Zinc
Why you need it: Zinc has been shown to play a role in immune function (you’ve probably seen it in cold remedies), and it’s also important for your senses of taste and smell.
Where to get it: Oysters contain more zinc per serving than any other food (74 mg per serving, or nearly 500% of DV), but people more often consume zinc in red meat and poultry. Three ounces of beef chuck roast, for example, contains 7 mg. Alaska King crab is a good source of the mineral, as well.