Which is because modern food production has changed significantly and so the way we humans consume it. It's their responsibility to transport and storage of energy and structural components.

Carbohydrates are simple organic compounds. We can think of our body as a chemical processing plant which takes in the chemicals, processes them through different types of reactions and finally distributes them into various parts of the body, either to be used or stored for later. The chemicals used by the body are divided into two categories: Macronutrients, these are the substances we need to eat often in large quantities, and micronutrients, these are the substances we need in small amounts. There are three major classes of macronutrients which are important for living organisms: carbohydrates, fats, and proteins. The main source of energy for human body is a carbohydrate, that's why they are necessary for our body.

Carbohydrates have two types

Simple carbohydrates or monosaccharides

Simple carbohydrates such as glucose, fructose, galactose, maltose and lactose are often found in refined and processed foods such as white bread, white sugar, cake, milk products, soft drinks, candy, pastas and syrups. But it's better to intake the carbohydrates from natural foods like milk, vegetables and fruits because they purely contain vitamins, minerals and fiber.

Complex carbohydrates or polysaccharides

Complex carbohydrates are often referred as polysaccharides because they are polymers of the simple sugars. They include starches and fiber, and can often be found in refined and processed foods as well as natural foods such as bananas, barley, beans , brown rice, Tomatoes, chickpeas, lentils, nuts, oats, pizzas, parsnips, potatoes, root vegetables, sweet corn, Onions, wholegrain cereals, whole meal breads, whole meal flour, whole meal pasta, biscuits, yams etc. Complex carbohydrates normally take longer than the simple carbohydrates to digest, because the refining process eradicates some of the nutrients and grain's fiber.

Advise: Half of your body needs are fulfilled by carbohydrates so take as much as you can. But prevent taking them in excessive amount; it might lead you to gain extra weight.