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Helpful Function in Well being, Sources And Facet Results- HealthifyMe

Selenium is a hint mineral that you simply naturally discover within the soil. Our physique wants it in minimal quantities. Selenium is crucial for copy, correct functioning of the thyroid gland, safety from infections, DNA synthesis, and defending the cells from oxidative stress brought on by free radicals. Brazil nuts comprise the best focus of selenium. Different meals like nuts, seeds, meat and grains additionally comprise cheap quantities of selenium. Toddler formulation are fortified with selenium to make sure infants obtain them in sufficient quantities.

Selenium focus in meals is determined by the soil it grows in. 1817 is the 12 months of its discovery, and it was initially thought-about a tellurium compound. Nonetheless, it will definitely bought medical consideration resulting from its toxicity to industrial staff. Selenium has additionally been toxic to animals that devour high-selenium vegetation. So an extra of this may be probably dangerous to well being. 

Regardless of selenium’s useful results on human well being, consuming it in required quantities is crucial. Nonetheless, taking extra selenium might end in antagonistic well being outcomes.

Science-Primarily based Well being Advantages of Selenium

1. Reduces Danger of Prostate Most cancers

Many elements reminiscent of previous age, weight problems, genetics can play a task in growing prostate most cancers. As well as, individuals with prostate most cancers might endure from lack of bladder management, erectile dysfunction and so forth. 

A analysis research discovered that sufficient selenium ranges within the physique cut back the chance of growing prostate most cancers amongst males. Selenium prevents prostate most cancers by slowing the event and unfold of most cancers cells. Selenium ranges within the blood and tissues are all inversely associated to the chance of prostate most cancers.

Analysis has additionally proven that selenium reduces the chance of a number of different cancers reminiscent of breast, colon and lung cancers.

2. Selenium Comprises Antioxidative Properties

The manufacturing of free radicals in our physique outcomes from publicity to toxins within the atmosphere. As well as, metabolic capabilities within the physique additionally produce them. When the manufacturing of those free radicals is in extra, they hurt the tissues and organs. Antioxidants play a vital function in decreasing the injury brought on by free radicals within the physique. For instance, selenium is a well known antioxidant nutrient.

A research demonstrates that selenium consumption would possibly cut back the markers of oxidative stress. As well as, it will increase the antioxidative exercise, thereby decreasing the free radical injury.

3. Reduces Danger of Coronary heart Illness

We all know that coronary heart illness happens resulting from poor dietary habits, genetics, lack of bodily exercise, smoking, excessive levels of cholesterol and lots of different causes. If not handled, it leads to a number of critical well being outcomes reminiscent of stroke, cardiac failure, and many others.

Research have proven that selenium consumption is related to a lowered threat of coronary heart illness. Selenium is a potent antioxidant. It acts on the center by defending it in opposition to the injury precipitated resulting from free radicals. Selenium additionally works by decreasing irritation by stopping oxidative injury to the lipids and clogging of arteries. Due to this fact, selenium reduces the chance of coronary heart illness and stroke.

4. Selenium Delays Onset of Alzheimer’s Illness

Alzheimer’s illness happens when a decline in mind operate leads to reminiscence loss. The most typical causes of Alzheimer’s illness are way of life, atmosphere and genetics. Because the situation worsens, it could actually trigger difficulties in talking, studying and remembering.

Completely different states of selenium have neuroprotective results. A research demonstrates that selenium’s antioxidant properties assist defend the mind from injury resulting from free radicals. Thereby, it delays the event of Alzheimer’s illness.

The Mediterranean food plan popularly utilized in many illnesses contains meals wealthy in selenium reminiscent of nuts, seeds and seafood. These meals are additionally useful in decreasing the chance of Alzheimer’s illness.

5. Helps Deal with Thyroid Issues

Thyroid hormone fluctuation results in hypothyroidism, Grave’s illness, Hashimoto’s thyroiditis, and many others. As well as, your development and growth may be affected in case your thyroid gland doesn’t operate correctly. For instance, it might end in hair loss, weight reduction, irregular menstrual cycle, gradual development, tiredness and lots of extra.

The thyroid gland accommodates the best quantities of selenium in its tissues. As we already know, metabolic capabilities such because the secretion of thyroid hormones can produce free radicals. Selenium protects the thyroid gland from oxidative stress. A research has discovered that selenium might enhance thyroid issues.

