feeding vs ingestion

feeding and ingestion both are nouns.

Word	Noun	Adjective	Verb	Adverb
feeding	Yes	No	No	No
ingestion	Yes	No	No	No

As nouns, ingestion is a hypernym of feeding; that is, ingestion is a word with a broader meaning than feeding:

feeding: the act of consuming food
ingestion: the process of taking food into the body through the mouth (as by eating)

Other hypernyms of feeding include consumption, intake, uptake.

feeding (noun)	ingestion (noun)
the act of consuming food	the process of taking food into the body through the mouth (as by eating)
the act of supplying food and nourishment