Starch is a carbohydrate found in many plants, serving as a primary energy source. It is made up of long chains of glucose molecules and is commonly found in foods like potatoes, rice, and corn. When consumed, starch is broken down into glucose, which the body uses for energy. Sweeteners are substances that add sweetness to food and drinks. They can be natural, like honey and sugar, or artificial, like aspartame and sucralose. Sweeteners are often used to enhance flavor without adding significant calories, making them popular in many low-calorie and sugar-free products.