6. Reduces Irritation

Selenium improves the immune response. A research discovered that the selenoprotein fashioned from dietary selenium reduces the inflammatory response. These are related to a number of illnesses reminiscent of allergy, bronchial asthma, inflammatory bowel illness, and many others. It acts by reducing the over-activation of the immune system. It additionally strengthens the physique’s immunity in opposition to infectious pathogens that trigger influenza and tuberculosis.

7. Aids in Weight Loss

Unhealthy weight achieve can result in a number of well being points reminiscent of weight problems and coronary heart illness. Selenium performs a significant function in metabolism because it regulates the capabilities and secretion of thyroid hormones. A research reveals that sufficient selenium consumption might assist keep a wholesome metabolic price. Due to this fact, applicable quantities of selenium consumption result in weight reduction. Nonetheless, when taken above the usual necessities, selenium can have fairly the alternative impact.

8. Selenium Improves Pores and skin Well being

The predominant reason for fast pores and skin ageing is publicity to daylight, smoke and different environmental pollution. It may end up in the event of zits, wrinkles and uninteresting pores and skin.

Research have discovered selenium to be useful in stopping and treating pores and skin issues reminiscent of psoriasis. It has antioxidant properties. Therefore, selenium protects the pores and skin from oxidative injury brought on by solar publicity.

9. Prevents Untimely Beginning

Vitamins reminiscent of zinc, selenium, iron, folate are important for the wholesome development and growth of the child throughout being pregnant. Research have discovered that selenium is essential for a child’s wholesome delivery. Consumption of applicable quantities of selenium prevents antagonistic being pregnant outcomes reminiscent of untimely delivery and foetal development restriction.

10. Could Enhance Fertility

Some analysis research recommend that selenium consumption enhance fertility in ladies. As well as, selenium helps improve reproductive operate by retaining follicular fluid wholesome. It’s also useful in bettering sperm rely and motility in males.

Selenium Deficiency

Selenium is crucial for the right functioning of the thyroid gland and lots of different methods in our physique. Low ranges of selenium might disrupt the conventional processes and should result in:

  • Fatigue
  • Hair loss
  • Mind fog
  • Weakened immunity
  • Weak muscle tissue
  • Infertility 

The deficiency of selenium can result in particular illness situations. 

Keshan Illness

Keshan illness is a harmful dysfunction that, if left untreated, can result in heart problems, stroke, or loss of life. You possibly can deal with Keshan illness or management it, however it’s not curable. It generally happens in ladies and kids. Research recommend that it could actually happen resulting from selenium deficiency. Typically it’s mixed with microbial an infection.


  • Nausea
  • Vomiting
  • Lack of urge for food
  • Dizziness
  • Chills
  • Irregular heartbeat
  • Fatigue
  • Irritation
  • Hair loss

In worst circumstances, it might result in extreme issues, reminiscent of:

  • Cough with blood
  • Extreme shortness of breath
  • Congestive coronary heart failure
  • Fainting
  • Palpitation
  • Stroke

Kashin Illness

It’s a joint and bone dysfunction related to low selenium ranges. Nonetheless, the reason for this illness can be resulting from different elements. It generally happens in kids. Research present that individuals affected with this illness usually have decreased development and bone abnormalities.


  • Ache and stiffness in joints
  • Incapacity to maneuver joints
  • Enlarged joints

Folks of all age teams ought to take the really helpful doses of selenium. It’ll assist them with correct development and growth. Nonetheless, it’s important to make sure that you don’t devour in extra. Additionally, it’s preferable to take selenium together with a meal moderately than on an empty abdomen. The really helpful consumption must be:

  • 0-6 Months: 15mcg
  • 7 months-3 years: 20mcg
  • 4-8 years: 30mcg
  • 9-13 years: 40mcg
  • 14 years and above: 55mcg
  • Pregnant ladies: 60mcg
  • Breastfeeding ladies: 70mcg

Meals Sources of Selenium

Selenium: Beneficial Role in Health, Sources And Possible Side Effects- HealthifyMe

1. Brazil Nuts

They’re wealthy in vitamins and antioxidants. Brazil nuts have the best selenium content material and comprise cheap quantities of zinc. As well as, a research reveals that consuming a single serving of Brazil nuts can acutely enhance the serum lipid profile of wholesome volunteers. That’s as a result of they’re nutritious and assist enhance coronary heart well being. In addition they assist the wholesome functioning of the opposite organs, such because the mind and kidneys.

