selenium

Selenium is an essential trace element that plays a vital role in human health, including maintaining healthy hair. It contributes to the body's antioxidant defense by supporting the activity of selenoproteins, which protect cells from oxidative stress and damage caused by free radicals. These antioxidant properties of selenium are particularly important for the scalp and the Hair follicles, as they can help prevent hair loss and promote hair health.

Selenium and hair health

Protection against damage : Selenium helps protect hair and scalp from environmental damage by combating oxidative damage.
Hair growth : Although direct evidence is limited, some studies suggest that selenium may help regulate hormones that affect hair growth.
Dandruff and scalp health : Selenium is used in many anti-dandruff shampoos because it helps fight the yeast fungi that are often responsible for dandruff.

Selenium deficiency and hair health

A selenium deficiency can lead to various health problems, including impaired hair health. Symptoms of a selenium deficiency can include hair loss, weakened immune function, and reduced thyroid function, all of which can indirectly affect hair health and growth.

Sources of selenium

Selenium can be obtained from a variety of foods, including:

Seafood (such as shrimp, tuna and salmon)
Meat (especially organs like liver)
eggs
Nuts and seeds (Brazil nuts are particularly rich in selenium)
whole grain products

Recommended daily dose

The recommended daily allowance (RDA) for selenium is 55 micrograms (µg) for adult men and women. However, selenium intake should not exceed 400 µg per day, as excessive intake can be harmful and may lead to symptoms such as nausea, diarrhea, skin rashes, and in severe cases, hair loss and nerve damage.

Precautions

While selenium offers health benefits in moderate amounts, excessive intake, particularly through supplements, can be harmful. It is important to maintain a balanced diet and, if necessary, consult a healthcare provider about appropriate selenium dosage to avoid adverse effects.

If you experience signs of selenium deficiency or excess, it is advisable to consult a doctor who can recommend an appropriate diagnosis and treatment to ensure optimal selenium intake and support hair health.