Splenda

About
SPLENDA® Brand Sweetener, also known as sucralose, is a no-calorie sweetener that can be used as part of a healthy diet to reduce the calories and carbohydrate from sugar that you consume.It is made through a patented process that starts with sugar and converts it to a no-calorie, non-carbohydrate sweetener. The result is a very stable sweetener that tastes like sugar and is 600 times sweeter than sugar, but without its calories. After you eat SPLENDA® Brand Sweetener, it passes through the body without being broken down for energy, so the body does not recognize it as a carbohydrate. For bulk it uses Maltodextrin like other sweeteners, which has 4 calories per gram, meaning 1 packet of splenda will have 3.36 calories.

Trivia
Sucralose can't really cause cancer like other sweeteners.