Artificial sweeteners, also known as sugar substitutes or sugar-free sweeteners, are substances used to replace sugar in foods and beverages. Sugar substitutes are used for a variety of reasons, such as: 1) To help with weight loss – some people choose to limit their energy intake in food by replacing high-energy sugar or corn syrup with other sweeteners that have little or no energy in the food. This allows them to eat the same foods they would normally eat while still losing weight and avoiding other problems associated with excessive calorie intake. 2) For diabetes mellitus; People with diabetes have difficulty regulating their blood sugar. By limiting their sugar intake with artificial sweeteners, they can enjoy a varied diet while carefully controlling their sugar intake. In addition, some sugar substitutes release energy but are metabolized more slowly, meaning that blood sugar levels can remain more stable over time.