There have been recent advances in our understanding of the drivers of energy intake (EI). However, the biological drivers of diﬀerences in eating rate (ER) remain less clear. Studies have reported that the fat-free mass (FFM) and basal metabolic rate (BMR) are both major components that contribute to daily energy expenditure (EE) and drive EI. More recently, a number of observations report that higher ER can lead to greater EI. The current study proposed that adults with a higher BMR and higher energy requirements would also exhibit higher ERs. Data on BMR, FFM, and ER were collected from 272 Chinese adults (91 males and 181 females) in a crosssectional study. Analysis showedsigniﬁcantpositiveassociations betweenBMRandER(rs=0.405, p < 0.001), and between FFM and ER (rs=0.459, p < 0.001). BMR explained about 15% of the variation in ER which was taken to be metabolically signiﬁcant. This association provides metabolic explanation that the diﬀerences in an individual's BMR (hence energy requirements) may be correlated with ERs. This merits further research.
Studies reported in this manuscript were funded by the Agency for Science, Technology and Research (A*STAR) (SPF/2013 - 003), Singapore.