consumption vs ingestion

consumption and ingestion both are nouns.

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

As nouns, consumption and ingestion are synonyms defined as:

consumption and ingestion: the process of taking food into the body through the mouth (as by eating)

Other synonyms of consumption include intake, uptake.

consumption (noun)	ingestion (noun)
the act of consuming something	the process of taking food into the body through the mouth (as by eating)
the process of taking food into the body through the mouth (as by eating)
(economics) the utilization of economic goods to satisfy needs or in manufacturing
involving the lungs with progressive wasting of the body