( Vitamins ( ( are ( considered ( to ( ( be micronutrients ) ( because ( we ( only ( ( need ( ( ( relatively small ) amounts ) ( of them ) ) ) ( to ( maintain ( basic health ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Vitamins)) (VP (VBP are) (VP (VBN considered) (S (VP (TO to) (VP (VB be) (ADJP (JJ micronutrients)) (SBAR (IN because) (S (NP (PRP we)) (VP (ADVP (RB only)) (VBP need) (NP (NP (ADJP (RB relatively) (JJ small)) (NNS amounts)) (PP (IN of) (NP (PRP them)))) (S (VP (TO to) (VP (VB maintain) (NP (JJ basic) (NN health))))))))))))) (. .)))
Vitamins are considered to be micronutrients because we only need relatively small amounts of them to maintain basic health.
(ROOT (S (NP (NNS Micronutrients)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (NNS nutrients)) (SBAR (S (NP (DT the) (NN body)) (VP (VBZ needs) (PP (IN in) (NP (NP (ADJP (RB relatively) (JJ small)) (NNS amounts)) (, ,) (PP (VBG including) (NP (NNS vitamins) (CC and) (NNS minerals)))))))))))) (. .)))