Why does salt make food taste better when cooking?

Salt enhances flavor primarily by suppressing bitterness and amplifying other taste compounds already present in food. It works by blocking bitter taste receptors on your tongue, which allows sweeter, savory, and more complex flavors to come through more clearly. This is why a pinch of salt in coffee or chocolate makes them taste richer rather than salty. Salt also draws moisture out of food through osmosis, which concentrates flavors and improves texture. In meat and vegetables, this process helps break down proteins and cell walls, making food more tender and allowing seasonings to penetrate deeper. Additionally, salt enhances the volatility of aromatic compounds, meaning food smells more flavorful, which directly intensifies how we perceive taste since smell and taste are closely linked.