Food Taste....,..........

Sweetness is almost always caused by a type of simple sugar, such as glucose or fructose, or disaccharides, such as sucrose, a molecule combining glucose and fructose. Sourness is caused by acids, such as vinegar. Sour foods include citrus, especially lemons and limes. Sour is evolutionarily significant as it can signal a food that may have gone rancid due to bacteria.Saltiness is the taste of alkali metal ions such as sodium and potassium.

It is found in almost every food in low to moderate proportions and enhances flavor. Bitter taste is a sensation considered unpleasant, caused by foods such as unsweetened dark chocolate, caffeine, lemon rind, and some types of fruit. Umami, commonly described as savory, is a marker of proteins and characteristic of broths and cooked meats.

Foods that have a strong umami flavor include cheese, meat and mushrooms.

Catfish have millions of taste buds covering their entire bodies. While most animals' taste buds are located in their mouths, some insects' taste receptors are located on their legs, and some fish have taste buds along their entire bodies.Dogs, cats, and birds have relatively few taste buds (a chicken has about 30), and an adult human has between 2000 and 4000, while a catfish can have more than a million.

Herbivores generally have more than carnivores as they need to tell which plants may be poisonous.Not all mammals share the same tastes: some rodents can taste starch, cats cannot taste sweetness, and several carnivores (including hyenas, dolphins, and sea lions) have lost the ability to sense up to four of the five taste modalities found in humans.