Fructose transporters are specialized proteins that facilitate the movement of fructose, a simple sugar, across cell membranes. These transporters are crucial for the absorption of fructose in the intestines and its uptake in various tissues, including the liver and muscles. The primary transporter responsible for this process is known as GLUT5. There are different types of fructose transporters, with GLUT2 also playing a role in fructose transport, especially in the liver. These transporters help regulate blood sugar levels and energy metabolism by ensuring that cells receive the necessary sugars for energy production.