Now you can shallow capsule that can transmit data using wireless technology which is very similiar to shallowing a Wi-Fi chip into your body. This isn't a joke or lie as FDA has approved the sales of the SmartPill pH.p Capsule.

It’s a small blue electronic device shaped like a pill that is meant to be swallowed. Because of it’s wireless capablilites it can transmit data [via a reciever worn by the patient] as it is passing through the gastrointestinal tract.