are still unconcerned about what they ingest 
(ROOT (S (VP (VBP are) (ADVP (RB still)) (ADJP (JJ unconcerned) (PP (IN about) (SBAR (WHNP (WP what)) (S (NP (PRP they)) (VP (VBP ingest)))))))))
(ROOT (S (VP (VBP ) (ADVP (RB )) (ADJP (JJ ) (PP (IN ) (SBAR (WHNP (WP )) (S (NP (PRP )) (VP (VBP )))))))))