Which of the following is a non-calorie sweetener?

Saccharin is recognized as a non-calorie sweetener because it provides sweetness without contributing significant calories to the diet. This characteristic makes it a popular choice for individuals looking to reduce calorie intake or manage weight. Saccharin is often used in various food products and is many times sweeter than sugar, which means only a small amount is needed to achieve the desired sweetness.

In contrast, mannitol and xylitol are sugar alcohols that do contain some calories, although they are lower in calories than regular sugar. Glucose is a simple sugar that contains calories and is commonly found in many foods. Understanding the calorie content and the metabolic effects of these sweeteners is essential for making informed dietary choices, particularly for people with conditions such as diabetes or those aiming for weight management.