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Selenium

Mineral

Essential trace mineral with narrow safety margin; a single Brazil nut a day had pro-inflammatory effects; may shorten life at certain supplement doses

Food Sources

Foods that contain Selenium.

  • Brazil Nuts

    Brazil nuts are so high in selenium that eating four every day may bump you up against the tolerable daily limit.

    Source: How Not to Die

  • Kale

    high in vitamin C and selenium, which can help support a healthy immune system

    Source: The Young Forever Cookbook

  • Shrimp

    Shrimp are a healthy, lean source of protein and a source of selenium and zinc

    Source: The Young Forever Cookbook

  • Sardines

    Source: Young Forever

Health Benefits

Health conditions that Selenium may influence, based on research.

Protects Against

  • Alzheimer's disease

    Supplementation with selenium failed to prevent Alzheimer's

    Source: How Not to Age

  • Cognitive decline

    Potential health benefits of Se status in older populations are reduced risk of immune dysfunction, cognitive decline, cardiovascular disease, certain tumours, and overall mortality.

    Source: Nutrition, Food and Diet in Ageing and Longevity

  • Cardiovascular Disease

    Potential health benefits of Se status in older populations include reduced risk of cardiovascular disease and overall mortality.

    Source: Nutrition, Food and Diet in Ageing and Longevity

  • Cancer

    Selenium, antioxidant, reduces risk of cancer; found in Brazil nuts, mushroom, spinach, brown rice, seafoods, meat, dairy

    Source: Nutrition, Food and Diet in Ageing and Longevity

  • Aging

    The window for therapeutic effects of selenium is narrow and toxic effects are soon observed. While deficiency can be an issue, supplementation is not warranted in populations with adequate levels.

    Source: Nutrition, Food and Diet in Ageing and Longevity

Addresses

  • Androgenetic Alopecia

    MacFarquhar 2010: acute selenium toxicity from dietary supplements; hair loss may result from selenium excess

    Source: How Not to Age

Biological Mechanisms

How Selenium works at a cellular level.

  • PromotesBoosts immune function

    Iron, zinc, copper, and selenium synergistically support the protective activities of the immune cells; all are essential for antibody production

  • PromotesAntioxidant Defense

    Selenocysteine is involved in regulation of thyroid metabolism, removal of reactive oxygen species and protection of cells from oxidative damage; Selenoproteins have antioxidant effects. Se alleviates ROS-mediated processes, such as inflammation or DNA damage.

  • PromotesReduces DNA Damage

    Antimutagenic substances include organic forms of selenium (Brazil nuts, cashews, fish, turkey, chicken, brown rice, legumes, mushrooms, oatmeal, spinach)

  • PromotesNrf2 Activation

    Essential for detoxification pathways

Recipes with Selenium

Recipes featuring foods that contain Selenium.

Sources

  • How Not to Age
  • How Not to Die
  • The Young Forever Cookbook
  • Young Forever
  • Nutrition, Food and Diet in Ageing and Longevity