Catechins are the most abundant polyphenols in tea leaves. Research reports indicate that catechins have multiple benefits, including antioxidant and anti-inflammatory effects, reducing the risk of heart disease, preventing cancer, lowering blood lipids, reducing body fat formation, antibacterial properties, altering gut microbiota, and eliminating odors. Currently, tea beverages on the market labeled with health food marks primarily reference the physiological functions of catechins.
The content of polyphenols decreases as the degree of fermentation increases. However, some studies have shown that although fermented teas contain fewer catechins, their ability to reduce blood lipids and delay oxidation remains high, suggesting that there may be other antioxidant components yet to be identified. While tea has many benefits, daily tea drinkers should still pay attention to some details when consuming it.
Avoid drinking tea immediately after meals
Because tea tannins can reduce iron absorption, drinking tea during or after meals may decrease iron absorption from the diet by up to 65%.
Do not take medicine with tea. Tea tannins can precipitate with certain medications, affecting their efficacy. For example, iron supplements, fluoroquinolone antibiotics, and tetracycline antibiotics can be adsorbed by tannic acid and alkaloids in tea, reducing the body's absorption of these drugs.
Cold-brewed tea is not suitable for those sensitive to caffeine, pregnant women, children, or people with heart disease or ulcers. However, research shows that tea brewed cold for 12 hours contains only one-third of the caffeine of tea brewed hot for 5 minutes. If you really want to drink tea, try cold-brewed tea, which has less caffeine.
Reduce sugar content. Popular tea beverages on the market come with added sugar, half sugar, or no sugar. Be careful when drinking them. Sugared tea beverages increase calorie intake and are not recommended for people with diabetes, high blood lipids, or those trying to lose weight.
Pay attention to storage. Floral and fruit teas require special attention because the fruit particles contain more moisture and are prone to mold due to dampness. Using desiccants or storing them in the refrigerator are good options. However, no matter what type of tea, it is important to pay attention to the expiration date.
Consume in moderation. According to research on cancer prevention effects, drinking just 150 ml of tea daily can provide health benefits. Currently, certified canned tea beverages that are approved as health foods recommend drinking 650 to 1200 ml to achieve the labeled effects. However, it is best to decide the intake based on individual circumstances. If drinking tea affects sleep or causes discomfort, do not force yourself to drink it.
Although tea is good, it should be consumed in moderation. If you master the way of drinking tea, it can not only bring a fresh and fragrant taste but also contribute to wellness!