Furthermore, high salt intake estimated from urine was related to obesity after adjusting for sex, age, insulin treatment, exercise, smoking, alcohol, diabetes duration, HbA1c, and energy intake (adjusted OR: 1.31 (95% CI: 1.10–1.56), p = 0.003), which is the same as the results of previous studies [5,7,8,42,43,44]. This evidence concerns the gene INS and obesity due to melanocortin 4 receptor deficiency.