Be sure to eat your r.f.i.d.

The tracking technology known as RFID (Radio Frequency IDentification) is showing up everywhere from grocery stores, to shipping containers, to gas station, to toll roads. Now, your intestines can join in the radio wave fun!

Kodak has filed this patent application for RFID tagged capsules that could be swallowed to track activity in a patient’s digestive system. The capsules would contain a tiny tracking chip which could be used to monitor a patient’s medication history, or to transmit other medical information to a nearby RF data collector. The pills would be designed to break down over time without harming the recipient.

While the idea might seem a little odd, it actually has potential to reduce the need for invasive medical procedures, as well as to ensure that patients take the proper dosage of their medicines.