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Health effects of tea. Although health benefits have been assumed throughout the history of using Camellia sinensis as a common beverage, there is no high-quality evidence that consuming tea confers significant benefits other than possibly increasing alertness, an effect caused by caffeine in the tea leaves.
Regular green tea is 99.9% water, provides 1 kcal per 100 mL serving, is devoid of significant nutrient content (table), and contains phytochemicals such as polyphenols and caffeine. Numerous claims have been made for the health benefits of green tea, but human clinical research has not found good evidence of benefit.
Does green tea lead to weight loss or reduce belly fat? No, Fung says. It contains caffeine, which can temporarily increase metabolic rate a little, but “it’s really it’s not going to be ...
When taken orally, EGCG has poor absorption even at daily intake equivalent to 8–16 cups of green tea, an amount causing adverse effects such as nausea or heartburn. After consumption, EGCG blood levels peak within 1.7 hours. [6]
Bottom line: Both green tea and black tea boast some impressive health benefits, making it difficult to say which one is healthier. In other words, you really can’t go wrong with either...
The health benefits of tea are endless. In this episode of Wellness Wednesdays, find out what ailments your favorite teas can help cure. Wellness Wednesday: The health benefits of drinking tea