The main effect of NUCB2 polymorphism on restraint (F = 15.448; p = 0.001; η2 = 0.775), grazing (F = 5.601; p = 0.021 η2 = 0.505), night eating (F = 3.932; p = 0.05 η2 = 0.417) and food addiction (F = 4.442; p = 0.039; η2 = 0.447) was evident in the Ob-BED group. Here, NUCB2 is linked to X-linked cone dysfunction syndrome with myopia.