Because people decided to do it like that.
Taste it.
Food coloring has no taste and should not affect the taste of the food. However, the color of a food can impact psychology and make people think the food tastes different, even when, objectively, it tastes the same.
Food colouring doesn't have an effect on the taste. It enhances the appearance of the food. Some people may think that food tastes better if it looks attractive.
It tastes good to people who like it. This is true for any food.
People with a taste for life...!
Ovbiously that is a silly question to ask because if you cant smell anything then you cant taste your food it is a well known fact!
Yes.
When people taste food they like, the taste buds will send signals to the brain. The pleasure receptors respond with the pleasure part of the brain.
Adding onions to a food to make the food taste good is a matter of personal preference. Onions help with the digestion of the person eating the food, though.
No. Taste cannot be seen by sighted people either. cw: There is a condition where sensory input is "confused", such as you can see a taste. It is not, however, a condition that blind people are especially known to have.
If there is most people do not know what that is.