Best Selenium Supplements Ranked for 2018 – Top 10 Brands

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Jump Ahead to the Best Selenium Products

The mineral content of your diet is largely dependent on the soil that grows your food. Today’s soils are becoming deplete of nutrients due to modern intensive agricultural practices that strip nutrients of soils, making vitamin and mineral deficiencies more common in developed nations – and in developing nations, it’s even more of a concern.

That is why it is important to be educated about the best vitamins and mineral supplements that could benefit you. One of the best minerals people can take to ensure their health is selenium, an essential trace mineral that has a multitude of health benefits. This guide is all about the best selenium supplements on the market.

What is Selenium?

Selenium is an essential mineral found naturally in some foods, soil and water. The richest selenium foods include brazil nuts, kidney, liver and fish. It exists in two forms, known as organic selenium and inorganic selenium – their names are descriptive of their sources.

For instance, organic selenium comes from a living source, such as fruit. Inorganic selenium comes from an inorganic source, such as soil. It is often found organically as selenoproteins such as glutathione peroxidase, selenocysteine and selenomethionine.

This essential mineral is necessary for reproduction, proper thyroid metabolism and DNA synthesis. Selenium deficiency is more common in countries with selenium-poor soil, such as China and the UK. Deficiency may be characterized by male infertility and development of chronic illnesses.

The best selenium supplements generally use a form of selenium known as selenomethionine, because this is the most common form found in body tissues. Selenium binds to methionine, a powerful antioxidant and essential amino acid, when it is incorporated into body tissues. Top selenium supplements can be found as capsules, tablets, in multivitamins and more.

Uses & Benefits of Selenium

Selenium is a trace mineral that is involved in a number of important roles in the human body. Some of the most significant selenium benefits include:

  • Overall health: Selenium is vital for a huge range of functions in the body, making it a very important mineral for human health. Some research has found that selenium is important for immune health, thyroid function, fertility, mood, and much more. Many people get enough selenium through their diet alone, but people with certain conditions including Crohn’s disease and HIV/AIDs are more at risk for selenium deficiency. A low level of selenium has been linked to poor immune function, cognitive decline and an increased risk of mortality – thus, it’s important to get enough selenium in your diet, or look to supplements for additional selenium.
  • Antioxidant & anti-inflammatory: Selenium has powerful antioxidant and anti-inflammatory properties. Antioxidants help to protect the body’s cells from damage caused by free radicals. Additionally, selenium also boosts the efficacy of other antioxidants like vitamin E, helping to improve antioxidant activity in the body. Selenium also has significant anti-inflammatory effects, helping to curb inflammation and lower the risk of a number of inflammation-related health concerns.
  • Cancer: Selenium may play a role in slowing the progression of cancers of the prostate, lungs, and liver. This is a bold claim, to be sure, and researchers are still evaluating the effects of selenium on cancer cell development – but so far, results are promising. Selenium essentially helps to locate and repair damaged DNA cells, which if left unchecked could lead to cancerous cell mutation. It’s thought that selenium may be particularly important for those with a family history of cancer, and those with weakened immune systems.
  • Cardiovascular health: Low levels of selenium in the body is associated with an increased risk of heart disease, leading some experts to believe that selenium may have a protective role in cardiovascular health. Although, the researchers concluded that since the studies analyzed were observational studies, the validity of the association between selenium intake and heart disease is in question. Additionally, selenium may help to increase blood flow, reduce inflammation, and reduce oxidative damage, all of which can contribute to heart health.
  • Thyroid function: There is a documented link between selenium deficiency and thyroid metabolism. It is thought that selenium helps to regulate the production of reactive oxygen within the thyroid gland, which may also help to protect against thyroid disease. More research is needed, but many medical professionals see significant value in the use of selenium supplements in addressing autoimmune thyroid disorders.
  • Fertility: Low selenium levels have been linked to low sperm motility and infertility in animals and human men. Thus, some researchers believe there may be a link between selenium intake and fertility, particularly for males. Very little research has been done on selenium’s effects, if any, on female infertility. In general, this is an area that needs significantly more research.

