Nicotinamide Riboside (NR) is a naturally occurring form of vitamin B3, originally identified in trace amounts in foods such as milk and yeast. It is used by the body as a precursor to Nicotinamide Adenine Dinucleotide, a coenzyme found in all living cells and involved in a wide range of bodily processes. In food supplements, NR is typically produced using advanced, controlled manufacturing methods to ensure purity and consistency while maintaining the same structure as the compound found in nature. As a result, it is commonly included in modern formulations designed to complement a balanced diet and everyday nutritional intake.