MUC5AC and obesity due to melanocortin 4 receptor deficiency: We have not found any literature on mucin O-glycosylation changes in obesity patients, and we cannot make a fair direct comparison with the datasets produced previously by our group or other groups and our dataset, both because of that most of these datasets do not come from fully healthy individuals either, differences in methodology, and the number of structures identified in these studies is much lower per individual than in the current dataset.