Salt makes everything taste better
In a number of ways. Salt is one of the five basic tastes that we’re hard-wired to detect (along with bitter, sweet, sour, and umami or savory). It enhances foods by essentially turning up the volume of their salty flavors. Salt can also dial down the taste of bitter foods by suppressing our perception of bitterness, and balance other tastes like sweet and sour (salt added to desserts or vinaigrettes, for example). Salt also unravels (or denatures) the tight spiral structure of proteins, making their flavors tastier and more aromatic.