Soy-Free
Manufactured in-house at their state-of-the-art facility located in Hauppauge, New York, which complies with cGMP Premium Standards
#TOP 5

Nature's Bounty Selenium 200 mcg Tablets

Nature's Bounty Selenium 200 mcg Tablets Cover
Nature's Bounty Selenium, Supports Prostate and Immune System Health, 200 mcg, 100 Tablets

Nature's Bounty Selenium Tablets provide support for the prostate and immune system with a clinically studied dosage of 200 mcg of Selenium. These vegetarian-friendly tablets offer the convenience of just one tablet a day. Selenium is known for its benefits in maintaining a healthy prostate and boosting the immune system. With Nature's Bounty Selenium Tablets, you can easily incorporate this essential mineral into your daily routine to support your overall health and well-being.

What We Like
Prostate support
Boosts immune system
Vegetarian-friendly
#TOP 6

NUTRAHARMONY Thyroid Support Capsules

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NUTRAHARMONY Thyroid Support Capsules Cover
Thyroid Support for Women - Selenium 200 mcg | Zinc & Iodine | L-Tyrosine | Magnesium | Adaptogen Herbs - 21-in-1 Antioxidant & Immune Support - Vegan, Non-GMO, Lab Tested - 60 Capsules, Made in USA

NUTRAHARMONY Thyroid Support offers a comprehensive blend of 21 essential nutrients designed to boost thyroid health and overall wellness. With 200 mcg of Selenium, Iodine, and Zinc, this supplement helps enhance your immune system and protects your cells from damage. Additionally, the inclusion of adaptogenic herbs like Ashwagandha and Holy Basil promotes healthy thyroid function for both men and women. Made in the USA under strict quality control, you can trust the purity and effectiveness of each capsule, ensuring you receive the best support for your health needs.

What We Like
Comprehensive 21-in-1 formula
Supports immune health
Contains adaptogenic herbs
Made in the USA
Third-party tested

Solaray Yeast Free Selenium 200mcg, Healthy Immune System Support, 90 VegCaps

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Solaray Yeast Free Selenium 200mcg, Healthy Immune System Support, 90 VegCaps Cover
Solaray Yeast Free Selenium 200mcg, Selenium Capsules for Healthy Thyroid Function & Immune Support, High Absorption Supplement, Vegan, 90 Servings, 90 VegCaps

Support your immune system and thyroid function with Solaray Yeast Free Selenium 200mcg. Its high potency formula provides absorbable selenium in its superior form selenomethionine. Selenium is essential for the healthy functioning of the thyroid gland and may also support a healthy immune system, antioxidant processes, and cellular health. Solaray is committed to a cleaner planet by using 100% post-consumer resin recycled plastic bottles. This vegan and yeast-free supplement is lab verified for potency and purity and made in the USA.

What We Like
Provides high potency and absorbable selenium in its superior form selenomethionine
Supports a healthy immune system, antioxidant processes, and cellular health
Committed to a cleaner planet by using 100% post-consumer resin recycled plastic bottles
Vegan and yeast-free supplement, lab verified for potency and purity and made in the USA

Solgar Yeast-Free Selenium 200 mcg, 250 Tablets

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Solgar Yeast-Free Selenium 200 mcg, 250 Tablets Cover
Solgar Yeast-Free Selenium 200 mcg, 250 Tablets - Supports Antioxidant & Immune System Health - Non-GMO, Vegan, Gluten Free, Dairy Free, Kosher - 250 Servings

This Yeast-Free Selenium supplement provides antioxidant support and boosts immune system health. The gluten, wheat, dairy, soy, and sugar-free formula is vegan, kosher, and non-GMO. Each tablet contains L-selenomethionine, a yeast-free form of selenium, which is a component of the antioxidant enzyme glutathione peroxidase that helps to fight cell-damaging free-radicals. It also helps recycle Vitamin E, providing additional antioxidant support. Solgar has been committed to quality, health, and well-being for over 70 years, producing supplements made from only the finest raw materials.

