In our Study of the Week series, Chris looks at the study of the week- Weight Maintenance after Dietary Weight Loss: Systemic Review and Meta-Analysis on the Effectiveness of Behavioral Intensive Intervention (https://pubmed.ncbi.nlm.nih.gov/35334917/) which found that even with professional help, only 25% of people in 8 studies maintained weight after 12 months. We critique the study and offer theories as to why that would be the case.