Selenium
Function
Plays critical roles in reproduction, thyroid hormone metabolism, DNA synthesis, and protects from oxidative damage and infection.

Food sources
Selenium is mostly found in
- Seafood
- Breads
- Organ meat
- Whole Grains
- Muscle meat
- Dairy products
- Cereals
- Poultry
- Meat, Fish & Eggs
Deficiency
Selenium deficiency results in following issues
- Keshan disease (a type of heart disease)
- Male infertility
- Kashin-Beck disease (a type of arthritis that produces pain, swelling, and loss of motion in your joints)
Source: U.S. Department of Health & Human Services
https://ods.od.nih.gov/factsheets/list-all/#Selenium