What is the greatest taste enhancer on earth?
Sodium Chloride; NaCl; aka: SALT.
“This is partially simply due to the fact that “saltiness” is one of the five primary basic tastes the human tongue can detect. Those five tastes being: salt, bitter, sweet, sour, and umami (if you’re not familiar with this one, it is from glutamic acid, which is found in many foods, particularly some meats, and is the basis of the flavour enhancer monosodium glutamate, also known as MSG).
The extra salt has other effects as well though, outside of simply making things saltier. Particularly, adding salt to foods helps certain molecules in those foods more easily release into the air, thus helping the aroma of the food, which is important in our perception of taste.
Salt also has been shown to help suppress the bitter taste. So adding a bit of salt won’t just increase your salty taste perception, but will also decrease your bitter taste perception in any given food (which is why it is often sprinkled on grapefruit, for instance, before eating).”