While this may be true enough to destroy ones faith in the FDA, it&#x27;s mostly false at least in the US.  Here&#x27;s the US FDA&#x27;s official policy: 
<a href="http:&#x2F;&#x2F;www.fda.gov&#x2F;ICECI&#x2F;ComplianceManuals&#x2F;CompliancePolicyGuidanceManual&#x2F;ucm074540.htm" rel="nofollow">http:&#x2F;&#x2F;www.fda.gov&#x2F;ICECI&#x2F;ComplianceManuals&#x2F;CompliancePolicyG...</a><p>Summarizing, if dyed oranges are sold, there must be a label declaring this at the point of sale.<p>In practice, only early season Florida oranges are dyed.  California has stricter rules, and does not allow it at all: <a href="http:&#x2F;&#x2F;littlelocavores.blogspot.com&#x2F;2011&#x2F;02&#x2F;when-orange-isnt-orange-food-dyes-in.html" rel="nofollow">http:&#x2F;&#x2F;littlelocavores.blogspot.com&#x2F;2011&#x2F;02&#x2F;when-orange-isnt...</a>