Green tea and coffee, while both containing caffeine and antioxidants, differ significantly in their caffeine content and overall impact on alertness, sleep, and general health. Understanding these distinctions is key to choosing the most suitable beverage for your morning routine.

Coffee provides quicker alertness

According to Eatingwell, coffee generally contains more caffeine than green tea. A standard cup of brewed coffee, approximately 240 ml, typically delivers 80-100 mg of caffeine, whereas an equivalent serving of green tea provides only 30-50 mg.

Due to its higher caffeine content, coffee boosts alertness, enhances focus, reduces fatigue, and can improve morning exercise performance. Moderate consumption may also uplift mood and cognitive function.

Coffee contains caffeine to boost morning alertness. Photo: Thuy Vi

Green tea suits those prone to insomnia or anxiety

In addition to caffeine, green tea contains L-theanine, an amino acid known for promoting relaxation without inducing drowsiness. This unique combination of L-theanine and moderate caffeine enhances focus with less jitteriness or anxiety compared to coffee.

Healthline suggests that green tea may be a better option for individuals sensitive to caffeine, those who frequently experience anxiety, rapid heart rate, or difficulty sleeping. This beverage offers less nervous system stimulation, fostering stable alertness rather than the abrupt "energy surge" often associated with coffee.

Both are rich in antioxidants

Beyond their stimulating effects, both green tea and coffee are sources of polyphenols, a group of antioxidants known for reducing inflammation and protecting cells from free radical damage.

Studies indicate that regular consumers of coffee or tea have a lower risk of certain chronic diseases. Specifically, moderate coffee intake has been linked to a reduced risk of cardiovascular disease, type 2 diabetes, fatty liver disease, and cognitive decline.

Green tea, meanwhile, is notable for its catechins, particularly EGCG, a compound widely researched for its role in supporting cardiovascular health, reducing inflammation, and improving metabolism.

Which to choose in the morning?

Experts suggest that neither beverage is inherently superior; both green tea and coffee offer distinct benefits. For quick alertness, pre-workout energy, or tasks demanding high concentration, coffee is often the more suitable choice due to its higher caffeine content. Conversely, if you are prone to nervousness, anxiety, are sensitive to caffeine, or prefer sustained, gentle alertness throughout the morning, green tea may be a better option.

Regardless of your preference, experts advise healthy adults to limit caffeine intake to 400 mg per day. They also recommend consuming these beverages in the morning or early afternoon to avoid sleep disruption. Crucially, moderate consumption should be combined with a healthy diet and lifestyle.

Furthermore, the health benefits of both green tea and coffee can diminish significantly when excessive sugar, syrup, or cream is added. Therefore, it is advisable to consume them plain or with only a small amount of low-fat milk, if desired.

Bao Bao (Compiled)