Oman today_ Carbohydrates are one of the most important sources of energy for the human body and are composed of carbon, hydrogen, and oxygen atoms. This large group of nutrients includes a wide range of compounds, from the simplest sugars such as glucose to more complex structures like starch and dietary fiber. Glucose serves as the primary fuel for cells, and even small disruptions in its availability or utilization can affect the function of various organs, particularly the brain. The human brain requires approximately 100 grams of glucose daily, which highlights the vital role of carbohydrates in maintaining its proper function, as nerve cells cannot efficiently use fats or proteins as energy sources.
In adults, roughly 300 grams of carbohydrates are stored in the body. A small portion circulates in the blood as blood sugar, while the majority is stored as glycogen in the liver and muscles. These reserves are used when the body needs immediate energy, but the capacity to store glycogen is limited. When carbohydrate intake exceeds the body’s requirements, the excess is converted into fat and stored in subcutaneous fat and around internal organs. Therefore, excessive consumption of carbohydrates, especially simple sugars, can contribute to fat accumulation and weight gain.
Carbohydrates also play multiple roles in the food industry. Many food products rely on them for texture, consistency, sweetness, and overall quality. Certain carbohydrates, such as polydextrose, are even used to reduce the amount of fat needed in desserts without affecting taste or texture. Starches and sugars are commonly employed in products like jams, jellies, and desserts as thickeners, stabilizers, or gelling agents.
From a nutritional standpoint, the precise carbohydrate requirement for the body has not been definitively established. However, experts recommend that a daily diet include at least 50 to 100 grams of digestible carbohydrates to supply the necessary energy for the brain and blood cells. Typically, it is suggested that around 60% of daily energy intake come from carbohydrates—meaning a 2,000-calorie diet would require approximately 300 grams of carbohydrates. The type of carbohydrate consumed is even more important than the quantity. Complex carbohydrates, such as whole grains, legumes, and starchy vegetables, are digested more slowly, providing sustained energy, whereas simple carbohydrates, like sugar or fruit sugars, are absorbed quickly and can cause rapid spikes in blood sugar.
Even in weight-loss diets, completely eliminating carbohydrates is not recommended. Choosing the right types and consuming them in moderation can provide steady energy while supporting effective weight management. In subsequent discussions, a more detailed look can be taken at the different types of carbohydrates and which ones are most beneficial for overall health.