( ( ( Healthy people ) ( eating ( a ( balanced diet ) ) ) ) ( rarely ( ( need ( protein supplements ) ) . ) ) )
(ROOT (S (NP (NP (JJ Healthy) (NNS people)) (VP (VBG eating) (NP (DT a) (JJ balanced) (NN diet)))) (ADVP (RB rarely)) (VP (VBP need) (NP (NN protein) (NNS supplements))) (. .)))
Healthy people eating a balanced diet rarely need protein supplements.
(ROOT (S (NP (NNP Protein)) (VP (VBZ is) (NP (NP (DT an) (JJ important) (NN part)) (PP (IN of) (NP (DT a) (JJ healthy) (NN diet)))) (SBAR (IN because) (S (NP (PRP it)) (VP (VBZ is) (VP (VBN needed) (S (VP (TO to) (VP (VB repair) (NP (NN tissue)))))))))) (. .)))