Selenium

Trace mineral that helps make DNA and protect against cell damage

  • Stored in muscle tissue and thyroid
  • Deficiency rare since soil rich in selenium
  • Low levels linked to increased risk of some diseases

Health Benefits:

  • reduces inflammation
  • keeps immune system healthy
  • plays role in reproduction/fertility
  • protect against cell damage, infections

Low intake of Selenium

Symptoms of low Selenium intake

  • Brain fog, Difficulty concentrating
  • Fatigue
  • Hair loss
  • Infertility in men/women
  • Muscle weakness
  • Weakened immune system

Causes of low Selenium intake

  • Can cause heart failure, heart disease
  • Can cause impaired immune system, thyroid
  • Can cause infertility issues for women
  • Can cause type of arthritis, pain, swelling

Excess intake of Selenium

Symptoms of excess intake of Selenium

  • Fatigue, Irritability
  • Garlicky odor (breath)
  • Hair loss, Nail loss
  • Nail discoloration, brittle
  • Nausea, Vomiting, Diarrhea
  • Skin rashes

At risk for excess Selenium

  • Copper ingestion
  • Diet (excessive ingestion)
  • Inhaled-metal, painting industry
  • Supplements

Selenium Content in Foods

Foods High in Selenium

FoodServing SizeSelenium
Brazil nuts1 oz544 mcg
Pacific oysters, cooked3 oz131 mcg
Tilapia, cooked6 oz92.5 mcg
Pork tenderloin, broiled6 oz81 mcg
Atlantic salmon, wild, cooked6 oz79.6 mcg
Roasted ham, lean, diced1 cup67.4 mcg
White tuna, canned, water packed3 oz55.8 mcg
Chicken breast, cooked6 oz54.2 mcg
Turkey breast, roasted6 oz51.3 mcg
Ribeye steak1 fillet46.7 mcg

Foods Low in Selenium

FoodServing SizeSelenium
Cucumber1 cup0.3 mcg
Spinach, raw1 cup0.3 mcg
Merlot, Red wine, Table wine5 oz0.3 mcg
Kiwi fruit, sliced1 cup0.4 mcg
Almond butter1 Tbsp0.4 mcg
Blackberries1 cup0.6 mcg
Cauliflower, chopped1 cup0.6 mcg
Strawberries, sliced1 cup0.7 mcg
Sweet chocolate1 oz0.8 mcg
Peaches, canned1 cup1 mcg

References

Harvard T.H. Chan School of Public Health, H. T. H. C. S. (2021). Antioxidants. The Nutrition Source. https://www.hsph.harvard.edu/nutritionsource/antioxidants/
Selenium. (2021). National Institutes of Health (NIH) Office of Dietary Supplements. https://ods.od.nih.gov/factsheets/Selenium-HealthProfessional/
Ross, A., Taylor, C., & Yaktine, A. (2011). Dietary Reference Intakes (DRIs): Recommended Dietary Allowances and Adequate Intakes, Elements. National Academies Press (US). https://www.ncbi.nlm.nih.gov/books/NBK56068/table/summarytables.t3/?report=objectonly
Selenium, Se (µg). (n.d.). U.S. DEPARTMENT OF AGRICULTURE, FoodData Central. https://fdc.nal.usda.gov/fdc-app.html#/?component=1103
Nutrients: Selenium, Se (µg). (n.d.). USDA National Nutrient Database for Standard Reference. https://www.nal.usda.gov/sites/default/files/page-files/selenium.pdf
Nutrients: Selenium, Se (µg) Content. (2015). USDA National Nutrient Database for Standard Reference. https://ods.od.nih.gov/pubs/usdandb/Selenium-Content.pdf
Nutrients: Selenium, Se (µg) Food. (2015). USDA National Nutrient Database for Standard Reference. https://ods.od.nih.gov/pubs/usdandb/Selenium-Food.pdf

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