Uridine is a naturally occurring nucleoside found in every cell of the body. It serves as one of the building blocks of RNA (ribonucleic acid), a molecule involved in protein synthesis and numerous cellular functions. The body produces uridine on its own, and it is also obtained in small amounts from foods such as brewer's yeast, organ meats, broccoli, tomatoes, and certain dairy products. As a supplement, uridine is most commonly available as uridine monophosphate (UMP), although other forms such as triacetyluridine are also available.
Uridine plays an important role in the production of cell membranes, particularly in nerve cells, where it contributes to the synthesis of phospholipids that help maintain healthy brain structure and function. It is also involved in energy metabolism, glycogen production, RNA synthesis, and cellular signaling. Because of its role in brain health, uridine has attracted interest as a potential supplement for supporting memory, cognitive function, mood, and nerve health.
Today, uridine supplements are commonly taken to support cognitive performance, memory, learning, mood, nerve function, and overall brain health. Some people also use uridine to support healthy aging, athletic recovery, or mitochondrial function.