The study, which has not yet been peer-reviewed, had some limitations, according to the researchers
An overview table of included studies is available in the Supplementary Material (S1) and online with options to filter the database ( The table includes information on first author and year of publication (1), paper title (2), whether the study was included in the meta-analysis (3) or systematic review (4), a tag indicating whether ghrelin or GLP-1 was investigated (5), specification of the hormonal assessment and/or manipulation (i.e., whether plasma acyl-, desacyl-, total ghrelin, GLP-1 was measured, which substance was administered (if any)) (6), type of reward phase assessed during fMRI (7), type of reward (e.g., food, money, alcohol) (8), and sample population(s) (9)
High blood pressure is the second most common qualifier
doi: 10.53941/ijddp.v1i1.188 189