What is the difference between sugar and starch?
Sugar and starch are both carbohydrates, but they differ in their structure, digestion, and how quickly they provide energy. Sugar is a simple carbohydrate that is digested and absorbed quickly, while starch is a complex carbohydrate that is broken down more slowly into glucose.
| Sugar | Starch |
|---|---|
| A simple carbohydrate made of one or two sugar molecules. | A complex carbohydrate made of many glucose molecules linked together. |
| Digested and absorbed quickly, providing rapid energy. | Digested more slowly, providing a steady release of energy. |
| Naturally found in fruits, milk, and honey, and also added to sweets and soft drinks. | Found in foods such as rice, wheat, potatoes, maize, bread, and cereals. |
| Does not give a blue-black colour with iodine solution. | Gives a blue-black colour with iodine solution during the starch test. |
Both sugar and starch provide energy, but consuming complex carbohydrates such as starch-rich whole grains is generally healthier because they also supply fibre and help maintain stable blood sugar levels.