Did luffy eat a devil fruit or did he get a precreption from his doctor to a special medicine?

At least in isreal, we get japanses inuyasha (with subs) on a daily basis, and while there are some annying mistakes, it's basically uncensored and we don't pay VIZ anything....

oh, and changing the marines into 'navy' is the least of one piece's problems, that actually an acute translation.