Overall, selenium is a vitally important mineral for various aspects of health. With that said, the relatively low RDA for the mineral means that many people will get enough of this nutrient from their diets alone.

Who Can Benefit from Selenium?

  • Those at Risk for Thyroid Problems – Selenium is essential for thyroid metabolism. Your thyroid is a gland located in your neck responsible for making hormones, and controlling the rate of things such as your heartbeat and how fast you burn calories. Conditions such as goiter (thyroid enlargement), hyperthyroidism, hypothyroidism and thyroiditis can cause overall health problems resulting in heart palpitations, dry skin, irregular bowel movements, changing menstrual cycles, muscle pain, high blood pressure and more. If you are a woman over the age of 35, your chances of thyroid conditions are at about 30%.
  • Those Living in Selenium-Poor Regions – Certain geographic regions have less selenium in their soils, increasing your risk of selenium deficiency. Soils in China, the UK, Australia, New Zealand, Scotland, Finland, Sweden, Austria, Germany, France, Greece, Western Russia, Turkey, some parts of Canada and the Pacific Northwest of the United States have lower selenium levels. If you live in these regions, you may benefit from a good selenium supplement for deficiency and supporting overall health.
  • Older Adults – Aging adults can benefit from selenium because they can help thyroid issues and regulate metabolism, support cardiovascular health and boost immunity. As you age, you are at a higher risk of developing thyroid conditions, weakened immunity and poor cardiovascular health.
  • Those with Asthma – Selenium has anti-inflammatory benefits that have been studied for asthma. Though studies are not conclusive yet.

Taking Selenium

Selenium supplements can be taken with food at any point in the day. Follow the specific directions on your selenium supplement for selenium supplement dosage instructions. It can interact with other medications, so talk to your doctor before taking selenium to ensure safety.

Are There Any Beneficial Selenium Stacks?

Selenium can be stacked with other supplements to enhance its overall health benefits. Some supplements can be stacked with selenium to unlock the synergistic benefits that they provide together. Here are a couple of the best selenium stacks:

  • Selenium, Beta-Carotene and Vitamin E –  Beta-carotene (a plant pigment) and vitamin E (an antioxidant) along with selenium make a top selenium stack for cardiovascular health.  This effective selenium stack can helps lower LDL cholesterol according to many studies.
  • Selenium and CoQ10 – CoQ10 is a powerful coenzyme and antioxidant that helps to support cardiovascular health, and is naturally found in the body.

Selenium Side Effects

In doses higher than this taken over long periods of time, selenium supplements may cause toxicity. Though most people do not experience side effects, some people may experience nausea, vomiting, muscle tenderness, facial flushing and more.

What to Look for in a Good Selenium Supplement

The most effective selenium supplements are generally formulated with selenomethionine for its enhanced antioxidant benefits and bioavailability. Some formulations are made with S. cerevisiae, or selenium enriched brewer’s yeast.

They also should be produced by companies with reliable reputations and contain few additional ingredients. Watch out for fillers, binders and unnecessary additives! Overall, look for a top selenium supplement that fits your budget and is effective.

Top 10 Selenium Products Compared

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1. Pure Encapsulations Selenium

pure-encapsulations-selenium

Pure Encapsulations Selenium is probably the #1 selenium supplement on the market! It is a hypoallergenic selenium pill that is formulated using selenomethionine that provides powerful antioxidant benefits. It is suitable to vegetarians, available at an affordable price, and uses a well-studied optimal selenium dosage of 200 mcg selenium per capsule.

Highlights:

  • 200 mcg selenium (selenomethionine)
  • Hypoallergenic
  • Affordable
  • Suitable to vegetarians

Who Makes It?

Pure Encapsulations is a renowned producer of hypoallergenic and effective supplements that provide you scientifically-backed health benefits. All of their supplements are manufactured in GMP certified facilities that exceed United States Pharmacopeia standards.

Bottom Line: It cannot get better than this! Pure Encapsulations Selenium is manufactured by a reliable supplement brand in a GMP certified facility and is formulated with the selenomethionine for enhanced antioxidant and absorption benefits. It is hypoallergenic, suitable to vegetarians, clean and even affordable – making it one of the best selenium supplements on the market.

