Add Yahoo as a preferred source to see more of our stories on Google. Surprise! Gelatin is definitely not vegetarian. Here's why. Wanda Abraham / Getty Images Gelatin is such a neutral-seeming food.

Gelatin is a common ingredient in many desserts, but it is not always well known how to use it, what types exist or why it can fail. So we are going to tell you how to make the most of its properties.