nutrition vs science

nutrition and science both are nouns.

Word	Noun	Adjective	Verb	Adverb
nutrition	Yes	No	No	No
science	Yes	No	No	No

As nouns, science is a hypernym of nutrition; that is, science is a word with a broader meaning than nutrition:

Other hypernyms of nutrition include scientific discipline.

nutrition (noun)	science (noun)
the scientific study of food and drink (especially in humans)	a particular branch of scientific knowledge
a source of materials to nourish the body	ability to produce solutions in some problem domain
(physiology) the organic process of nourishing or being nourished; the processes by which an organism assimilates food and uses it for growth and maintenance