Jared Fogle Getting Professional Help ... in Federal Prison

Jared Fogle has been transferred to a federal prison in Littleton, CO, where he'll get psychological treatment.

The ex-Subway pitchman got more than 15 years for soliciting child prostitution and possessing child porn. The prison outside Denver is a low security facility, and houses another famous inmate from the midwest ... ex-Illinois Gov. Rod Blagojevich.

Fogle's appealing his sentence, but for now ... his release date is listed as July 11, 2029. Enjoy the showers, sicko.