Green Tea - Studies that show how it helps with Fasting, Weight Loss and Metabolism

by IF Tea Company April 10, 2023

Green tea is a popular beverage that has been studied for its potential health benefits, including its effects on weight loss, metabolism, and fasting. I know during my search for what could help with those three areas, I came across multiple scattered studies so I thought I would aggregate a few of them here in a blog post. The studies all showed great positive benefits of green tea which is why its a major ingredient in our IF TEA Intermittent Fasting Tea (as well as Yerba Mate, Black Tea and many other ingredients)

Weight loss:

According to a meta-analysis of randomized controlled trials that was published in the International Journal of Obesity in 2009, drinking green tea significantly lowers body weight and body mass index. (BMI). According to the study, green tea's weight loss properties may be due to its catechins, an antioxidant kind.
In a study of overweight women, body weight and body fat were significantly reduced after using green tea extract supplements, according to a randomized controlled experiment that was reported in the Journal of the American College of Nutrition in 2010. According to the study, green tea catechins may boost fat oxidation and energy expenditure, resulting in weight loss.
The Journal of Nutritional Biochemistry published a systematic review and meta-analysis of randomized controlled trials in 2017 that found green tea drinking was linked to a substantial drop in body weight and BMI. According to the study, green tea's catechins can decrease body fat accumulation and help with weight maintenance.

Metabolism:

A study published in the American Journal of Clinical Nutrition in 1999 found that green tea increased energy expenditure and fat oxidation in healthy men. The study suggested that the catechins in green tea may have a thermogenic effect (i.e., increasing the body's production of heat and energy).
A study published in the Journal of Medicinal Food in 2014 found that green tea consumption was associated with improvements in lipid metabolism and insulin sensitivity in obese mice. The study suggested that green tea may have potential benefits for metabolic disorders such as obesity and type 2 diabetes.
A randomized controlled trial published in the European Journal of Clinical Nutrition in 2013 found that green tea extract supplementation was associated with a significant increase in resting metabolic rate in overweight and obese men. The study suggested that the catechins in green tea may increase energy expenditure and fat oxidation, leading to improved metabolic function.

Fasting:

A study published in the Journal of Nutritional Biochemistry in 2017 found that green tea extract supplementation improved markers of fasting-induced liver injury in mice. The study suggested that green tea extract may have a protective effect against fasting-induced liver damage.
A study published in the European Journal of Nutrition in 2019 found that green tea supplementation improved markers of liver function in healthy adults undergoing a 24-hour fast. The study suggested that green tea may have a protective effect against fasting-induced liver damage.injury in mice. The study suggested that green tea extract may have a protective effect against fasting-induced liver damage.
A study published in the Journal of Nutritional Science and Vitaminology in 2008 found that green tea extract supplementation improved glucose tolerance and insulin sensitivity in mice undergoing a 24-hour fast. The study suggested that green tea may have potential benefits for improving glucose metabolism during fasting.