Dietary Values

As per USDA, 100g of brazil nuts comprise:

  • Power: 659kcals
  • Carbohydrates: 11.7g
  • Protein:14.3g
  • Fats: 67.1g
  • Fibre:7.5g
  • Calcium: 160mg
  • Iron: 2.43mg
  • Zinc: 4.06mg
  • Selenium: 1920µg

2. Tuna

Tuna is a wonderful supply of high-quality protein. It’s low in energy and fats and helps construct muscle whereas decreasing physique fats. As well as, they’re extremely nutritious as they comprise cheap quantities of calcium, B advanced nutritional vitamins, and many others.

Dietary Values

As per USDA, 100g of tuna accommodates:

  • Power: 85kcals
  • Carbohydrates: 0.08g
  • Protein:19g
  • Fats: 0.6g
  • Calcium: 18mg
  • Iron: 1.67mg
  • Zinc: 0.66mg
  • Selenium: 67.8µg

3. Turkey

Turkey is one other excessive protein but low carb meals. It is filled with B advanced nutritional vitamins, zinc and selenium. It may possibly make a scrumptious and wholesome aspect to most of your lunch dishes.

Dietary Values

As per USDA, 100g of turkey accommodates:

  • Power: 213kcals
  • Carbohydrates: 0g
  • Protein:27.1g
  • Fats: 10.4g
  • Calcium: 31mg
  • Iron: 1.56mg
  • Zinc: 3.77mg
  • Selenium: 28.4µg

4. Cottage Cheese

Cottage cheese is a sort of curd cheese. It’s scrumptious and wholesome and has low fats, excessive protein, selenium, calcium and lots of different vitamins. You possibly can add them to your salads, eggs, toast, and a lot extra.

Dietary Values

As per USDA, 100g of cottage cheese accommodates:

  • Power: 82kcals
  • Carbohydrates: 4.31g
  • Protein: 11g
  • Fats: 2.3g
  • Calcium: 103mg
  • Iron: 0.13mg
  • Zinc: 0.61mg
  • Selenium: 14.6µg

5. Sunflower Seeds

Sunflower seeds assist regulate the menstrual cycle, cut back coronary heart illnesses, and enhance immunity. Nonetheless, they’re excessive in energy, and it’s best to devour them carefully.

Dietary Values

As per USDA, 100g of sunflower seeds comprise: 

  • Power: 657kcal
  • Carbohydrates: 17.1g
  • Protein: 21g
  • Fats: 56.1g
  • Calcium: 78mg
  • Iron: 5.2mg
  • Zinc: 6mg
  • Selenium: 80.4µg

Potential Facet Results & Precautions of Selenium

Taking selenium dietary supplements based on a doctor’s prescription is advisable. Nonetheless, it’s important to be cautious. Consumption shouldn’t cross the protected higher limits. These higher limits are:

  • 0-6 months: 45mcg
  • 7-12 months: 46mcg
  • 1-3 years: 90mcg
  • 4-8 years: 150mcg
  • 9-13 years: 280mcg
  • 14 years and above: 400mcg

Thyroid Issues

Taking selenium would possibly make hypothyroidism worse. It happens primarily in individuals who’re poor in iodine. On this case, it’s best to take iodine and selenium collectively. Seek the advice of your doctor for applicable dosage and therapy.

Sperm Motility

Although research recommend selenium improves fertility, it’s important to notice that taking selenium in extra can have the alternative impact. It’s as a result of selenium limits the capability of sperm to maneuver, thereby reducing fertility. Due to this fact, devour selenium inside the tolerable higher limits solely.

Selenium can Trigger Kidney Illness

Extreme consumption of selenium may be probably dangerous to the kidney. Due to this fact, it’s important to devour selenium inside protected limits in sufferers with kidney failure or individuals present process dialysis. Research have discovered that extreme selenium consumption might end in acute renal failure.

