"The chitin in this tea is a synonym for chitosan. Chitin is a polysaccharide that found in crustacean exoskeletons that is purported to absorb six to 10 times its weight in fat and oils, according to Jamie Fritch of Vanderbilt University. This results in a "grease ball" that your body cannot absorb, so it is excreted in the stool. Chitosan might absorb minerals that your body needs in addition to fats, which can lead to your body being deprived of nutrients that it needs, Fritch advises."
If you enjoy tea, I would just stick with green or oolong tea. Or you can do what I do and combine them both.