—This typical office worker's breakfast seems very nutritious and is also quite high in calories. But for some reason, this bountiful breakfast doesn't keep many people feeling full until noon. After research, nutritionists from the UK's Food Standards Agency found that the cause of this increased hunger is black tea and coffee.
Sun Meifang, director of the Nutrition Department at Shanghai Ninth People's Hospital, points out that both of these foods contain caffeine, which can stimulate the adrenal glands to produce adrenaline, making people feel energized and full of energy in the short term. However, as adrenaline levels drop, the body quickly returns to a state of fatigue, and people soon feel hungry again.
Experts believe that a person should consume 1.5 to 2 liters of water per day, but tea and coffee have a diuretic effect, so they are not actually effective in helping the body replenish fluids. Therefore, for office workers with a fast pace of life and high work pressure, it is best to drink less black tea and coffee for breakfast.