Question

What is the function of sugar in the human body?

Answer 1

Hint: Sugars are just another name for carbohydrates, carbohydrates are bio-molecules which contain carbon, hydrogen and oxygen in it. Many kinds of sugar are there, and most of them are used for edible purposes.

Complete answer:
Sugars are nothing but carbohydrate molecules, they are sweet in taste and are essential for the human body. Sugars such as tabular sugar or granulated sugar are composed of sucrose, which is a disaccharide compound, composed of glucose and fructose.
Sugar or carbohydrates are fuels that provide energy to the human body. Mostly the sugar we eat, that is table sugar, contains sucrose in it. Sucrose has glucose and fructose in it.
The body breaks down those carbohydrates into glucose and fructose. Some amount of glucose is necessary for red blood cells (RBC), brain and central nervous system to function smoothly and properly.
The amount of glucose that goes in our body decides the variation of insulin levels in our body. Insulin is also important for our body, but only in the right amount. If the insulin level goes too low or too high, a person can develop diabetes, thus sugar is important for our body.
Sugar also occurs naturally in fruits, this sugar mostly contains fructose. Fructose is not bad for health, but excess amounts of glucose or sucrose can be bad for health. The added sugar in various packed items that we eat, can give you a short term energy boost, but they are bad for long term uses.

Note:
American health association has stated that the human body does not require added sugar for health development, natural sugars can suffice the health requirements of a human body. Along with natural sugars, fruits also contain fibres and vitamins, which the products with added sugars lack.