Hippocrates (460–370 BC) stated “Let food be your medicine and medicine be your food”
Nowadays, the relationship between food and drugs is getting closer.
Nutraceuticals are components of dietary origin, with claimed beneficial therapeutic activities
Green tea (GT) is a commonly used nutraceutical and has been in use in traditional medicine.
The health benefits of GT are mainly attributed to the antioxidant properties and the ability of its polyphenolic catechins to scavenge reactive oxygen species (ROS)
Recently, the effect of antioxidant activity of catechins has been evaluated in a number of diseases associated with ROS, such as cancer (Davalli et al., 2012) and autoimmune diseases