- The Effect of Coffee on Metabolic Rate
The Effect of Coffee on Metabolic Rate
Coffee is widely known to be a stimulant. This is due to the
presence of caffeine in the drink, reviewed by (Acheson et al.,
1980). The properties of caffeine as a metabolic stimulant were
originally discovered in the early twentieth century, in terms of
changes in the rate of respiration of individuals that ingest
caffeine through drinking coffee. (Higgins and Means, 1915). One
cup of coffee contains about 100mg caffeine and is approximately
equivalent to the ingestion of caffeine at 1.25mg/kg of body weight
(Acheson et al., 1980).
Both subjects were observed to exhibit movements of their bodies
that may have resulted in non-exercise activity thermogenesis in
this study and therefore such activity is likely to have affected
the outcome of the study in terms of the total energy expenditure
observed here. This observation provides a further caveat to the
conclusions provided by the data calculated from this study.
Overall, this study has provided the expected outcome that
caffeine increases the energy expenditure of an individual while
not affecting their gas exchange or respiratory quotient, but
because of the number of potential variables in the study, a
further, more rigorous investigation is required to confirm that
the data presented here are viable and accurate.