If you’ve been wondering if a selenium supplement can help with your health and well-being, you’re not alone. The mineral selenium has a reputation for being essential for good health, but there are still some unanswered questions.

Is it really as beneficial as it sounds? Does it have any side effects? Does it cause hair loss or weight gain? Can you take too much? These are all good questions that deserve an answer. Let’s find out what the science says!

What is Selenium?

Selenium is an essential trace element found in soil and water and is necessary for human health. It appears naturally in many foods, including Brazil nuts, eggs, fish, garlic, grains, meat, and poultry.

The body needs selenium to make several important proteins that play a role in metabolism, thyroid function, reproduction, and immunity. A deficiency of this mineral could adversely affect all these functions.

The daily recommended dose of selenium for adults is 55 micrograms (mcg), according to the National Institutes of Health (NIH).

However, be aware that taking too much selenium can be harmful because this mineral is toxic at high levels; don’t exceed 400 mcg per day without consulting your doctor or nutritionist first.

Pregnant women should also consult their doctor before taking any supplement containing selenium because excessive intake may cause harm to the developing fetus.

Can You Take Too Much Selenium?

Yes. Excessive doses of selenium can lead to a condition known as selenosis which causes symptoms such as fatigue, irritability, hair loss or discoloration of the hair or nails, gastrointestinal problems (nausea and vomiting), skin lesions, and even neurological disorders such as confusion or difficulty walking due to lack of coordination between muscles and nerves.

In severe cases, it can also lead to liver damage or kidney failure if left untreated for too long. It's important to note that none of these symptoms are caused by normal doses taken within the recommended guidelines; they only occur if you take more than 400 mcg per day on a regular basis over an extended period of time.


Taking too much selenium can have serious side effects so make sure you talk to your doctor before starting any supplement regimen containing this mineral–especially if you are pregnant or nursing–and always follow the instructions on the package carefully when taking any type of supplement containing this nutrient.

By following these steps you will ensure that you reap all the benefits that selenium has to offer while avoiding any potential risks associated with excess intake!

And, as always, keep on reading...

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