Which one of the following alternative sugars is not cariogenic?

Xylitol is not cariogenic, meaning it does not contribute to the formation of cavities in teeth. In fact, xylitol has been shown to have several dental benefits. It helps reduce the levels of harmful bacteria in the mouth that are responsible for tooth decay. Unlike traditional sugars, xylitol cannot be fermented by these bacteria, thereby preventing the acid production that leads to demineralization of tooth enamel. Additionally, xylitol may stimulate saliva production, which can further aid in neutralizing acids and enhancing the remineralization of teeth.

In contrast, options like agave nectar, dried fruit, and honey contain sugars that can be fermented by oral bacteria, contributing to acid production and increasing the risk of cavities. Therefore, xylitol stands out as a beneficial alternative sugar in terms of dental health.