7. Selenium
Selenium is yet another trace mineral that helps to prevent age-related issues. Research shows that this mineral is linked to longer telomeres, which are caps on chromosome ends that regulate aging of cells.
You must eat Brazil nuts, seafood, broccoli, cabbage, spinach, yellowfin tuna fish, and turkey for your supply of selenium. Be careful with Brazil nuts, as they contain highest amount of selenium. Eating too much can cause selenium toxicity.