What is the most common type of food coloring used in the world?

The most common type of food coloring used in the world is synthetic food coloring, also known as artificial food coloring. Synthetic food coloring is made from chemicals that are specifically designed to be used as food dyes. They are used to add color to a wide variety of foods and beverages, including soft drinks, candy, baked goods, and processed meats.

There are many different types of synthetic food dyes, but some of the most commonly used ones include Yellow 5, Red 40, and Blue 1. These dyes have been approved for use in foods by the U.S. Food and Drug Administration (FDA), and are generally considered safe for consumption in small quantities. However, some studies have linked synthetic food dyes to hyperactivity and other behavioral problems in children, and some people may be sensitive or allergic to certain types of dyes.