The FTO gene, also known as the Fat Mass and Obesity-Associated gene, is a complex genetic locus that plays a crucial role in regulating body weight and metabolism. Synonyms for FTO gene are the fatso and obesity-associated gene, FTO protein-coding gene, alpha-ketoglutarate-dependent dioxygenase FTO, and FTO alpha-ketoglutarate-dependent dioxygenase. Studies have shown that genetic variations in the FTO gene can increase an individual's susceptibility to obesity, diabetes, and other related disorders. Understanding the various names for this gene can help researchers and healthcare professionals better identify and treat these conditions by targeting the underlying genetic factors that contribute to them.