Medically reviewed by Kristie Reed, PharmD Key Takeaways Green tea extract and caffeine together can boost focus and mental ...

According to the nutritionist, the best way to consume L-theanine is to blend green tea with apples and other ingredients ...

Green tea has been one of the most popular drinks in the world for centuries. It's also been touted for its antioxidants, which are believed to provide an array of health benefits. Studies have ...