Green tea contains catechins, a group of plant compounds that belong to a larger family called polyphenols. Polyphenols are found in many fruits, vegetables, and beverages, and are known for their antioxidant activity. Antioxidants help protect cells from damage caused by reactive molecules often referred to as free radicals.
Higher intake of polyphenols has been linked in observational studies to lower rates of coronary heart disease and heart attacks, suggesting a potential role in long-term cardiovascular health.
Researchers have also examined whether green tea catechins may influence body fat distribution. A study published in the Journal of Functional Foods (e-published January 20, 2012) evaluated 104 Chinese adults with higher levels of abdominal fat. Participants were assigned for 12 weeks to drink either a daily beverage containing green tea (providing 609.3 mg of catechins and 68.7 mg of caffeine) or a control beverage.
At the end of the study period, the group consuming the catechin-rich green tea experienced a reduction in abdominal (belly) fat compared with the control group. While this type of study does not prove cause and effect, it suggests that green tea catechins may play a role in supporting healthier body composition when consumed regularly.