What We Like
Yeast-free selenium provides antioxidant support and boosts immune system health.
Free of gluten, wheat, dairy, soy, and sugar, the vegan, kosher, and non-GMO supplement is accessible to people with dietary restrictions.
Each tablet contains L-selenomethionine, a yeast-free form of selenium that helps to fight cell-damaging free-radicals and recycle Vitamin E, providing additional antioxidant support.
#TOP 9

Pure Encapsulations Selenium Citrate Capsules

Pure Encapsulations Selenium Citrate Capsules Cover
Pure Encapsulations Selenium (Citrate) - for Immune System Support & Cellular Health - Antioxidant Supplement - Supports Blood Flow* - Gluten Free & Vegan - 180 Capsules

Pure Encapsulations Selenium Citrate Capsules are a hypoallergenic antioxidant supplement that supports immune health, healthy blood flow, and tissue elasticity. Selenium also acts as a natural antioxidant that delays oxidation of polyunsaturated acids. Made with only premium ingredients, these supplements are free from wheat, eggs, tree nuts and peanuts, gluten, artificial colors, flavors and sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers and preservatives.

What We Like
Supports immune health and healthy blood flow
Acts as a natural antioxidant to delay oxidation of polyunsaturated acids
Made with premium ingredients and free from common allergens and unnecessary additives
#TOP 10

Ultimate Selenium 90 Capsules - Your Solution for Optimal Health

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Ultimate Selenium 90 Capsules - Your Solution for Optimal Health Cover
Youngevity Ultimate Selenium + Cofactors - Essential Mineral Supplement for Immune Support, Antioxidant Defense, Thyroid Function, and Cellular Health (I-selenomethionine) - (90 Capsules)

Ultimate Selenium offers a natural solution to obtain selenium, an essential nutrient that is lacking in most people's diets. This dietary supplement provides a blend of fruit extracts, amino acids, and vitamins including A, C, D3, and E, to protect against cell-damaging free radicals and support a healthy body. With 90 servings per bottle, Ultimate Selenium also includes zinc and other antioxidant-rich nutrients. For best results, use it as part of a full nutritional program that includes Ultimate Classic and Ultimate EFA. Ultimate Selenium is a great source of antioxidants that can enhance immune function.

What We Like
Natural way to obtain selenium
Provides vitamins, fruit extracts, and amino acids to support a healthy body
90 servings per bottle
Great source of antioxidants
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Frequently Asked Questions (FAQs)

1. Does selenium help your immune system?

Selenium plays an important role in the health of your immune system. This antioxidant helps lower oxidative stress in your body, which reduces inflammation and enhances immunity. Studies have demonstrated that increased blood levels of selenium are associated with enhanced immune response.

2. How much selenium should I take for my immune system?

The safe upper limit for selenium is 400 micrograms a day in adults....How much selenium should you take?

3. Is it worth taking selenium supplements?

Selenium is a trace mineral that is essential to good health in small amounts. Higher selenium intake or status (levels in the blood) have been demonstrated to improve male fertility, provide some protection against bladder, lung, colorectal system, and prostate cancers, and have antiviral effects.

4. Can selenium supplements be harmful?

Extremely high intakes of selenium can cause severe problems, including difficulty breathing, tremors, kidney failure, heart attacks, and heart failure. The daily upper limits for selenium include intakes from all sources—food, beverages, and supplements—and are listed below.

Editor's Notes

During our selenium supplement for immune support research, we found 24 selenium supplement for immune support products and shortlisted 10 quality products. We collected and analyzed 80,819 customer reviews through our big data system to write the selenium supplements for immune support list. We found that most customers choose selenium supplements for immune support with an average price of $16.44.

The selenium supplements for immune support are available for purchase. We have researched hundreds of brands and picked the top brands of selenium supplements for immune support, including Force Factor, Pure Encapsulations, Global Healing Center, Bronson, Nature's Bounty. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Elisa Drew Avatar

Elisa Drew is a really professional copywriter specializing in baby products with five years of experience working as a pediatrician once. She has published a series of baby books purchased by over thirty thousand people in the United States.