Being pregnant

Case research have discovered that prime ranges of selenium consumption might result in congenital disabilities in infants. It could additionally result in issues within the being pregnant. Therefore, it’s important to devour selenium inside tolerable limits.

Different Medicines

Selenium dietary supplements intervene with just a few medicines when taken collectively. One such medicine is warfarin. Research present that selenium might alter the exercise of warfarin. Due to this fact, it will assist for those who mentioned together with your doctor earlier than consumption.


Research present that selenosis happens resulting from a excessive selenium consumption. For instance, it may be resulting from elevated consumption of selenium-rich meals reminiscent of brazil nuts. It could additionally happen resulting from meals grown in soil with excessive selenium content material or extreme selenium supplementation.


  • Nausea
  • Vomiting
  • Discolouration of nail
  • Brittle nails
  • Hair loss
  • Fatigue
  • Irritability
  • Foul odour or ‘garlic breath.’

The Backside Line

Selenium is essential for day after day capabilities carried out by our physique. Nonetheless, extra consumption of selenium can result in dangerous results. Each selenium deficiency and toxicity can contribute to antagonistic well being outcomes. Due to this fact, it’s important to be cautious when choosing a selenium complement. One ought to at all times seek the advice of a doctor and focus on the advantages and negative effects of taking a complement. It’s also important to avoid any medicine interacting with selenium dietary supplements.

Continuously Requested Questions (FAQs)

1. What does selenium do for the physique?

A. Selenium performs a major function within the correct functioning of the thyroid gland, reproductive system and protects the physique from infections. As well as, it helps enhance pores and skin and coronary heart well being and helps enhance pores and skin.

2. Is it protected to take selenium each day?

A. Sure, you possibly can take selenium safely each day so long as it stays inside the tolerable higher restrict. Above the protected restrict could also be dangerous to the physique. It could trigger antagonistic results reminiscent of nausea, vomiting, irritability, and many others.

3. What are the signs of selenium deficiency?

A. Selenium deficiency may cause signs like weak immunity, hair loss, muscle weak spot, nausea, vomiting, fatigue, infertility and mind fog.

4. How a lot selenium must you take every day?

A. You possibly can devour selenium-rich meals like brazil nuts, rooster, turkey and tuna to get an sufficient quantity of selenium. The really helpful dose varies as per age and medical situations. It’s as follows:

  • 0-6 Months: 15mcg
  • 7 months-3 years: 20mcg
  • 4-8 years: 30mcg
  • 9-13 years: 40mcg
  • 14 years and above: 55mcg
  • Pregnant ladies: 60mcg
  • Breastfeeding ladies: 70mcg

5. What’s the aspect impact of selenium?

A. Selenium imparts varied well being advantages to you when taken carefully. Nonetheless, an elevated selenium consumption may end up in antagonistic well being outcomes reminiscent of foul odour or “garlic breath”, discolouration of nails, brittle nails, nausea, vomiting, fatigue and hair loss.

6. Does selenium trigger weight achieve?

A. No, consuming selenium in sufficient quantities helps in shedding weight. It is because of selenium’s function in regulating thyroid operate and metabolism. Nonetheless, some research have proven that extreme consumption of selenium might trigger a rise in weight. 

7. What meals are excessive in selenium and zinc?

A. Meals reminiscent of brazil nuts, rooster, turkey, tuna and cottage cheese are selenium-rich meals. As well as, meals like meat, shellfish, legumes, seeds, nuts, dairy and a few greens are wonderful sources of zinc.

8. Is selenium good for the prostate?

A. Sure, selenium delays and reduces the chance of prostate most cancers. It really works by stopping the expansion and unfold of cancerous cells to different organs and tissues. Selenium ranges within the blood and tissues are all inversely associated to the chance of prostate most cancers.

9. What time is finest to take selenium?

A.You possibly can take it at any time of the day. Nonetheless, it’s best to devour selenium dietary supplements with different meals and never on an empty abdomen.

10. Is selenium appropriate for sperm manufacturing?

A. Sure, research have discovered that taking an sufficient quantity of selenium can enhance sperm motility and rely in males. As well as, selenium helps improve reproductive operate by retaining follicular fluid wholesome.

11. Can selenium increase PSA?

A. No, Research have discovered that consumption of applicable quantities of selenium can cut back PSA, thus decreasing the chance of prostate most cancers.

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