Drinking tea or coffee can temporarily help reduce feelings of hunger, but it may not completely eliminate the need for sustenance.
Both tea and coffee contain compounds that can have appetite-suppressing effects, but these effects can vary from person to person and may not be long-lasting.
There are a few reasons for it.
Caffeine
Both tea and coffee contain caffeine, a natural stimulant that can have a mild appetite-suppressing effect.
Caffeine can increase metabolic rate and temporarily reduce the sensation of hunger.
However, the effects of caffeine can vary depending on an individual's tolerance and sensitivity to it.
Thermogenesis
Caffeine in tea and coffee can also promote thermogenesis, which is the production of heat in the body.
This process can contribute to a slight increase in energy expenditure and may help reduce appetite temporarily.
Hydration
Drinking tea or coffee can provide a sense of fullness due to the liquid volume consumed, which can lead to a decrease in appetite.
However, this effect is relatively short-lived, and the body's need for nutrients will eventually resurface.
Gut Hormones
Some research suggests that certain compounds in tea, such as catechins found in green tea, may influence gut hormones related to hunger and satiety.
These compounds could potentially help regulate appetite to some extent.