Final answer:
The glycemic index ranks carbohydrates based on their impact on blood sugar levels. Foods with a high index cause rapid fluctuations in blood sugar. Carbohydrates are organic compounds used by the body for energy.
Step-by-step explanation:
The glycemic index is a ranking system that assigns a number from 0 to 100 to carbohydrates based on how quickly and by how much they raise blood sugar levels after eating. Foods with a high glycemic index, such as white bread, are rapidly digested and cause significant fluctuations in blood sugar levels.
Carbohydrates are organic compounds that include sugars, starches, and fiber. They are used by the body for energy. Sugars and starches are easily digested and provide calories, while fiber cannot be digested but plays a role in good health.
Some examples of foods high in carbohydrates are bread, pasta, and potatoes. Athletes often rely on carbohydrate-rich foods for high-performance activities.