alimentation vs nutrition

alimentation and nutrition both are nouns.

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

As nouns, alimentation and nutrition are synonyms defined as:

Other synonyms of alimentation include aliment, nourishment, nutriment, sustenance, victuals.

alimentation (noun)	nutrition (noun)
the act of supplying food and nourishment	the scientific study of food and drink (especially in humans)
a source of materials to nourish the body	a source of materials to nourish the body
	(physiology) the organic process of nourishing or being nourished; the processes by which an organism assimilates food and uses it for growth and maintenance