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2. Nature’s Way Selenium 200 Mcg

natures-way-selenium

Nature’s Way Selenium is a powerful antioxidant top selenium supplement that can help to support overall health by boosting immunity, supporting the metabolism, enhancing cardiovascular health and lengthening your lifespan. It is made with selenomethionine and is free from gluten, sugar, salt, yeast, wheat, corn, soy, dairy, artificial colors, flavors and preservatives.

Highlights:

  • 200 mcg selenium (selenomethionine)
  • Affordable
  • Free from artificial colors, flavors and preservatives
  • Free from gluten, sugar, salt, yeast, wheat, corn, soy and dairy

Who Makes It?

Nature’s Way, founded in 1969, is one of the best natural supplement brands available today. They are the first major supplement brand to be authenticated with the TRU-ID certification program that shows that the supplement label is accurate.

Bottom Line: If you are on a budget, this is the best selenium supplement for you. It is an effective selenium pill with very few additional ingredients, and it is manufactured in a GMP certified facility. Nature’s Way Selenium offers strong selenium supplement antioxidant benefits at an affordable price to consumers.

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3. NOW Foods Selenium

NOW-Foods-Selenium

NOW Foods Selenium is a kosher selenium pill that is suitable to vegetarians and provides the consumer with the well-studied selenium supplement dosage of 200 mcg.

Highlights:

  • 200 mcg selenium (selenomethionine)
  • Kosher
  • Suitable to vegetarians
  • Uses selenomethionine

Who Makes It?

NOW Foods is a natural supplement brand that was founded in 1968 and has since produced affordable and effective natural supplements. They are known for their dedication to natural and sustainable sourcing, and their supplements are all manufactured in GMP certified facilities.

Bottom Line: This selenium supplement is good for a variety of health benefits that it can provide. It is formulated with selenomethionine in a GMP certified facility by a reputable brand. NOW Foods Selenium provides you with the well-studied selenium supplement dosage of 200 mcg per selenium pill as well.

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4. Thorne Research Selenomethionine

Thorne-Research-Selenomethionine

Thorne Research Selenomethionine is a vegan top selenium pill formulated with selenomethionine at a good selenium dosage. This affordable selenium pill is free from harmful additives and contains no gluten, eggs, dairy, high-fructose corn syrup or nut-based ingredients.

Highlights:

  • 200 mcg selenium (selenomethionine)
  • Affordable
  • Vegan
  • Free from gluten, dairy, eggs, high-fructose corn syrup and nut-based ingredients

Drawbacks:

  • Some say it is lower quality

Who Makes It?

Thorne Research is a reputable supplement brand that has been in the industry for over 30 years. Their supplements are innovative, high-quality and research-based nutritional supplements.

Bottom Line: Thorne Research Selenomethionine is a good selenium supplement for almost anyone – it is affordable, free from allergens and vegan. However, some people claim it is less effective. Overall, it is a top selenium product.

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5. BlueBonnet Selenium

bluebonnet-selenium

BlueBonnet Selenium is a powerful selenium supplement that provides pure yeast-free selenium in vegetarian capsules. It is formulated with selenomethionine in easy-to-swallow vegetarian capsules and is free from many allergens.

Highlights:

  • 200 mcg selenium (selenomethionine)
  • Affordable
  • Free of many allergens
  • Vegetarian
  • Uses selenomethionine

Drawbacks:

  • May be lower quality packaging

Who Makes It?

BlueBonnet is a natural supplement brand that has been in the industry for around 30 years. They formulate most of their supplements to be non-GMO, organic, allergen-free and KOF-K kosher certified.

Bottom Line: This is a good affordable and effective selenium supplement for almost anyone. It stacks up well against the competition. However, it may be slightly lower quality packaging.

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6. Life Extension Super Selenium Complex

Life Extension Super Selenium Complex

Life Extension Super Selenium Complex is a good selenium pill fortified with vitamin E. It has additional antioxidant benefits due to vitamin E (a well-known antioxidant vitamin) – a good selenium stack combination!

