According to recent research, coffee consumption is also linked to longevity. Considering the diversity of tea types, there is less evidence regarding beneficial properties. However, even small doses of caffeine can cause some individuals to experience nervousness, restlessness, or insomnia.
Antioxidant-rich products, including coffee, have a regular content of antioxidants, such as polyphenols, which help reduce chronic inflammation and neutralize harmful free radicals. The content of polyphenols in green and black tea is higher than in other types of tea, and close to high levels of antioxidants found in coffee.
The health benefits of coffee and tea are associated with a range of health-promoting properties, including a reduced risk of cardiovascular diseases, type 2 diabetes, liver diseases, depression, and cognitive impairment. Many types of herbal teas contain minimal amounts of caffeine, if they contain any at all.
The average safe dose of caffeine is up to 400 mg. For example, black tea contains a high caffeine concentration ranging from 40 to 70 mg per 8-ounce serving, while other types of tea contain less.
Most studies focusing on the relationship between caffeine consumption and health improvements indicate that the optimal average dose is around 300 mg. Many studies have shown that people who consume coffee and tea may derive greater health benefits compared to those who do not consume these beverages.
All these studies are monitored, meaning that it cannot be said with certainty that coffee or tea necessarily contribute to health improvements. Nevertheless, there are compelling arguments supporting the connection between coffee, tea, and positive health indicators, starting from caffeine.
The focus of studies has primarily been on caffeine in tea and coffee. Caffeine increases concentration and reaction time, while also immediately improving alertness and helping to combat fatigue. Caffeine may also enhance physical performance, likely due to increased adrenaline levels and stimulation of the release of substances, as well as improving mood.
Coffee generally contains more caffeine per ounce (29 milliliters) compared to tea. In a standard 8-ounce cup of coffee, it typically contains around 80 to 100 milligrams of caffeine.
Caffeine content in tea varies depending on the type. For this reason, most people turn to coffee when they need a boost.
However, a large observational study published online on September 17, 2024, in the journal of hypophysis and metabolism found that consuming coffee and tea containing 200 to 300 mg of caffeine per day is associated with a reduced risk of diabetes-related complications, cardiac disease, and insulin resistance.
From a health standpoint, there’s no compelling reason to switch from coffee to tea, but you can enjoy the variety of tea flavors that contain caffeine to diversify your morning beverage.
