Overview
- This week researchers published a synthesis in Obesity Reviews that combines animal mechanisms, computational models, and Australian survey data to link alcohol consumption with higher circulating FGF21 and stronger savoury cravings.
- Lab work reported in Science shows gut cells sense low protein and signal the brain to heighten mouth sensitivity to protein‑associated flavours, a pathway the authors say is activated by alcohol through FGF21.
- Analysis of national dietary survey days found people ate more savoury foods on drinking days, with each standard drink associated with increased savoury intake and reduced sweet intake.
- The team’s models show that when savoury flavours are provided by low‑protein ultra‑processed foods these items act as ‘protein decoys’, prompting people to eat more calories to satisfy protein appetite.
- Authors note limits: the paper uses modelling and ecological survey links rather than randomized trials, and they recommend simple steps such as offering protein‑rich whole foods when drinking to reduce overconsumption.