Gum Drops

 are a food item found in Fallout 3. It can restore some of your Hit Points and causes no Radiation poisoning, but they are very rare. While it seems odd that the box says Radioactive Gumdrops and do not irradiate you, gumdrops actually provide radiation, but less than 1 rad per package. Since the in game description will only show whole rads, the game rounds down and displays no radiation at all.

Known Locations
One can be found at A Quick Fix in Rivet City. They must be stolen from the shop and do not appear to be for sale in the owner's inventory.

In the Jury Street Metro Station area (see Dead Man's Signal).