Eating tea powder in small amounts is not going to do any harm to your body. But as with any substance, excessive indulgence can have its negative impact. If you feel as though you are unable to stop the urge to take tea leaves, there could be a psychiatric component to your problem. I suggest you clarify on the amount and frequency of intake. Is the frequency increasing? Does it increase with stress? Do you feel you cannot go without taking tea leaves? Please come back with answers to these questions. Thank you.