Tea contains important Phytonutrients such as flavonoids, which are a type of antioxidant found mainly in green or black tea. They can help maintain healthy cells and tissues and help with taking care of your cardiovascular function. 

Some teas like Earl grey have the flavour of bergamot, this is a plant that produces a type of citrus fruit. Oil from the peel of the fruit, and extract from the fruit juice are often used in natural supplements.