Highlights:

  • 200 mcg selenium (Se-methyl senenocysteine, SelenoPure, L-selenomethionine, sodium selenite)
  • 30 IU vitamin E
  • Affordable
  • Powerful antioxidant
  • Vegetarian
  • Fortified with vitamin E

Drawbacks:

  • Includes more fillers
  • Uses different selenium forms

Who Makes It?

Life Extension is a nutritional supplement brand that specializes in products that help lengthen your life. Their quality control exceeds FDA standards, and they source the best raw ingredients possible.

Bottom Line: This effective selenium supplement is a powerful source of antioxidants that is affordable and vegetarian. However, it does include more fillers, and it uses a blend of different selenium formations.

7. NutraBio Selenium

nutrabio-selenium

NutraBio Selenium is a vegetarian selenium pill that is tested for potency and purity and is manufactured in a GMP certified facility. This pharmaceutical-grade selenium supplement is good for a variety of selenium benefits.

Highlights:

  • 200 mcg selenium (Albion selenium amino acid complex)
  • Affordable
  • Vegetarian
  • Made in the USA

Drawbacks:

  • May be lower quality
  • Not formulated with selenomethionine

Who Makes It?

NutraBio is nutritional supplement company that was founded in 1996 and specializes in weight management and sports nutrition. Their products are manufactured in the USA in GMP certified facilities.

Bottom Line: This selenium supplement can be good for almost anyone because it is vegetarian and free from many allergens. However, it is not formulated with selenomethionine, and it may be lower quality.

8. Vital Nutrients Selenium

vital-nutrients-selenium

Vital Nutrients Selenium is a good selenium pill and potent antioxidant that is suitable to vegetarians. It contains double the usual amount of selenium, making this a powerful selenium supplement intended for providing powerful results.

Highlights:

  • 400 mcg selenium (sodium selenite/selenomethionine)
  • Strong selenium dosage
  • Vegetarian
  • No coatings, binders or gluten

Drawbacks:

  • Dosage is high
  • Expensive

Who Makes It?

Vital Nutrients is a high quality nutritional supplement manufacturer that is dedicated to promoting health. Their supplements are available to consumers worldwide.

Bottom Line: This is a very strong selenium supplement that can be most beneficial to those with a higher risk of selenium deficiency. However, the high dosage is not best for everyone, and it is more expensive.

9. Innate Response Selenium

innate-response-selenium

Innate Response Selenium is a clinical whole food nutrition selenium tablet that is formulated with an organic botanical blend, whole food blend, immune blend and bioactive enzymes and proteins. It is suitable to vegetarians, free from gluten and dairy.

Highlights:

  • 50 mcg selenium (S. cerevisiae)
  • 125 mg organic botanical blend
  • 60 mg organic whole food blend
  • 183 mg immune blend
  • 67 mg bioactive enzymes and proteins
  • Whole food formula
  • Free from gluten and dairy
  • Suitable to vegetarians

Drawbacks:

  • Uses S. cerevisiae
  • Expensive
  • More fillers

Who Makes It?

Innate Response is a natural whole foods supplement brand that focuses on supporting health holistically. It was founded by holistic health practitioner Tieraona Low Dog, M.D.

Bottom Line: This is a good selenium supplement, especially for those who want a natural and holistic selenium supplement. However, it is more expensive, has more fillers and it is not formulated with selenomethionine.

10. MegaFood Selenium

megafood-selenium

MegaFood Selenium is a whole food selenium tablet that is organic and vegetarian. With the additional benefits of a variety of whole food antioxidants, this selenium supplement has boosted antioxidant benefits.

Highlights:

  • 50 mcg selenium (S. cerevisiae)
  • 200 mg nourishing whole food blend
  • 133 mg immune health blend
  • Fortified with additional nutrients
  • Vegetarian
  • Gluten-free and vegan

Drawbacks:

  • Uses S. cerevisiae
  • Expensive
  • Low selenium supplement dosage

Who Makes It?

MegaFood is a vitamin and dietary supplement producer that produces supplements from farm to table. They focus on raw, whole food supplement ingredients.

Bottom Line: This is a great selenium supplement for those looking for a lower selenium supplement dosage. However, it does not use selenomethionine, and it is more expensive. The lower dosage may also be less effective.