I am trying to create a minimum access profile for a platform user.  I cannot clone the Minimum Access - Salesforce profile, since it is a different license, so I cloned the Standard Platform User Profile.  The Apps, Tabs and Objects were easy to turn off for the profile.  Is there an easy way to turn off all of the Field Level Security for a profile?  Right now, from the profile, I am going into each object and manually unclicking any read access that the profile has.  Is there a way to turn all of them off at once without going into the objects?  If not, is there an easy way to query which fields still have access?

Thank,

Zach