Consuming hot meals, especially those rich in lipids and proteins, stimulates satiety hormones (GLP-1 and CCK) more than cold meals, thereby promoting an increased feeling of satiety.

noli's read

The study cited (DOI: 10.4103/jfcm.jfcm_356_23) is observational/experimental research conducted on a limited sample, which limits the scope of the conclusions. It is biologically coherent that temperature can influence sensory perception and gastric emptying, which has an impact on satiety signals. However, isolating temperature as a key factor is complex, as texture and caloric density often play a predominant role. While the link with GLP-1 and CCK hormones is documented, the magnitude of this effect in humans in real-world situations remains a subject of scientific debate. It is prudent to consider this advice as an interesting avenue rather than an established nutritional rule. Current research does not yet allow for generalizing this effect to all populations or all types of meals.

the sources

1. 1Morton RW, Murphy KT, McKellar SR, et al. 2018
2. 2Leidy HJ, Clifton PM, Astrup A, et al. 2015